diff --git a/app/game-engine/package.json b/app/game-engine/package.json
index bf4694dc..f2ed4b63 100644
--- a/app/game-engine/package.json
+++ b/app/game-engine/package.json
@@ -107,6 +107,7 @@
         "lint:fix": "eslint . --fix",
         "profile:npc-unification-memory": "node scripts/profile-npc-unification-memory.mjs",
         "profile:npc-unification-timing": "node scripts/profile-npc-unification-timing.mjs",
+        "profile:npc-lifecycle-memory": "node scripts/profile-npc-lifecycle-memory.mjs",
         "profile:npc-capacity-1200": "node scripts/profile-npc-capacity-1200.mjs",
         "test": "vitest run --config vitest.config.ts",
         "typecheck": "pnpm -w tsc7 -b app/game-engine/tsconfig.json"
diff --git a/app/game-engine/scripts/profile-npc-lifecycle-memory.mjs b/app/game-engine/scripts/profile-npc-lifecycle-memory.mjs
new file mode 100644
index 00000000..12414e00
--- /dev/null
+++ b/app/game-engine/scripts/profile-npc-lifecycle-memory.mjs
@@ -0,0 +1,120 @@
+import { spawn } from 'node:child_process';
+import { mkdtempSync, mkdirSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const packageRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+const vitestPath = path.join(packageRoot, 'node_modules', 'vitest', 'vitest.mjs');
+const defaultRuns = [
+    { scenario: 'steady-state', pruneDeletedQueues: true },
+    { scenario: 'growth', pruneDeletedQueues: true },
+    { scenario: 'death-drain', pruneDeletedQueues: false },
+    { scenario: 'death-drain', pruneDeletedQueues: true },
+    { scenario: 'balanced-churn', pruneDeletedQueues: false },
+    { scenario: 'balanced-churn', pruneDeletedQueues: true },
+    { scenario: 'rollback-churn', pruneDeletedQueues: true },
+];
+
+const parseRuns = () => {
+    const raw = process.env.NPC_LIFECYCLE_MEMORY_SCENARIOS;
+    if (!raw) return defaultRuns;
+    return raw.split(',').map((entry) => {
+        const [scenario, variant = 'prune'] = entry.trim().split('@');
+        if (!scenario) throw new Error(`invalid scenario entry: ${entry}`);
+        if (variant !== 'prune' && variant !== 'retain') {
+            throw new Error(`scenario variant must be prune or retain: ${entry}`);
+        }
+        return { scenario, pruneDeletedQueues: variant === 'prune' };
+    });
+};
+
+const runChild = (run, reportPath, repetition) =>
+    new Promise((resolve, reject) => {
+        const child = spawn(
+            process.execPath,
+            [
+                '--expose-gc',
+                vitestPath,
+                'run',
+                '--config',
+                'vitest.config.ts',
+                '--pool=threads',
+                '--maxWorkers=1',
+                'test/npcLifecycleMemoryProfile.test.ts',
+            ],
+            {
+                cwd: packageRoot,
+                env: {
+                    ...process.env,
+                    NPC_LIFECYCLE_MEMORY_PROFILE: '1',
+                    NPC_LIFECYCLE_MEMORY_SCENARIO: run.scenario,
+                    NPC_LIFECYCLE_MEMORY_PRUNE_DELETED: run.pruneDeletedQueues ? '1' : '0',
+                    NPC_LIFECYCLE_MEMORY_CHILD_REPORT_PATH: reportPath,
+                    NPC_LIFECYCLE_MEMORY_REPETITION: String(repetition),
+                },
+                stdio: 'inherit',
+            }
+        );
+        child.once('error', reject);
+        child.once('exit', (code, signal) => {
+            if (signal) {
+                reject(new Error(`${run.scenario} terminated by ${signal}`));
+            } else if (code !== 0) {
+                reject(new Error(`${run.scenario} exited with code ${code}`));
+            } else {
+                resolve();
+            }
+        });
+    });
+
+const runs = parseRuns();
+const repetitions = Number(process.env.NPC_LIFECYCLE_MEMORY_REPETITIONS ?? 1);
+if (!Number.isSafeInteger(repetitions) || repetitions <= 0) {
+    throw new Error('NPC_LIFECYCLE_MEMORY_REPETITIONS must be a positive integer.');
+}
+const reportPath = path.resolve(
+    packageRoot,
+    process.env.NPC_LIFECYCLE_MEMORY_REPORT_PATH ?? 'test-results/npc-lifecycle-memory.json'
+);
+const temporaryDirectory = mkdtempSync(path.join(tmpdir(), 'sammo-npc-lifecycle-memory-'));
+const reports = [];
+try {
+    for (let repetition = 1; repetition <= repetitions; repetition += 1) {
+        for (const [index, run] of runs.entries()) {
+            const childReportPath = path.join(
+                temporaryDirectory,
+                `${String(repetition).padStart(2, '0')}-${String(index).padStart(2, '0')}.json`
+            );
+            await runChild(run, childReportPath, repetition);
+            reports.push({
+                repetition,
+                ...JSON.parse(readFileSync(childReportPath, 'utf8')),
+            });
+        }
+    }
+    mkdirSync(path.dirname(reportPath), { recursive: true });
+    writeFileSync(
+        reportPath,
+        `${JSON.stringify(
+            {
+                schemaVersion: 1,
+                generatedAt: new Date().toISOString(),
+                inputs: {
+                    cycles: Number(process.env.NPC_LIFECYCLE_MEMORY_CYCLES ?? 80),
+                    batchSize: Number(process.env.NPC_LIFECYCLE_MEMORY_BATCH_SIZE ?? 100),
+                    sampleEvery: Number(process.env.NPC_LIFECYCLE_MEMORY_SAMPLE_EVERY ?? 5),
+                    baseGenerals: Number(process.env.NPC_LIFECYCLE_MEMORY_BASE_GENERALS ?? 1_200),
+                    repetitions,
+                },
+                reports,
+            },
+            null,
+            2
+        )}\n`,
+        'utf8'
+    );
+    console.log(`[npc-lifecycle-memory] wrote ${reports.length} scenario reports to ${reportPath}`);
+} finally {
+    rmSync(temporaryDirectory, { recursive: true, force: true });
+}
diff --git a/app/game-engine/src/turn/cli.ts b/app/game-engine/src/turn/cli.ts
index 9d1128a4..a00b68ca 100644
--- a/app/game-engine/src/turn/cli.ts
+++ b/app/game-engine/src/turn/cli.ts
@@ -96,10 +96,17 @@ export const runTurnDaemonCli = async (options: TurnDaemonCliOptions = {}): Prom
         intervalMs: memoryReportIntervalMs,
         getContext: () => {
             const state = runtime.world.getState();
+            const queueCounts = runtime.reservedTurns?.getQueueCounts();
             return {
                 year: state.currentYear,
                 month: state.currentMonth,
                 ...runtime.world.getEntityCounts(),
+                ...(queueCounts
+                    ? {
