diff --git a/app/game-engine/src/turn/monthlySemiAnnualAction.ts b/app/game-engine/src/turn/monthlySemiAnnualAction.ts
new file mode 100644
index 0000000..cf4a811
--- /dev/null
+++ b/app/game-engine/src/turn/monthlySemiAnnualAction.ts
@@ -0,0 +1,153 @@
+import { asNumber } from '@sammo-ts/common';
+import { createIncomeActionContext, type NationTraitModule } from '@sammo-ts/logic';
+
+import type { InMemoryTurnWorld } from './inMemoryWorld.js';
+import type { MonthlyEventActionHandler } from './monthlyEventHandler.js';
+
+type SemiAnnualResource = 'gold' | 'rice';
+
+const roundLegacyIntegerColumn = (value: number): number => Math.round(value);
+
+const parseResource = (args: readonly unknown[]): SemiAnnualResource => {
+    const resource = args[0];
+    if (resource !== 'gold' && resource !== 'rice') {
+        throw new Error('ProcessSemiAnnual requires resource "gold" or "rice".');
+    }
+    return resource;
+};
+
+const resolveBasePopulationIncrease = (world: InMemoryTurnWorld): number => {
+    const value = world.getScenarioConfig().const.basePopIncreaseAmount;
+    return typeof value === 'number' && Number.isFinite(value) ? value : 5_000;
+};
+
+const resolveNationRate = (meta: Record<string, unknown>): number => asNumber(meta.rate, 20);
+
+const decayDomesticValue = (value: number): number => roundLegacyIntegerColumn(value * 0.99);
+
+const applyResourceMaintenance = (value: number, ratios: readonly [number, number][]): number => {
+    if (value <= 1_000) {
+        return value;
+    }
+    for (const [threshold, ratio] of ratios) {
+        if (value > threshold) {
+            return roundLegacyIntegerColumn(value * ratio);
+        }
+    }
+    return roundLegacyIntegerColumn(value * 0.99);
+};
+
+export const createProcessSemiAnnualHandler = (options: {
+    getWorld: () => InMemoryTurnWorld | null;
+    nationTraits?: ReadonlyMap<string, NationTraitModule>;
+}): MonthlyEventActionHandler => {
+    return (args) => {
+        const world = options.getWorld();
+        if (!world) {
+            return;
+        }
+        const resource = parseResource(args);
+
+        // 레거시의 첫 UPDATE는 모든 도시의 사상자를 초기화하고 내정치를
+        // 1% 감소시킨다. 각 SQL 문 사이의 정수 column 반올림도 보존한다.
+        for (const city of world.listCities()) {
+            world.updateCity(city.id, {
+                agriculture: decayDomesticValue(city.agriculture),
+                commerce: decayDomesticValue(city.commerce),
+                security: decayDomesticValue(city.security),
+                defence: decayDomesticValue(city.defence),
+                wall: decayDomesticValue(city.wall),
+                meta: {
+                    ...city.meta,
+                    dead: 0,
+                },
+            });
+        }
+
+        // run()은 같은 이름의 class method가 아니라 전역 popIncrease()를
+        // 호출한다. 이 때문에 중립 도시는 내정치 1% 감소를 한 번 더 받는다.
+        for (const city of world.listCities().filter((candidate) => candidate.nationId === 0)) {
+            world.updateCity(city.id, {
+                agriculture: decayDomesticValue(city.agriculture),
+                commerce: decayDomesticValue(city.commerce),
+                security: decayDomesticValue(city.security),
+                defence: decayDomesticValue(city.defence),
+                wall: decayDomesticValue(city.wall),
+                meta: {
+                    ...city.meta,
+                    trust: 50,
+                },
+            });
+        }
+
+        const basePopulationIncrease = resolveBasePopulationIncrease(world);
+        for (const nation of world.listNations()) {
+            const rate = resolveNationRate(nation.meta);
+            let populationRatio = (30 - rate) / 200;
+            const trait = options.nationTraits?.get(nation.typeCode);
+            if (trait?.onCalcNationalIncome) {
+                populationRatio = trait.onCalcNationalIncome(
+                    createIncomeActionContext(nation),
+                    'pop',
+                    populationRatio
+                );
+            }
+            const genericRatio = (20 - rate) / 200;
+            const trustDiff = 20 - rate;
+
+            for (const city of world
+                .listCities()
+                .filter((candidate) => candidate.nationId === nation.id && candidate.supplyState === 1)) {
+                if (city.securityMax <= 0) {
+                    throw new Error(`ProcessSemiAnnual requires positive securityMax (cityId=${city.id}).`);
+                }
+                const securityRatio = city.security / city.securityMax / 10;
+                const populationFactor =
+                    populationRatio >= 0
+                        ? 1 + populationRatio * (1 + securityRatio)
+                        : 1 + populationRatio * (1 - securityRatio);
+                const trust = asNumber(city.meta.trust, 50);
+                world.updateCity(city.id, {
+                    population: roundLegacyIntegerColumn(
+                        Math.min(city.populationMax, basePopulationIncrease + city.population * populationFactor)
+                    ),
+                    agriculture: roundLegacyIntegerColumn(
+                        Math.min(city.agricultureMax, city.agriculture * (1 + genericRatio))
+                    ),
+                    commerce: roundLegacyIntegerColumn(
+                        Math.min(city.commerceMax, city.commerce * (1 + genericRatio))
+                    ),
+                    security: roundLegacyIntegerColumn(
+                        Math.min(city.securityMax, city.security * (1 + genericRatio))
+                    ),
+                    defence: roundLegacyIntegerColumn(
+                        Math.min(city.defenceMax, city.defence * (1 + genericRatio))
+                    ),
+                    wall: roundLegacyIntegerColumn(Math.min(city.wallMax, city.wall * (1 + genericRatio))),
+                    meta: {
+                        ...city.meta,
+                        trust: Math.max(0, Math.min(100, trust + trustDiff)),
+                    },
+                });
+            }
+        }
+
+        for (const general of world.listGenerals()) {
+            const current = general[resource];
+            const next = applyResourceMaintenance(current, [[10_000, 0.97]]);
+            if (next !== current) {
+                world.updateGeneral(general.id, { [resource]: next });
+            }
+        }
+        for (const nation of world.listNations()) {
+            const current = nation[resource];
+            const next = applyResourceMaintenance(current, [
+                [100_000, 0.95],
+                [10_000, 0.97],
+            ]);
+            if (next !== current) {
+                world.updateNation(nation.id, { [resource]: next });
+            }
+        }
+    };
+};
diff --git a/app/game-engine/src/turn/turnDaemon.ts b/app/game-engine/src/turn/turnDaemon.ts
index 8b76587..84179c1 100644
--- a/app/game-engine/src/turn/turnDaemon.ts
+++ b/app/game-engine/src/turn/turnDaemon.ts
@@ -48,6 +48,7 @@ import {
 import { createRaiseDisasterHandler } from './monthlyDisasterAction.js';
 import { createUpdateCitySupplyHandler } from './monthlyCitySupplyAction.js';
 import { createUpdateNationLevelHandler } from './monthlyNationLevelAction.js';
+import { createProcessSemiAnnualHandler } from './monthlySemiAnnualAction.js';
 import { DatabaseTurnDaemonLease, TurnDaemonLeaseUnavailableError } from '../lifecycle/databaseTurnDaemonLease.js';
 
 export interface TurnDaemonRuntimeOptions {
@@ -201,6 +202,13 @@ const createTurnDaemonRuntimeWithLease = async (