+                          generalTurnQueues: queueCounts.generalQueues,
+                          nationTurnQueues: queueCounts.nationQueues,
+                      }
+                    : {}),
                 lifecycleState: runtime.lifecycle.getStatus().state,
             };
         },
diff --git a/app/game-engine/src/turn/databaseHooks.ts b/app/game-engine/src/turn/databaseHooks.ts
index 9480572f..4ad11556 100644
--- a/app/game-engine/src/turn/databaseHooks.ts
+++ b/app/game-engine/src/turn/databaseHooks.ts
@@ -1787,6 +1787,7 @@ export const createDatabaseTurnHooks = async (
                 world.acknowledgeDirtyState(changes);
                 if (options?.reservedTurns && reservedTurnChanges) {
                     options.reservedTurns.acknowledgeDirtyState(reservedTurnChanges);
+                    options.reservedTurns.pruneDeletedEntityQueues(deletedGenerals, deletedNations);
                 }
                 applyRealtimeReadModelBaseline(readModelBaseline, changes);
                 worldReadModelBaseline = persisted.worldReadModelSignature;
diff --git a/app/game-engine/src/turn/reservedTurnStore.ts b/app/game-engine/src/turn/reservedTurnStore.ts
index 0adfbaa6..b02f0fec 100644
--- a/app/game-engine/src/turn/reservedTurnStore.ts
+++ b/app/game-engine/src/turn/reservedTurnStore.ts
@@ -105,6 +105,17 @@ export interface InMemoryReservedTurnStateSnapshot {
     leasedNationKeys: string[];
 }
 
+export interface ReservedTurnQueueCounts {
+    generalQueues: number;
+    nationQueues: number;
+    dirtyGeneralQueues: number;
+    dirtyNationQueues: number;
+    pendingGeneralInitializations: number;
+    pendingNationInitializations: number;
+    leasedGeneralQueues: number;
+    leasedNationQueues: number;
+}
+
 export class ReservedTurnLeaseConflictError extends Error {
     constructor(readonly queueKey: string) {
         super(`Reserved turn queue lease conflict: ${queueKey}.`);
@@ -189,6 +200,64 @@ export class InMemoryReservedTurnStore {
         return this.captureState();
     }
 
+    getQueueCounts(): ReservedTurnQueueCounts {
+        return {
+            generalQueues: this.generalTurns.size,
+            nationQueues: this.nationTurns.size,
+            dirtyGeneralQueues: this.dirtyGeneralIds.size,
+            dirtyNationQueues: this.dirtyNationKeys.size,
+            pendingGeneralInitializations: this.pendingGeneralInitializationIds.size,
+            pendingNationInitializations: this.pendingNationInitializationKeys.size,
+            leasedGeneralQueues: this.leasedGeneralIds.size,
+            leasedNationQueues: this.leasedNationKeys.size,
+        };
+    }
+
+    /**
+     * Drops queues whose owning rows were deleted by a successful world flush.
+     * The daemon calls this inside EngineStateManager.transaction(), so a later
+     * failure still restores these maps and journals from the transaction savepoint.
+     */
+    pruneDeletedEntityQueues(
+        generalIds: readonly number[],
+        nationIds: readonly number[]
+    ): { generalQueues: number; nationQueues: number } {
+        let generalQueues = 0;
+        for (const generalId of new Set(generalIds)) {
+            if (this.generalTurns.delete(generalId)) {
+                generalQueues += 1;
+            }
+            this.dirtyGeneralIds.delete(generalId);
+            this.pendingGeneralInitializationIds.delete(generalId);
+            this.leasedGeneralIds.delete(generalId);
+        }
+
+        const deletedNations = new Set(nationIds);
+        let nationQueues = 0;
+        const pruneNationKeys = (keys: Iterable<string>, remove: (key: string) => boolean | void): void => {
+            for (const key of keys) {
+                const nationId = Number(key.split(':', 1)[0]);
+                if (deletedNations.has(nationId) && remove(key) !== false) {
+                    nationQueues += 1;
+                }
+            }
+        };
+        pruneNationKeys(Array.from(this.nationTurns.keys()), (key) => this.nationTurns.delete(key));
+        for (const keys of [
+            this.dirtyNationKeys,
+            this.pendingNationInitializationKeys,
+            this.leasedNationKeys,
+        ]) {
+            for (const key of Array.from(keys)) {
+                const nationId = Number(key.split(':', 1)[0]);
+                if (deletedNations.has(nationId)) {
+                    keys.delete(key);
+                }
+            }
+        }
+        return { generalQueues, nationQueues };
+    }
+
     inspectGeneralTurnActivity(): Array<[number, boolean]> {
         return Array.from(this.generalTurns, ([generalId, turns]) => [
             generalId,
diff --git a/app/game-engine/src/turn/turnDaemon.ts b/app/game-engine/src/turn/turnDaemon.ts
index c6d3cc69..a05e43e3 100644
--- a/app/game-engine/src/turn/turnDaemon.ts
+++ b/app/game-engine/src/turn/turnDaemon.ts
@@ -41,7 +41,7 @@ import {
 } from './monthlyNationStatsHandler.js';
 import { createFrontStateHandler } from './frontStateHandler.js';
 import { createReservedTurnHandler } from './reservedTurnHandler.js';
-import { createReservedTurnStore } from './reservedTurnStore.js';
+import { createReservedTurnStore, type InMemoryReservedTurnStore } from './reservedTurnStore.js';
 import { createTurnDaemonCommandHandler } from './worldCommandHandler.js';
 import { loadTurnCommandProfile } from './turnCommandProfile.js';
 import { loadTurnWorldFromDatabase } from './worldLoader.js';
@@ -132,6 +132,7 @@ export interface TurnDaemonRuntime {
     stateStore: InMemoryTurnStateStore;
     stateManager: EngineStateManager;
     processor: InMemoryTurnProcessor;
+    reservedTurns: InMemoryReservedTurnStore | null;
     hooks?: TurnDaemonHooks;
     close(): Promise<void>;
 }
@@ -1012,6 +1013,7 @@ const createTurnDaemonRuntimeWithLease = async (
         stateStore,
         stateManager,
         processor,
+        reservedTurns: reservedTurnStoreHandle?.store ?? null,
         hooks,
         close,
     };
diff --git a/app/game-engine/src/turn/turnDaemonMemoryReporter.ts b/app/game-engine/src/turn/turnDaemonMemoryReporter.ts
index 0662ee1f..e41b8d35 100644
--- a/app/game-engine/src/turn/turnDaemonMemoryReporter.ts
+++ b/app/game-engine/src/turn/turnDaemonMemoryReporter.ts
@@ -8,6 +8,8 @@ export interface TurnDaemonMemoryContext {
     nations: number;
     troops: number;
     events: number;
+    generalTurnQueues?: number;
+    nationTurnQueues?: number;
     lifecycleState: string;
 }
 
@@ -48,6 +50,10 @@ export const buildTurnDaemonMemoryReport = (
         `nations=${context.nations}`,
         `troops=${context.troops}`,
         `events=${context.events}`,
+        ...(context.generalTurnQueues === undefined
+            ? []
+            : [`generalTurnQueues=${context.generalTurnQueues}`]),
+        ...(context.nationTurnQueues === undefined ? [] : [`nationTurnQueues=${context.nationTurnQueues}`]),
         `lifecycle=${context.lifecycleState}`,
     ].join(' ');
     return { message, warning: heapRatio >= HEAP_WARNING_RATIO };
diff --git a/app/game-engine/test/generalTurnLifecyclePersistence.integration.test.ts b/app/game-engine/test/generalTurnLifecyclePersistence.integration.test.ts
index 8be37696..581f8db7 100644
--- a/app/game-engine/test/generalTurnLifecyclePersistence.integration.test.ts
+++ b/app/game-engine/test/generalTurnLifecyclePersistence.integration.test.ts
@@ -474,6 +474,12 @@ integration('general turn lifecycle persistence', () => {
             events: [],
             initialEvents: [],
         };
+        const reservedTurns = new InMemoryReservedTurnStore(db, {
+            maxGeneralTurns: 3,
+            maxNationTurns: 3,
+        });
+        reservedTurns.ensureGeneralTurns(general.id);
+        expect(reservedTurns.getQueueCounts().generalQueues).toBe(1);
         const world = new InMemoryTurnWorld(state, snapshot, {
             schedule: { entries: [{ startMinute: 0, tickMinutes: 10 }] },
             generalTurnHandler: {
@@ -517,7 +523,7 @@ integration('general turn lifecycle persistence', () => {
         });
 
         world.executeGeneralTurn(world.getGeneralById(general.id)!);
-        const hooks = await createDatabaseTurnHooks(databaseUrl!, world);
+        const hooks = await createDatabaseTurnHooks(databaseUrl!, world, { reservedTurns });
         try {
             await hooks.hooks.flushChanges?.({
                 lastTurnTime: state.lastTurnTime.toISOString(),
@@ -529,6 +535,10 @@ integration('general turn lifecycle persistence', () => {
         } finally {
             await hooks.close();
         }
+        expect(reservedTurns.getQueueCounts()).toMatchObject({
+            generalQueues: 0,
+            pendingGeneralInitializations: 0,
+        });
 
         const archived = await db.oldGeneral.findUniqueOrThrow({
             where: { by_no: { serverId, generalNo: general.id } },
diff --git a/app/game-engine/test/helpers/npcLifecycleMemoryProfiler.ts b/app/game-engine/test/helpers/npcLifecycleMemoryProfiler.ts
new file mode 100644
index 00000000..e693e819
--- /dev/null
+++ b/app/game-engine/test/helpers/npcLifecycleMemoryProfiler.ts
@@ -0,0 +1,210 @@
+import { performance } from 'node:perf_hooks';
+import { serialize } from 'node:v8';
+
+import type { InMemoryTurnWorld } from '../../src/turn/inMemoryWorld.js';
+import type {
+    InMemoryReservedTurnStore,
+    ReservedTurnQueueCounts,
+} from '../../src/turn/reservedTurnStore.js';
+
+export type NpcLifecycleMemoryScenario =
+    | 'steady-state'
+    | 'growth'
+    | 'death-drain'
+    | 'balanced-churn'
+    | 'rollback-churn';
+
+export interface ProcessMemorySnapshot {
+    rssBytes: number;
+    heapTotalBytes: number;
+    heapUsedBytes: number;
+    externalBytes: number;
+    arrayBuffersBytes: number;
+}
+
+export interface NpcLifecycleMemorySample {
+    cycle: number;
+    phase: 'initial' | 'in-transaction' | 'post-flush';
+    elapsedMs: number;
+    liveGeneralCount: number;
+    queueCounts: ReservedTurnQueueCounts;
+    process: ProcessMemorySnapshot;
+    pending?: {
+        createdGenerals: number;
+        deletedGenerals: number;
+        lifecycleEvents: number;
+        reservedGeneralQueues: number;
+    };
+    snapshot?: {
+        worldBytes: number;
+        reservedTurnBytes: number;
+        totalBytes: number;
+        cloneAndSerializeMs: number;
+        heapUsedAfterReleaseBytes: number;
+    };
+}
+
+export const readProcessMemory = (): ProcessMemorySnapshot => {
+    const usage = process.memoryUsage();
+    return {
+        rssBytes: usage.rss,
+        heapTotalBytes: usage.heapTotal,
+        heapUsedBytes: usage.heapUsed,
+        externalBytes: usage.external,
+        arrayBuffersBytes: usage.arrayBuffers,
+    };
+};
+
+export const linearRegressionSlope = (points: ReadonlyArray<{ x: number; y: number }>): number => {
+    if (points.length < 2) {
+        return 0;
+    }
+    const meanX = points.reduce((sum, point) => sum + point.x, 0) / points.length;
+    const meanY = points.reduce((sum, point) => sum + point.y, 0) / points.length;
+    let numerator = 0;
+    let denominator = 0;
+    for (const point of points) {
+        const xDelta = point.x - meanX;
+        numerator += xDelta * (point.y - meanY);
+        denominator += xDelta * xDelta;
+    }
+    return denominator === 0 ? 0 : numerator / denominator;
+};
+
+export const captureLifecycleMemorySample = (input: {
+    world: InMemoryTurnWorld;
+    reservedTurns: InMemoryReservedTurnStore;
+    startedAtMs: number;
+    cycle: number;
+    phase: NpcLifecycleMemorySample['phase'];
+    includePending: boolean;
+    includeSnapshot: boolean;
+}): NpcLifecycleMemorySample => {
+    globalThis.gc?.();
+    const processSnapshot = readProcessMemory();
+    const pending = input.includePending
+        ? (() => {
+              const worldChanges = input.world.peekDirtyState();
+              const reservedChanges = input.reservedTurns.peekDirtyState();
+              return {
+                  createdGenerals: worldChanges.createdGenerals.length,
+                  deletedGenerals: worldChanges.deletedGenerals.length,
+                  lifecycleEvents: worldChanges.lifecycleEvents.length,
+                  reservedGeneralQueues: reservedChanges.generalIds.length,
+              };
+          })()
+        : undefined;
+    const sample: NpcLifecycleMemorySample = {
+        cycle: input.cycle,
+        phase: input.phase,
+        elapsedMs: performance.now() - input.startedAtMs,
+        liveGeneralCount: input.world.getEntityCounts().generals,
+        queueCounts: input.reservedTurns.getQueueCounts(),
+        process: processSnapshot,
+        ...(pending ? { pending } : {}),
+    };
+    if (input.includeSnapshot) {
+        const snapshotMetrics = (() => {
+            const snapshotStartedAt = performance.now();
+            const worldSnapshot = input.world.captureState();
+            const reservedSnapshot = input.reservedTurns.captureTransactionState();