             map: snapshot.map,
         })
     );
+    eventActions.set(
+        'ProcessSemiAnnual',
+        createProcessSemiAnnualHandler({
+            getWorld: () => worldRef,
+            nationTraits: nationTraitMap,
+        })
+    );
     if (reservedTurnStoreHandle) {
         eventActions.set(
             'UpdateNationLevel',
diff --git a/app/game-engine/test/monthlySemiAnnualAction.test.ts b/app/game-engine/test/monthlySemiAnnualAction.test.ts
new file mode 100644
index 0000000..e4477d2
--- /dev/null
+++ b/app/game-engine/test/monthlySemiAnnualAction.test.ts
@@ -0,0 +1,260 @@
+import { describe, expect, it } from 'vitest';
+import type { City, Nation, NationTraitModule } from '@sammo-ts/logic';
+
+import { InMemoryTurnWorld } from '../src/turn/inMemoryWorld.js';
+import { createProcessSemiAnnualHandler } from '../src/turn/monthlySemiAnnualAction.js';
+import type { TurnEvent, TurnGeneral, TurnWorldSnapshot, TurnWorldState } from '../src/turn/types.js';
+
+const buildCity = (id: number, patch: Partial<City> = {}): City => ({
+    id,
+    name: `도시${id}`,
+    nationId: 1,
+    level: 4,
+    state: 0,
+    population: 10_000,
+    populationMax: 50_000,
+    agriculture: 1_001,
+    agricultureMax: 5_000,
+    commerce: 1_001,
+    commerceMax: 5_000,
+    security: 1_001,
+    securityMax: 2_000,
+    supplyState: 1,
+    frontState: 0,
+    defence: 1_001,
+    defenceMax: 5_000,
+    wall: 1_001,
+    wallMax: 5_000,
+    conflict: {},
+    meta: { trust: 55, dead: 123, marker: id },
+    ...patch,
+});
+
+const buildNation = (id: number, patch: Partial<Nation> = {}): Nation => ({
+    id,
+    name: `국가${id}`,
+    color: '#777777',
+    capitalCityId: null,
+    chiefGeneralId: null,
+    gold: 1_000,
+    rice: 1_000,
+    power: 0,
+    level: 1,
+    typeCode: 'che_중립',
+    meta: { rate: 20 },
+    ...patch,
+});
+
+const buildGeneral = (id: number, patch: Partial<TurnGeneral> = {}): TurnGeneral => ({
+    id,
+    name: `장수${id}`,
+    nationId: 1,
+    cityId: 1,
+    troopId: 0,
+    stats: { leadership: 50, strength: 50, intelligence: 50 },
+    experience: 0,
+    dedication: 0,
+    officerLevel: 0,
+    role: {
+        personality: null,
+        specialDomestic: null,
+        specialWar: null,
+        items: { horse: null, weapon: null, book: null, item: null },
+    },
+    injury: 0,
+    gold: 1_000,
+    rice: 1_000,
+    crew: 0,
+    crewTypeId: 0,
+    train: 0,
+    atmos: 0,
+    age: 20,
+    npcState: 0,
+    triggerState: { flags: {}, counters: {}, modifiers: {}, meta: {} },
+    meta: { killturn: 1_000 },
+    turnTime: new Date('0193-01-01T00:00:00.000Z'),
+    ...patch,
+});
+
+const event: TurnEvent = {
+    id: 1,
+    targetCode: 'month',
+    priority: 1_000,
+    condition: true,
+    action: [['ProcessSemiAnnual', 'gold']],
+    meta: {},
+};
+
+const populationTrait: NationTraitModule = {
+    key: 'test-population',
+    name: '인구 보정 시험',
+    info: '',
+    kind: 'nation',
+    onCalcNationalIncome: (_context, type, amount) => (type === 'pop' ? amount * 1.2 : amount),
+};
+
+const buildHarness = (options: {
+    cities?: City[];
+    nations?: Nation[];
+    generals?: TurnGeneral[];
+    configConst?: Record<string, unknown>;
+    traits?: ReadonlyMap<string, NationTraitModule>;
+} = {}) => {
+    const state: TurnWorldState = {
+        id: 1,
+        currentYear: 193,
+        currentMonth: 1,
+        tickSeconds: 600,
+        lastTurnTime: new Date('0193-01-01T00:00:00.000Z'),
+        meta: {},
+    };
+    const snapshot: TurnWorldSnapshot = {
+        scenarioConfig: {
+            stat: { total: 300, min: 10, max: 100, npcTotal: 150, npcMax: 50, npcMin: 10, chiefMin: 70 },
+            iconPath: '',
+            map: {},
+            const: options.configConst ?? {},
+            environment: { mapName: 'test', unitSet: 'default' },
+        },
+        map: {
+            id: 'test',
+            name: 'test',
+            cities: [],
+            defaults: { trust: 50, trade: 100, supplyState: 1, frontState: 0 },
+        },
+        generals: options.generals ?? [],
+        cities: options.cities ?? [],
+        nations: options.nations ?? [],
+        troops: [],
+        diplomacy: [],
+        events: [event],
+        initialEvents: [],
+    };
+    const world = new InMemoryTurnWorld(state, snapshot, {
+        schedule: { entries: [{ startMinute: 0, tickMinutes: 10 }] },
+    });
+    const handler = createProcessSemiAnnualHandler({
+        getWorld: () => world,
+        nationTraits: options.traits,
+    });
+    return { world, handler };
+};
+
+const environment = {
+    year: 193,
+    month: 1,