+            const worldBytes = serialize(worldSnapshot).byteLength;
+            const reservedTurnBytes = serialize(reservedSnapshot).byteLength;
+            return {
+                worldBytes,
+                reservedTurnBytes,
+                cloneAndSerializeMs: performance.now() - snapshotStartedAt,
+            };
+        })();
+        globalThis.gc?.();
+        sample.snapshot = {
+            ...snapshotMetrics,
+            totalBytes: snapshotMetrics.worldBytes + snapshotMetrics.reservedTurnBytes,
+            heapUsedAfterReleaseBytes: readProcessMemory().heapUsedBytes,
+        };
+    }
+    return sample;
+};
+
+const maxValue = (values: readonly number[]): number => Math.max(0, ...values);
+
+export const buildNpcLifecycleMemoryReport = (input: {
+    scenario: NpcLifecycleMemoryScenario;
+    pruneDeletedQueues: boolean;
+    initialGeneralCount: number;
+    cycles: number;
+    batchSize: number;
+    sampleEvery: number;
+    createdTotal: number;
+    deletedTotal: number;
+    rolledBackCycles: number;
+    startedAtMs: number;
+    samples: NpcLifecycleMemorySample[];
+}) => {
+    const retained = input.samples.filter(
+        (sample) => sample.phase === 'initial' || sample.phase === 'post-flush'
+    );
+    const warmSampleIndex = Math.floor(retained.length / 3);
+    const trendSamples = retained.slice(warmSampleIndex);
+    const first = retained[0];
+    const final = retained.at(-1);
+    const heapSlope = linearRegressionSlope(
+        trendSamples.map((sample) => ({ x: sample.cycle, y: sample.process.heapUsedBytes }))
+    );
+    const snapshotSlope = linearRegressionSlope(
+        trendSamples.flatMap((sample) =>
+            sample.snapshot ? [{ x: sample.cycle, y: sample.snapshot.totalBytes }] : []
+        )
+    );
+    const queueSlope = linearRegressionSlope(
+        trendSamples.map((sample) => ({ x: sample.cycle, y: sample.queueCounts.generalQueues }))
+    );
+    const lifecycleOperations = input.createdTotal + input.deletedTotal;
+
+    return {
+        schemaVersion: 1,
+        runtime: {
+            node: process.version,
+            platform: process.platform,
+            arch: process.arch,
+            explicitGc: typeof globalThis.gc === 'function',
+        },
+        scenario: {
+            name: input.scenario,
+            pruneDeletedQueues: input.pruneDeletedQueues,
+            initialGeneralCount: input.initialGeneralCount,
+            cycles: input.cycles,
+            batchSize: input.batchSize,
+            sampleEvery: input.sampleEvery,
+        },
+        result: {
+            createdTotal: input.createdTotal,
+            deletedTotal: input.deletedTotal,
+            rolledBackCycles: input.rolledBackCycles,
+            finalGeneralCount: final?.liveGeneralCount ?? 0,
+            finalGeneralQueueCount: final?.queueCounts.generalQueues ?? 0,
+            deadQueueRetentionCount:
+                (final?.queueCounts.generalQueues ?? 0) - (final?.liveGeneralCount ?? 0),
+            wallDurationMs: performance.now() - input.startedAtMs,
+        },
+        memory: {
+            retainedHeapStartBytes: first?.process.heapUsedBytes ?? 0,
+            retainedHeapFinalBytes: final?.process.heapUsedBytes ?? 0,
+            retainedHeapDeltaBytes:
+                (final?.process.heapUsedBytes ?? 0) - (first?.process.heapUsedBytes ?? 0),
+            retainedHeapSlopeBytesPerCycle: heapSlope,
+            retainedHeapSlopeBytesPerLifecycleOperation:
+                lifecycleOperations === 0 ? 0 : (heapSlope * input.cycles) / lifecycleOperations,
+            retainedSnapshotStartBytes: first?.snapshot?.totalBytes ?? 0,
+            retainedSnapshotFinalBytes: final?.snapshot?.totalBytes ?? 0,
+            retainedSnapshotDeltaBytes:
+                (final?.snapshot?.totalBytes ?? 0) - (first?.snapshot?.totalBytes ?? 0),
+            retainedSnapshotSlopeBytesPerCycle: snapshotSlope,
+            generalQueueSlopePerCycle: queueSlope,
+            maxObservedHeapUsedBytes: maxValue(input.samples.map((sample) => sample.process.heapUsedBytes)),
+            maxObservedRssBytes: maxValue(input.samples.map((sample) => sample.process.rssBytes)),
+            processResourceMaxRssBytes: process.resourceUsage().maxRSS * 1024,
+        },
+        samples: input.samples,
+    };
+};
diff --git a/app/game-engine/test/npcLifecycleMemoryProfile.test.ts b/app/game-engine/test/npcLifecycleMemoryProfile.test.ts
new file mode 100644
index 00000000..36399831
--- /dev/null
+++ b/app/game-engine/test/npcLifecycleMemoryProfile.test.ts
@@ -0,0 +1,388 @@
+import { mkdirSync, writeFileSync } from 'node:fs';
+import { dirname, resolve } from 'node:path';
+import { performance } from 'node:perf_hooks';
+
+import { buildScenarioBootstrap, type TurnSchedule } from '@sammo-ts/logic';
+import { describe, expect, it } from 'vitest';
+
+import { loadMapDefinitionByName } from '../src/scenario/mapLoader.js';
+import { loadScenarioDefinitionById } from '../src/scenario/scenarioLoader.js';
+import { loadUnitSetDefinitionByName } from '../src/scenario/unitSetLoader.js';
+import { EngineStateManager } from '../src/turn/engineStateManager.js';
+import { InMemoryTurnWorld } from '../src/turn/inMemoryWorld.js';
+import { InMemoryReservedTurnStore } from '../src/turn/reservedTurnStore.js';
+import type { TurnGeneral, TurnWorldSnapshot, TurnWorldState } from '../src/turn/types.js';
+import {
+    buildNpcLifecycleMemoryReport,
+    captureLifecycleMemorySample,
+    type NpcLifecycleMemorySample,
+    type NpcLifecycleMemoryScenario,
+} from './helpers/npcLifecycleMemoryProfiler.js';
+
+const profileEnabled = process.env.NPC_LIFECYCLE_MEMORY_PROFILE === '1';
+const profileDescribe = describe.runIf(profileEnabled);
+const SCENARIO_ID = 2601;
+const HIDDEN_SEED = 'scenario-2601-npc-lifecycle-memory-v1';
+const ROLLBACK_SENTINEL = new Error('npc-lifecycle-memory-rollback');
+const VALID_SCENARIOS = new Set<NpcLifecycleMemoryScenario>([
+    'steady-state',
+    'growth',
+    'death-drain',
+    'balanced-churn',
+    'rollback-churn',
+]);
+
+const readPositiveInteger = (name: string, fallback: number): number => {
+    const raw = process.env[name];
+    if (raw === undefined) {
+        return fallback;
+    }
+    const value = Number(raw);
+    if (!Number.isSafeInteger(value) || value <= 0) {
+        throw new Error(`${name} must be a positive integer: ${raw}`);
+    }
+    return value;
+};
+
+const createGameDate = (year: number, month: number): Date => {
+    const date = new Date(0);
+    date.setUTCFullYear(year, month - 1, 1);
+    date.setUTCHours(0, 0, 0, 0);
+    return date;
+};
+
+const buildTurnGeneral = (
+    domainGeneral: ReturnType<typeof buildScenarioBootstrap>['snapshot']['generals'][number],
+    seedGeneral: ReturnType<typeof buildScenarioBootstrap>['seed']['generals'][number],
+    startTime: Date,
+    startYear: number,
+    startMonth: number
+): TurnGeneral => {
+    const deathMonthRaw = seedGeneral.meta.deathMonth;
+    const deathMonth =
+        typeof deathMonthRaw === 'number' && Number.isInteger(deathMonthRaw) ? deathMonthRaw : startMonth;
+    const killturn = Math.max(0, (seedGeneral.deathYear - startYear) * 12 + deathMonth - startMonth);
+    return {
+        ...domainGeneral,
+        userId: null,
+        bornYear: seedGeneral.birthYear,
+        deadYear: seedGeneral.deathYear,
+        affinity: seedGeneral.affinity,
+        picture: seedGeneral.picture === null ? null : String(seedGeneral.picture),
+        startAge: 20,
+        turnTime: new Date(startTime),
+        recentWarTime: null,
+        lastTurn: { command: '휴식' },
+        penalty: {},
+        inheritancePoints: {},
+        meta: {
+            ...domainGeneral.meta,
+            ...seedGeneral.meta,
+            killturn,
+            npcType: seedGeneral.npcType,
+            crewTypeId: seedGeneral.crewTypeId,
+        },
+    };
+};
+
+const cloneNpcGeneral = (source: TurnGeneral, id: number): TurnGeneral => {
+    const cloned = structuredClone(source);
+    return {
+        ...cloned,
+        id,
+        name: `${source.name}#M${id}`,
+        userId: null,
+        npcState: Math.max(2, source.npcState),
+        nationId: 0,
+        cityId: 0,
+        troopId: 0,
+        officerLevel: 0,
+        meta: {
+            ...cloned.meta,
+            lifecycleMemoryFixture: true,
+        },
+    };
+};
+
+const createProfileWorld = async (initialGeneralCount: number) => {
+    const scenario = await loadScenarioDefinitionById(SCENARIO_ID);
+    const map = await loadMapDefinitionByName(scenario.config.environment.mapName);
+    const unitSet = await loadUnitSetDefinitionByName(scenario.config.environment.unitSet);
+    const startYear = scenario.startYear ?? 180;
+    const startMonth = 1;
+    const startTime = createGameDate(startYear, startMonth);
+    const bootstrap = buildScenarioBootstrap({
+        scenario,
+        map,
+        unitSet,
+        options: {
+            hiddenSeed: HIDDEN_SEED,
+            initialYear: startYear,
+            initialMonth: startMonth,
+            turnTermMinutes: 10,
+            includeNeutralNationInSeed: true,
+        },
+    });
+    if (bootstrap.warnings.length > 0) {
+        throw new Error(`scenario bootstrap warnings: ${bootstrap.warnings.join(', ')}`);
+    }
+    const domainGeneralById = new Map(bootstrap.snapshot.generals.map((general) => [general.id, general]));
+    const scenarioGenerals = bootstrap.seed.generals.map((seedGeneral) => {
+        const domainGeneral = domainGeneralById.get(seedGeneral.id);
+        if (!domainGeneral) {
+            throw new Error(`missing scenario general: ${seedGeneral.id}`);
+        }
+        return buildTurnGeneral(domainGeneral, seedGeneral, startTime, startYear, startMonth);
+    });
+    const generals = Array.from({ length: initialGeneralCount }, (_, index) =>
+        cloneNpcGeneral(scenarioGenerals[index % scenarioGenerals.length]!, index + 1)
+    );
+    const snapshot: TurnWorldSnapshot = {
+        scenarioConfig: bootstrap.snapshot.scenarioConfig,
+        scenarioMeta: bootstrap.snapshot.scenarioMeta,
+        worldConfig: {
+            fiction: scenario.fiction,
+            npcMode: 2,
+            turnTermMinutes: 10,
+            tournamentTrig: false,
+        },
+        map,
+        unitSet,
+        generals,
+        cities: bootstrap.snapshot.cities,
+        nations: bootstrap.snapshot.nations,
+        troops: bootstrap.snapshot.troops,
+        diplomacy: bootstrap.snapshot.diplomacy.map((entry) => ({
+            fromNationId: entry.fromNationId,
+            toNationId: entry.toNationId,
+            state: entry.state,
+            term: entry.durationMonths,
+            dead: 0,
+            meta: {},
+        })),
+        events: [],
+        initialEvents: [],
+    };
+    const state: TurnWorldState = {
+        id: 1,
+        currentYear: startYear,
+        currentMonth: startMonth,
+        tickSeconds: 600,
+        lastTurnTime: startTime,
+        clockBaseTime: startTime,
+        clockTick: 0,
+        clockMode: 'manual',
+        clockWallAnchor: startTime,
+        lastTurnTick: 0,
+        meta: {
+            scenarioId: SCENARIO_ID,
+            hiddenSeed: HIDDEN_SEED,
+            killturn: 480,
+            lastGeneralId: initialGeneralCount,
+            serverId: 'npc-lifecycle-memory-profile',
+        },
+    };
+    const schedule: TurnSchedule = { entries: [{ startMinute: 0, tickMinutes: 10 }] };
+    const world = new InMemoryTurnWorld(state, snapshot, { schedule });
+    const reservedTurns = new InMemoryReservedTurnStore({} as never, {
+        maxGeneralTurns: 30,
+        maxNationTurns: 12,
+        leaseOwner: 'npc-lifecycle-memory-profile',
+    });
+    for (const general of generals) {
+        reservedTurns.getGeneralTurns(general.id);
+    }
+    return { world, reservedTurns, templateGenerals: scenarioGenerals };
+};
+
+profileDescribe('NPC 생성·사망 장기 구동 메모리 프로파일', () => {
+    it('격리 시나리오의 GC 안정 heap, rollback snapshot과 예약 큐 보유량을 기록한다', async () => {
+        expect(typeof globalThis.gc).toBe('function');
+        const rawScenario = process.env.NPC_LIFECYCLE_MEMORY_SCENARIO ?? 'balanced-churn';
+        if (!VALID_SCENARIOS.has(rawScenario as NpcLifecycleMemoryScenario)) {
+            throw new Error(`unknown NPC lifecycle memory scenario: ${rawScenario}`);
+        }
+        const scenario = rawScenario as NpcLifecycleMemoryScenario;
+        const cycles = readPositiveInteger('NPC_LIFECYCLE_MEMORY_CYCLES', 80);
+        const batchSize = readPositiveInteger('NPC_LIFECYCLE_MEMORY_BATCH_SIZE', 100);
+        const sampleEvery = readPositiveInteger('NPC_LIFECYCLE_MEMORY_SAMPLE_EVERY', 5);
+        const baseGeneralCount = readPositiveInteger('NPC_LIFECYCLE_MEMORY_BASE_GENERALS', 1_200);
+        const pruneDeletedQueues = process.env.NPC_LIFECYCLE_MEMORY_PRUNE_DELETED === '1';