+    startyear: 190,
+    currentEventID: 1,
+    turnTime: new Date('0193-01-01T00:00:00.000Z'),
+};
+
+describe('ProcessSemiAnnual monthly action', () => {
+    it('preserves the global popIncrease order, neutral double decay, supplied filtering, and nation trait', async () => {
+        const { world, handler } = buildHarness({
+            configConst: { basePopIncreaseAmount: 15_000 },
+            cities: [
+                buildCity(1),
+                buildCity(2, { supplyState: 0 }),
+                buildCity(3, { nationId: 0 }),
+            ],
+            nations: [buildNation(1, { typeCode: populationTrait.key })],
+            traits: new Map([[populationTrait.key, populationTrait]]),
+        });
+
+        await handler(['gold'], environment, event);
+
+        expect(world.getCityById(1)).toMatchObject({
+            population: 25_630,
+            agriculture: 991,
+            commerce: 991,
+            security: 991,
+            defence: 991,
+            wall: 991,
+            meta: { trust: 55, dead: 0, marker: 1 },
+        });
+        expect(world.getCityById(2)).toMatchObject({
+            population: 10_000,
+            agriculture: 991,
+            meta: { trust: 55, dead: 0, marker: 2 },
+        });
+        expect(world.getCityById(3)).toMatchObject({
+            population: 10_000,
+            agriculture: 981,
+            commerce: 981,
+            security: 981,
+            defence: 981,
+            wall: 981,
+            meta: { trust: 50, dead: 0, marker: 3 },
+        });
+        expect(world.peekDirtyState().logs).toEqual([]);
+    });
+
+    it('uses the negative population security branch and clamps population, domestic stats, and trust', async () => {
+        const { world, handler } = buildHarness({
+            cities: [
+                buildCity(1, {
+                    population: 49_000,
+                    populationMax: 50_000,
+                    agriculture: 4_999,
+                    agricultureMax: 5_000,
+                    commerce: 4_999,
+                    commerceMax: 5_000,
+                    security: 1_500,
+                    securityMax: 2_000,
+                    defence: 4_999,
+                    defenceMax: 5_000,
+                    wall: 4_999,
+                    wallMax: 5_000,
+                    meta: { trust: 5, dead: 1 },
+                }),
+            ],
+            nations: [buildNation(1, { meta: { rate: 50 } })],
+        });
+
+        await handler(['gold'], environment, event);
+
+        expect(world.getCityById(1)).toMatchObject({
+            population: 49_464,
+            agriculture: 4_207,
+            commerce: 4_207,
+            security: 1_262,
+            defence: 4_207,
+            wall: 4_207,
+            meta: { trust: 0, dead: 0 },
+        });
+    });
+
+    it('applies strict legacy resource thresholds to generals and nations for either resource', async () => {
+        const amounts = [1_000, 1_001, 10_000, 10_001, 100_000, 100_001];
+        const { world, handler } = buildHarness({
+            generals: amounts.map((amount, index) => buildGeneral(index + 1, { gold: amount, rice: amount })),
+            nations: amounts.map((amount, index) =>
+                buildNation(index + 1, { gold: amount, rice: amount, meta: { rate: 20 } })
+            ),
+        });
+
+        await handler(['gold'], environment, event);
+        await handler(['rice'], environment, event);
+
+        expect(world.listGenerals().map((general) => general.gold)).toEqual([
+            1_000, 991, 9_900, 9_701, 97_000, 97_001,
+        ]);
+        expect(world.listGenerals().map((general) => general.rice)).toEqual([
+            1_000, 991, 9_900, 9_701, 97_000, 97_001,
+        ]);
+        expect(world.listNations().map((nation) => nation.gold)).toEqual([
+            1_000, 991, 9_900, 9_701, 97_000, 95_001,
+        ]);
+        expect(world.listNations().map((nation) => nation.rice)).toEqual([
+            1_000, 991, 9_900, 9_701, 97_000, 95_001,
+        ]);
+    });
+
+    it('rejects resources outside the legacy enum', () => {
+        const { handler } = buildHarness();
+
+        expect(() => {
+            void handler(['tech'], environment, event);
+        }).toThrow('ProcessSemiAnnual requires resource "gold" or "rice".');
+    });
+});
diff --git a/app/game-engine/test/monthlySemiAnnualPersistence.integration.test.ts b/app/game-engine/test/monthlySemiAnnualPersistence.integration.test.ts
new file mode 100644
index 0000000..8179d98
--- /dev/null
+++ b/app/game-engine/test/monthlySemiAnnualPersistence.integration.test.ts
@@ -0,0 +1,269 @@
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