+        const initialGeneralCount =
+            scenario === 'death-drain' ? baseGeneralCount + cycles * batchSize : baseGeneralCount;
+        const { world, reservedTurns, templateGenerals } = await createProfileWorld(initialGeneralCount);
+        const stateManager = new EngineStateManager();
+        stateManager.register('world', {
+            capture: () => world.captureState(),
+            restore: (snapshot) => world.restoreState(snapshot),
+        });
+        stateManager.register('reservedTurns', {
+            capture: () => reservedTurns.captureTransactionState(),
+            restore: (snapshot) => reservedTurns.restoreState(snapshot),
+        });
+
+        const startedAtMs = performance.now();
+        const samples: NpcLifecycleMemorySample[] = [
+            captureLifecycleMemorySample({
+                world,
+                reservedTurns,
+                startedAtMs,
+                cycle: 0,
+                phase: 'initial',
+                includePending: false,
+                includeSnapshot: true,
+            }),
+        ];
+        const activeGeneralIds = world
+            .listGenerals()
+            .map((general) => general.id)
+            .sort((left, right) => left - right);
+        let nextGeneralId = Math.max(...activeGeneralIds) + 1;
+        let createdTotal = 0;
+        let deletedTotal = 0;
+        let rolledBackCycles = 0;
+
+        const addGenerals = (count: number): void => {
+            for (let index = 0; index < count; index += 1) {
+                const generalId = nextGeneralId++;
+                const source = templateGenerals[(generalId - 1) % templateGenerals.length]!;
+                if (!world.addGeneral(cloneNpcGeneral(source, generalId))) {
+                    throw new Error(`failed to add profile general ${generalId}`);
+                }
+                reservedTurns.ensureGeneralTurns(generalId);
+                activeGeneralIds.push(generalId);
+                createdTotal += 1;
+            }
+        };
+        const deleteGenerals = (count: number): void => {
+            const targetIds = activeGeneralIds.splice(0, count);
+            for (const generalId of targetIds) {
+                if (!world.deleteGeneralWithLifecycle(generalId, 180, 1)) {
+                    throw new Error(`failed to delete profile general ${generalId}`);
+                }
+                deletedTotal += 1;
+            }
+        };
+
+        for (let cycle = 1; cycle <= cycles; cycle += 1) {
+            const sampledCycle = cycle % sampleEvery === 0 || cycle === cycles;
+            try {
+                await stateManager.transaction(() => {
+                    if (scenario === 'steady-state') {
+                        for (let index = 0; index < batchSize; index += 1) {
+                            const generalId = activeGeneralIds[((cycle - 1) * batchSize + index) % activeGeneralIds.length]!;
+                            const current = world.getGeneralById(generalId);
+                            if (!current) {
+                                throw new Error(`missing steady-state general ${generalId}`);
+                            }
+                            world.updateGeneral(generalId, { experience: current.experience + 1 });
+                            reservedTurns.shiftGeneralTurns(generalId, -1);
+                        }
+                    } else if (scenario === 'growth') {
+                        addGenerals(batchSize);
+                    } else if (scenario === 'death-drain') {
+                        deleteGenerals(batchSize);
+                    } else if (scenario === 'balanced-churn') {
+                        deleteGenerals(batchSize);
+                        addGenerals(batchSize);
+                    } else {
+                        addGenerals(batchSize);
+                        deleteGenerals(batchSize);
+                    }
+
+                    if (sampledCycle) {
+                        samples.push(
+                            captureLifecycleMemorySample({
+                                world,
+                                reservedTurns,
+                                startedAtMs,
+                                cycle,
+                                phase: 'in-transaction',
+                                includePending: true,
+                                includeSnapshot: false,
+                            })
+                        );
+                    }
+                    if (scenario === 'rollback-churn') {
+                        throw ROLLBACK_SENTINEL;
+                    }
+
+                    const worldChanges = world.peekDirtyState();
+                    const reservedChanges = reservedTurns.peekDirtyState();
+                    world.acknowledgeDirtyState(worldChanges);
+                    reservedTurns.acknowledgeDirtyState(reservedChanges);
+                    if (pruneDeletedQueues) {
+                        reservedTurns.pruneDeletedEntityQueues(
+                            worldChanges.deletedGenerals,
+                            worldChanges.deletedNations
+                        );
+                    }
+                });
+            } catch (error) {
+                if (scenario !== 'rollback-churn' || error !== ROLLBACK_SENTINEL) {
+                    throw error;
+                }
+                rolledBackCycles += 1;
+                activeGeneralIds.splice(0, activeGeneralIds.length, ...world.listGenerals().map((general) => general.id));
+            }
+
+            if (sampledCycle) {
+                samples.push(
+                    captureLifecycleMemorySample({
+                        world,
+                        reservedTurns,
+                        startedAtMs,
+                        cycle,
+                        phase: 'post-flush',
+                        includePending: true,
+                        includeSnapshot: true,
+                    })
+                );
+            }
+        }
+
+        const report = buildNpcLifecycleMemoryReport({
+            scenario,
+            pruneDeletedQueues,
+            initialGeneralCount,
+            cycles,
+            batchSize,
+            sampleEvery,
+            createdTotal,
+            deletedTotal,
+            rolledBackCycles,
+            startedAtMs,
+            samples,
+        });
+        const reportPath = resolve(
+            process.env.NPC_LIFECYCLE_MEMORY_CHILD_REPORT_PATH ??