+import type { City, Nation } from '@sammo-ts/logic';
+import { createGamePostgresConnector, type GamePrismaClient } from '@sammo-ts/infra';
+
+import { createDatabaseTurnHooks } from '../src/turn/databaseHooks.js';
+import { InMemoryTurnWorld } from '../src/turn/inMemoryWorld.js';
+import { createProcessSemiAnnualHandler } from '../src/turn/monthlySemiAnnualAction.js';
+import type { TurnGeneral, TurnWorldSnapshot, TurnWorldState } from '../src/turn/types.js';
+
+const databaseUrl = process.env.INPUT_EVENT_DATABASE_URL;
+const integration = describe.skipIf(!databaseUrl);
+const nationId = 990_071;
+const generalId = 990_071;
+const cityIds = [990_071, 990_072] as const;
+
+const nation: Nation = {
+    id: nationId,
+    name: '반기저장국',
+    color: '#777777',
+    capitalCityId: cityIds[0],
+    chiefGeneralId: generalId,
+    gold: 100_001,
+    rice: 7_777,
+    power: 0,
+    level: 1,
+    typeCode: 'che_중립',
+    meta: { rate: 20 },
+};
+
+const buildCity = (id: number, nationIdValue: number): City => ({
+    id,
+    name: `반기저장도시${id}`,
+    nationId: nationIdValue,
+    level: 1,
+    state: 0,
+    population: 10_000,
+    populationMax: 50_000,
+    agriculture: 1_001,
+    agricultureMax: 5_000,
+    commerce: 1_001,
+    commerceMax: 5_000,
+    security: 1_001,
+    securityMax: 2_000,
+    supplyState: 1,
+    frontState: 0,
+    defence: 1_001,
+    defenceMax: 5_000,
+    wall: 1_001,
+    wallMax: 5_000,
+    conflict: {},
+    meta: { trust: 55, trade: 100, region: 1, dead: 123 },
+});
+
+const general: TurnGeneral = {
+    id: generalId,
+    name: '반기저장장수',
+    nationId,
+    cityId: cityIds[0],
+    troopId: 0,
+    stats: { leadership: 50, strength: 50, intelligence: 50 },
+    experience: 0,
+    dedication: 0,
+    officerLevel: 1,
+    role: {
+        personality: null,
+        specialDomestic: null,
+        specialWar: null,
+        items: { horse: null, weapon: null, book: null, item: null },
+    },
+    injury: 0,
+    gold: 10_001,
+    rice: 8_888,
+    crew: 0,
+    crewTypeId: 1_100,
+    train: 0,
+    atmos: 0,
+    age: 20,
+    npcState: 0,
+    triggerState: { flags: {}, counters: {}, modifiers: {}, meta: {} },
+    meta: { killturn: 1_000 },
+    turnTime: new Date('0193-01-01T00:00:00.000Z'),
+};
+
+integration('monthly semi-annual database persistence', () => {
+    let db: GamePrismaClient;
+    let closeDb: (() => Promise<void>) | undefined;
+
+    beforeAll(async () => {
+        const connector = createGamePostgresConnector({ url: databaseUrl! });
+        await connector.connect();
+        db = connector.prisma;
+        closeDb = () => connector.disconnect();
+        await db.general.deleteMany({ where: { id: generalId } });
+        await db.city.deleteMany({ where: { id: { in: [...cityIds] } } });
+        await db.nation.deleteMany({ where: { id: nationId } });
+    });
+
+    afterAll(async () => {
+        await db.general.deleteMany({ where: { id: generalId } });
+        await db.city.deleteMany({ where: { id: { in: [...cityIds] } } });
+        await db.nation.deleteMany({ where: { id: nationId } });
+        await closeDb?.();
+    });
+
+    it('persists population growth, neutral double decay, dead reset, and resource maintenance', async () => {
+        await db.nation.create({
+            data: {
+                id: nation.id,
+                name: nation.name,
+                color: nation.color,
+                capitalCityId: nation.capitalCityId,
+                chiefGeneralId: nation.chiefGeneralId,
+                gold: nation.gold,
+                rice: nation.rice,
+                tech: 0,
+                level: nation.level,
+                typeCode: nation.typeCode,
+                meta: nation.meta,
+            },
+        });
+        const cities = [buildCity(cityIds[0], nationId), buildCity(cityIds[1], 0)];
+        await db.city.createMany({
+            data: cities.map((city) => ({
+                id: city.id,
+                name: city.name,
+                level: city.level,
+                nationId: city.nationId,
+                supplyState: city.supplyState,
+                frontState: city.frontState,
+                population: city.population,
+                populationMax: city.populationMax,
+                agriculture: city.agriculture,
+                agricultureMax: city.agricultureMax,
+                commerce: city.commerce,
+                commerceMax: city.commerceMax,
+                security: city.security,
+                securityMax: city.securityMax,
+                trust: city.meta.trust as number,
+                trade: 100,
+                defence: city.defence,
+                defenceMax: city.defenceMax,
+                wall: city.wall,
+                wallMax: city.wallMax,
+                region: 1,
+                conflict: {},
+                meta: { dead: 123 },
+            })),
+        });
+        await db.general.create({
+            data: {
+                id: general.id,
+                name: general.name,
+                nationId: general.nationId,
+                cityId: general.cityId,
+                troopId: general.troopId,
+                npcState: general.npcState,
+                leadership: general.stats.leadership,
+                strength: general.stats.strength,
+                intel: general.stats.intelligence,
+                officerLevel: general.officerLevel,
+                gold: general.gold,
+                rice: general.rice,
+                crewTypeId: general.crewTypeId,
+                age: general.age,
+                turnTime: general.turnTime,
+                meta: general.meta,
+            },
+        });
+        const row = await db.worldState.create({
+            data: {
+                scenarioCode: 'monthly-semi-annual-persistence',
+                currentYear: 193,
+                currentMonth: 1,
+                tickSeconds: 600,
+                config: {},
+                meta: {},
+            },
+        });
+        const state: TurnWorldState = {
+            id: row.id,
+            currentYear: 193,
+            currentMonth: 1,
+            tickSeconds: 600,
+            lastTurnTime: new Date('2026-07-25T00:10:00.000Z'),
+            meta: {},
+        };
+        const snapshot: TurnWorldSnapshot = {
+            scenarioConfig: {
+                stat: { total: 300, min: 10, max: 100, npcTotal: 150, npcMax: 50, npcMin: 10, chiefMin: 70 },
+                iconPath: '',
+                map: {},
+                const: {},
+                environment: { mapName: 'test', unitSet: 'default' },
+            },
+            map: {
+                id: 'test',
+                name: 'test',
+                cities: [],
+                defaults: { trust: 50, trade: 100, supplyState: 1, frontState: 0 },
+            },
+            generals: [general],
+            cities,
+            nations: [nation],
+            troops: [],
+            diplomacy: [],
+            events: [],
+            initialEvents: [],
+        };
+        const world = new InMemoryTurnWorld(state, snapshot, {
+            schedule: { entries: [{ startMinute: 0, tickMinutes: 10 }] },
+        });
+        const dbHooks = await createDatabaseTurnHooks(databaseUrl!, world);
+
+        try {
+            const handler = createProcessSemiAnnualHandler({ getWorld: () => world });
+            await handler(
+                ['gold'],
+                {
+                    year: 193,
+                    month: 1,
+                    startyear: 190,
+                    currentEventID: 1,
+                    turnTime: state.lastTurnTime,
+                },
+                { id: 1, targetCode: 'month', priority: 0, condition: true, action: [], meta: {} }
+            );
+            await dbHooks.hooks.flushChanges?.({
+                lastTurnTime: state.lastTurnTime.toISOString(),
+                processedGenerals: 0,
+                processedTurns: 1,
+                durationMs: 0,
+                partial: false,
+            });
+
+            expect(await db.city.findUniqueOrThrow({ where: { id: cityIds[0] } })).toMatchObject({
+                population: 15_525,
+                agriculture: 991,
+                commerce: 991,
+                security: 991,
+                defence: 991,
+                wall: 991,
+                trust: 55,
+                meta: { dead: 0 },
+            });
+            expect(await db.city.findUniqueOrThrow({ where: { id: cityIds[1] } })).toMatchObject({
+                population: 10_000,
+                agriculture: 981,
+                commerce: 981,
+                security: 981,
+                defence: 981,
+                wall: 981,
+                trust: 50,
+                meta: { dead: 0 },
+            });
+            expect(await db.general.findUniqueOrThrow({ where: { id: generalId } })).toMatchObject({
+                gold: 9_701,
+                rice: 8_888,
+            });
+            expect(await db.nation.findUniqueOrThrow({ where: { id: nationId } })).toMatchObject({
+                gold: 95_001,
+                rice: 7_777,
+                meta: { rate: 20 },
+            });
+        } finally {
+            await dbHooks.close();
+            await db.worldState.delete({ where: { id: row.id } });
+        }
+    });
+});