+                `test-results/npc-lifecycle-memory-${scenario}.json`
+        );
+        mkdirSync(dirname(reportPath), { recursive: true });
+        writeFileSync(reportPath, `${JSON.stringify(report, null, 2)}\n`, 'utf8');
+        console.log(
+            `[NPC_LIFECYCLE_MEMORY_REPORT]${JSON.stringify({
+                reportPath,
+                scenario: report.scenario,
+                result: report.result,
+                memory: report.memory,
+            })}`
+        );
+
+        const expectedFinalGeneralCount =
+            scenario === 'growth'
+                ? initialGeneralCount + cycles * batchSize
+                : scenario === 'death-drain'
+                  ? baseGeneralCount
+                  : initialGeneralCount;
+        expect(report.result.finalGeneralCount).toBe(expectedFinalGeneralCount);
+        expect(report.result.rolledBackCycles).toBe(scenario === 'rollback-churn' ? cycles : 0);
+        if (pruneDeletedQueues || !['death-drain', 'balanced-churn'].includes(scenario)) {
+            expect(report.result.deadQueueRetentionCount).toBe(0);
+        } else {
+            expect(report.result.deadQueueRetentionCount).toBe(cycles * batchSize);
+        }
+        expect(world.peekDirtyState().lifecycleEvents).toHaveLength(0);
+        expect(reservedTurns.peekDirtyState().generalIds).toHaveLength(0);
+    }, 600_000);
+});
diff --git a/app/game-engine/test/npcLifecycleMemoryProfiler.test.ts b/app/game-engine/test/npcLifecycleMemoryProfiler.test.ts
new file mode 100644
index 00000000..b2397ee0
--- /dev/null
+++ b/app/game-engine/test/npcLifecycleMemoryProfiler.test.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest';
+
+import { linearRegressionSlope } from './helpers/npcLifecycleMemoryProfiler.js';
+
+describe('NPC lifecycle memory profiler metrics', () => {
+    it('calculates the retained-byte slope from unevenly spaced samples', () => {
+        expect(
+            linearRegressionSlope([
+                { x: 0, y: 100 },
+                { x: 2, y: 140 },
+                { x: 5, y: 200 },
+            ])
+        ).toBeCloseTo(20, 8);
+    });
+
+    it('returns zero when a trend cannot be established', () => {
+        expect(linearRegressionSlope([])).toBe(0);
+        expect(linearRegressionSlope([{ x: 1, y: 10 }])).toBe(0);
+    });
+});
diff --git a/app/game-engine/test/reservedTurnLease.test.ts b/app/game-engine/test/reservedTurnLease.test.ts
index 981fa82c..a6eb98b3 100644
--- a/app/game-engine/test/reservedTurnLease.test.ts
+++ b/app/game-engine/test/reservedTurnLease.test.ts
@@ -169,6 +169,51 @@ const buildHarness = (initialRevision: RevisionRow | null = null) => {
 };
 
 describe('reserved turn daemon lease', () => {
+    it('prunes deleted general and nation queues together with their journal state', () => {
+        const harness = buildHarness();
+        harness.store.ensureGeneralTurns(7);
+        harness.store.ensureGeneralTurns(8);
+        harness.store.ensureNationTurns(3, 12);
+        harness.store.ensureNationTurns(4, 12);
+
+        expect(harness.store.getQueueCounts()).toMatchObject({
+            generalQueues: 2,
+            nationQueues: 2,
+            pendingGeneralInitializations: 2,
+            pendingNationInitializations: 2,
+        });
+        expect(harness.store.pruneDeletedEntityQueues([7], [3])).toEqual({
+            generalQueues: 1,
+            nationQueues: 1,
+        });
+        expect(harness.store.getQueueCounts()).toMatchObject({
+            generalQueues: 1,
+            nationQueues: 1,
+            pendingGeneralInitializations: 1,
+            pendingNationInitializations: 1,
+        });
+        expect(harness.store.getGeneralTurns(8)).toHaveLength(2);
+        expect(harness.store.getNationTurns(4, 12)).toHaveLength(1);
+    });
+
+    it('restores pruned queues from the transaction savepoint', () => {
+        const harness = buildHarness();
+        harness.store.ensureGeneralTurns(7);
+        harness.store.ensureNationTurns(3, 12);
+        const savepoint = harness.store.captureTransactionState();
+
+        harness.store.pruneDeletedEntityQueues([7], [3]);
+        expect(harness.store.getQueueCounts()).toMatchObject({ generalQueues: 0, nationQueues: 0 });
+
+        harness.store.restoreState(savepoint);
+        expect(harness.store.getQueueCounts()).toMatchObject({
+            generalQueues: 1,
+            nationQueues: 1,
+            pendingGeneralInitializations: 1,
+            pendingNationInitializations: 1,
+        });
+    });
+
     it('holds the queue lease from refresh through shift and releases it with the revision increment', async () => {
         const harness = buildHarness();
 
diff --git a/app/game-engine/test/turnDaemonMemoryReporter.test.ts b/app/game-engine/test/turnDaemonMemoryReporter.test.ts
index 7d3ff937..a2f27105 100644
--- a/app/game-engine/test/turnDaemonMemoryReporter.test.ts
+++ b/app/game-engine/test/turnDaemonMemoryReporter.test.ts
@@ -10,6 +10,8 @@ const context = {
     nations: 3,
     troops: 15,
     events: 4,
+    generalTurnQueues: 2461,
+    nationTurnQueues: 18,
     lifecycleState: 'paused',
 };
 
@@ -33,6 +35,7 @@ describe('turn daemon memory reporting', () => {
         expect(result.message).toContain('profile=hwe reason=interval');
         expect(result.message).toContain('heapLimitMiB=3072');
         expect(result.message).toContain('year=214 month=12 generals=2461');
+        expect(result.message).toContain('generalTurnQueues=2461 nationTurnQueues=18');
         expect(result.message).toContain('lifecycle=paused');
     });
 
diff --git a/docs/architecture/npc-lifecycle-memory-profile.md b/docs/architecture/npc-lifecycle-memory-profile.md
new file mode 100644
index 00000000..601143ab
--- /dev/null
+++ b/docs/architecture/npc-lifecycle-memory-profile.md
@@ -0,0 +1,106 @@
+# NPC 생명주기 메모리 프로파일
+
+## 목적과 해석 경계
+
+턴 데몬이 오래 실행될 때의 안정 상태와 NPC 생성·사망 churn을 서로 분리해
+측정한다. 각 case는 별도 Node/Vitest worker에서 실행하며 명시적 GC 뒤의
+retained heap, RSS, rollback participant의 V8 직렬화 크기, 실제 live 장수 수와
+예약 턴 큐 수를 기록한다.
+
+이 프로파일은 `scenario_2601`의 실제 장수 shape, `InMemoryTurnWorld`,
+`InMemoryReservedTurnStore`, `EngineStateManager.transaction()`과 flush 뒤
+acknowledgement를 사용한다. PostgreSQL/Redis I/O, 실제 NPC AI·전투·월간 event,
+다른 PM2 process와 allocator/cgroup 경합은 포함하지 않는다. 따라서 heap과
+snapshot은 엔진 상태 보유량 비교에 사용하고 RSS는 동일 host의 보조 high-water로만
+해석한다.
+
+## 시나리오
+
+| 이름 | 고정 조건 | 확인하는 위험 |
+| --- | --- | --- |
+| `steady-state` | 1,200명, 매 cycle 100명 update/예약 턴 shift, 생성·사망 0 | 장기 transaction/flush 자체의 retained heap drift |
+| `growth` | 1,200명에서 cycle마다 100명 생성 | live NPC 1명당 world+예약 큐 증가량 |
+| `death-drain` | 종료 시 1,200명이 되도록 큰 roster에서 cycle마다 100명 사망 | 사망 뒤 world와 예약 큐가 실제로 줄어드는지 |
+| `balanced-churn` | 1,200명을 유지하면서 cycle마다 100명 사망+100명 생성 | live 수가 일정해도 과거 ID/queue가 남는 누수 |
+| `rollback-churn` | cycle마다 100명 생성+사망 후 강제 실패 | rollback snapshot 복원 뒤 retained state drift |
+
+`death-drain`과 `balanced-churn`은 `retain`과 `prune`을 같은 입력으로 A/B
+실행할 수 있다. `retain`은 수정 전처럼 삭제된 예약 큐를 남기는 비교 모드이고,
+`prune`은 PostgreSQL world flush 성공 뒤 삭제된 장수·국가 큐를 제거하는 현재
+제품 경계다. 큐 제거는 `EngineStateManager.transaction()` 안에서 수행되므로 이후
+오류가 발생하면 transaction savepoint가 큐와 journal set까지 복원한다.
+
+## 실행
+
+기본 행렬은 1,200명, 80 cycle, cycle당 100명, 5 cycle 간격 sample이다.
+
+```sh
+NPC_LIFECYCLE_MEMORY_REPORT_PATH=/dev/shm/npc-lifecycle-memory.json \
+pnpm --filter @sammo-ts/game-engine profile:npc-lifecycle-memory
+```
+
+시나리오와 규모를 좁힐 수 있다.
+
+```sh
+NPC_LIFECYCLE_MEMORY_SCENARIOS=balanced-churn@retain,balanced-churn@prune \
+NPC_LIFECYCLE_MEMORY_CYCLES=240 \
+NPC_LIFECYCLE_MEMORY_BATCH_SIZE=100 \
+NPC_LIFECYCLE_MEMORY_SAMPLE_EVERY=15 \
+NPC_LIFECYCLE_MEMORY_BASE_GENERALS=1200 \
+NPC_LIFECYCLE_MEMORY_REPORT_PATH=/dev/shm/npc-lifecycle-memory-churn-240.json \
+pnpm --filter @sammo-ts/game-engine profile:npc-lifecycle-memory
+```
+
+지원 변수:
+
+- `NPC_LIFECYCLE_MEMORY_SCENARIOS`: 쉼표 구분 `name@prune|retain`
+- `NPC_LIFECYCLE_MEMORY_CYCLES`: transaction/flush 반복 횟수
+- `NPC_LIFECYCLE_MEMORY_BATCH_SIZE`: cycle당 update/create/delete 수
+- `NPC_LIFECYCLE_MEMORY_SAMPLE_EVERY`: 명시적 GC와 snapshot sample 간격
+- `NPC_LIFECYCLE_MEMORY_BASE_GENERALS`: steady/growth/churn의 live 기준 수
+- `NPC_LIFECYCLE_MEMORY_REPETITIONS`: 각 독립 case 반복 횟수
+- `NPC_LIFECYCLE_MEMORY_REPORT_PATH`: aggregate JSON 경로
+
+## 2026-08-24 기준 결과
+
+Node v24.18.0, Linux x64 shared 개발 host에서 80×100 행렬을 독립적으로 두 번
+실행했다. 게임 결과에 영향을 주지 않는 profile 수치 중 retained heap delta는
+두 번의 차이가 14 KiB 이내였고 snapshot delta와 최종 queue 수는 정확히
+일치했다.
+
+| case | 최종 live/queue | retained heap delta (run 1/2) | snapshot delta | 해석 |
+| --- | ---: | ---: | ---: | --- |
+| steady 80 | 1,200 / 1,200 | +121,664 / +126,720 B | 0 B | transaction 반복 자체는 안정 |
+| growth 8,000명 | 9,200 / 9,200 | +37,487,264 / +37,494,272 B | +13,807,868 B | live NPC 약 4.69 KiB heap, 1.73 KiB snapshot/명 |
+| death retain | 1,200 / 9,200 | -11,407,296 / -11,393,936 B | -7,450,860 B | world는 줄지만 죽은 큐 8,000개 잔존 |
+| death prune | 1,200 / 1,200 | -37,058,496 / -37,054,712 B | -13,802,736 B | live roster와 queue가 함께 감소 |
+| balanced retain | 1,200 / 9,200 | +25,970,064 / +25,969,504 B | +6,357,008 B | live 수가 같아도 과거 큐가 선형 증가 |
+| balanced prune | 1,200 / 1,200 | +314,464 / +305,984 B | +5,132 B | 8,000명 churn 뒤 dead queue 0 |
+| rollback churn | 1,200 / 1,200 | +1,982,920 / +1,985,664 B | +72,000 B | 80회 강제 rollback 후 live/queue 복원 |
+
+장기 soak도 별도로 실행했다.
+
+- steady 720 cycle: live/queue `1,200/1,200`, heap `+217,192 B`, snapshot `0 B`,
+  후반 slope 약 `182 B/cycle`
+- balanced 24,000명 churn, retain: queue 25,200, heap `+77,121,104 B`,
+  snapshot `+19,063,275 B`
+- 같은 churn, prune: queue 1,200, heap `+321,256 B`, snapshot `+7,400 B`
+
+수정 전 예약 큐 보유량은 churn 1명당 retained heap 약 3.2 KiB, 직렬화된
+transaction participant 약 794 B로 선형 증가했다. 정리 후 두 장기 case에서
+dead queue는 0이며 live 수가 일정한 snapshot은 ID 문자열 길이 차이 외에는
+거의 일정했다.
+
+`growth` 9,200명 sample에서 in-transaction heap은 같은 cycle의 flush 후보다
+최대 약 14.1 MiB 높았다. 현재 world rollback은 live state 전체를 deep clone하므로
+다음 절감 후보는 mutation별 copy-on-write/delta journal이다. 다만 이 변경은
+오류 rollback, RNG와 persistence 재시도 순서에 직접 닿으므로 이번 작업에서는
+예약 큐처럼 소유권이 명확한 항목만 정리하고 world snapshot 구조는 바꾸지 않는다.
+
+## 운영 관찰
+
+턴 데몬 5분 telemetry는 world entity 수에 더해 `generalTurnQueues`와
+`nationTurnQueues`를 출력한다. 정상 flush가 이어지는 장기 서버에서는
+`generalTurnQueues - generals`가 사망 누적으로 계속 증가하지 않아야 한다.
+heap/RSS만으로 queue leak을 추정하지 말고 두 count와 OOM/restart, 월 진행을 함께
+관찰한다.
diff --git a/docs/architecture/runtime.md b/docs/architecture/runtime.md
index 163f429b..6cecd93c 100644
--- a/docs/architecture/runtime.md
+++ b/docs/architecture/runtime.md
@@ -245,6 +245,13 @@ Transaction 실패 시 in-memory snapshot을 복원하고 event는 재시도 가
 Checkpoint의 단일 소유자는 `InMemoryTurnWorld`이며 state store는 이를
 위임 조회합니다. 별도 checkpoint 복사본이 snapshot보다 앞서 나가지 않습니다.
 
+DB flush가 성공해 장수·국가 행과 예약 턴 행을 삭제한 뒤에는 같은
+`EngineStateManager` transaction 안에서 해당 in-memory 예약 큐도 제거합니다.
+실패하면 savepoint가 큐를 복원합니다. 5분 memory telemetry의
+`generalTurnQueues`/`nationTurnQueues`와 world entity count로 장기 churn의 queue
+잔존 여부를 확인할 수 있으며, 재현 행렬과 기준 수치는
+[`npc-lifecycle-memory-profile.md`](./npc-lifecycle-memory-profile.md)에 기록합니다.
+
 예약 턴은 revision/CAS와 lease를 사용합니다. API의 편집과 daemon의 실행이
 경합해도 오래된 revision이 새 queue를 덮어쓰지 않게 합니다.