diff --git a/app/game-api/src/battleSim/processor.ts b/app/game-api/src/battleSim/processor.ts
index 8b66f4b..632540f 100644
--- a/app/game-api/src/battleSim/processor.ts
+++ b/app/game-api/src/battleSim/processor.ts
@@ -49,6 +49,7 @@ const mapCityPayload = (payload: BattleSimJobPayload['attackerCity']): City => (
     name: payload.name,
     nationId: payload.nation,
     level: payload.level,
+    state: payload.state,
     population: payload.pop,
     populationMax: payload.pop_max,
     agriculture: payload.agri,
diff --git a/app/game-api/src/context.ts b/app/game-api/src/context.ts
index ed788ce..e31f6ad 100644
--- a/app/game-api/src/context.ts
+++ b/app/game-api/src/context.ts
@@ -1,5 +1,5 @@
 import type { GameSessionTokenPayload } from '@sammo-ts/common';
-import type { DatabaseClient as InfraDatabaseClient } from '@sammo-ts/infra';
+import type { DatabaseClient as InfraDatabaseClient, RedisConnector } from '@sammo-ts/infra';
 
 import type { TurnDaemonTransport } from './daemon/transport.js';
 import type { BattleSimTransport } from './battleSim/transport.js';
@@ -117,6 +117,7 @@ export type DatabaseClient = InfraDatabaseClient<
 
 export interface GameApiContext {
     db: DatabaseClient;
+    redis: RedisConnector['client'];
     turnDaemon: TurnDaemonTransport;
     battleSim: BattleSimTransport;
     profile: GameProfile;
@@ -125,6 +126,7 @@ export interface GameApiContext {
 
 export const createGameApiContext = (options: {
     db: DatabaseClient;
+    redis: RedisConnector['client'];
     turnDaemon: TurnDaemonTransport;
     battleSim: BattleSimTransport;
     profile: GameProfile;
@@ -132,6 +134,7 @@ export const createGameApiContext = (options: {
 }): GameApiContext => {
     return {
         db: options.db,
+        redis: options.redis,
         turnDaemon: options.turnDaemon,
         battleSim: options.battleSim,
         profile: options.profile,
diff --git a/app/game-api/src/maps/worldMap.ts b/app/game-api/src/maps/worldMap.ts
new file mode 100644
index 0000000..c9786ff
--- /dev/null
+++ b/app/game-api/src/maps/worldMap.ts
@@ -0,0 +1,240 @@
+import type { GameApiContext, WorldStateRow } from '../context.js';
+
+export type MapCityCompact = [number, number, number, number, number, number];
+export type MapNationCompact = [number, string, string, number];
+
+export type BaseMapResult = {
+    result: true;
+    version: 0;
+    startYear: number;
+    year: number;
+    month: number;
+    cityList: MapCityCompact[];
+    nationList: MapNationCompact[];
+};
+
+export type WorldMapResult = BaseMapResult & {
+    spyList: Record<number, number>;
+    shownByGeneralList: number[];
+    myCity: number | null;
+    myNation: number | null;
+};
+
+type MapCityRow = {
+    id: number;
+    level: number;
+    nationId: number;
+    region: number;
+    supplyState: number;
+    meta: unknown;
+};
+
+type MapNationRow = {
+    id: number;
+    name: string;
+    color: string;
+    capitalCityId: number | null;
+    meta: unknown;
+};
+
+type GeneralCityRow = {
+    cityId: number;
+};
+
+const MAP_VERSION = 0 as const;
+const BASE_MAP_TTL_SECONDS = 30;
+
+const isRecord = (value: unknown): value is Record<string, unknown> =>
+    value !== null && typeof value === 'object' && !Array.isArray(value);
+
+const asRecord = (value: unknown): Record<string, unknown> =>
+    isRecord(value) ? value : {};
+
+const resolveStartYear = (worldState: WorldStateRow): number => {
+    const meta = asRecord(worldState.meta);
+    const scenarioMeta = asRecord(meta.scenarioMeta);
+    const startYear = scenarioMeta.startYear;
+    if (typeof startYear === 'number' && Number.isFinite(startYear)) {
+        return startYear;
+    }
+    return 0;
+};
+
+const readState = (meta: Record<string, unknown>): number => {
+    const raw = meta.state;
+    if (typeof raw === 'number' && Number.isFinite(raw)) {
+        return Math.floor(raw);
+    }
+    return 0;
+};
+
+const normalizeNumberRecord = (value: unknown): Record<number, number> => {
+    if (!isRecord(value)) {
+        return {};
+    }
+    const output: Record<number, number> = {};
+    for (const [key, rawValue] of Object.entries(value)) {
+        const keyNumber = Number(key);
+        if (!Number.isFinite(keyNumber)) {
+            continue;
+        }
+        if (typeof rawValue === 'number' && Number.isFinite(rawValue)) {
+            output[keyNumber] = Math.floor(rawValue);
+        }
+    }
+    return output;
+};
+
+const resolveSpyList = (meta: Record<string, unknown>): Record<number, number> => {
+    if (meta.spyList !== undefined) {
+        return normalizeNumberRecord(meta.spyList);
+    }
+    if (meta.spy !== undefined) {
+        return normalizeNumberRecord(meta.spy);
+    }
+    return {};
+};
+
+const buildBaseMapCacheKey = (ctx: GameApiContext): string =>
+    `sammo:map:base:${ctx.profile.id}:${ctx.profile.scenario}`;
+
+const loadBaseMap = async (
+    ctx: GameApiContext,
+    useCache: boolean
+): Promise<BaseMapResult | null> => {
+    const cacheKey = buildBaseMapCacheKey(ctx);
+    if (useCache) {
+        const cached = await ctx.redis.get(cacheKey);
+        if (cached) {
+            try {
+                return JSON.parse(cached) as BaseMapResult;
+            } catch {
+                // Ignore cache parse errors.
+            }
+        }
+    }
+
+    const worldState = await ctx.db.worldState.findFirst();
+    if (!worldState) {
+        return null;
+    }
+
+    const [cityRows, nationRows] = await Promise.all([
+        ctx.db.$queryRaw<MapCityRow[]>`
+            SELECT id,
+                level,
+                nation_id as "nationId",
+                region,
+                supply_state as "supplyState",
+                meta
+            FROM city
+        `,
+        ctx.db.$queryRaw<MapNationRow[]>`
+            SELECT id,
+                name,
+                color,
+                capital_city_id as "capitalCityId",
+                meta
+            FROM nation
+        `,
+    ]);
+
+    const cityList: MapCityCompact[] = cityRows.map((row) => {
+        const meta = asRecord(row.meta);
+        const state = readState(meta);
+        const supplyFlag = row.supplyState > 0 ? 1 : 0;
+        return [
+            row.id,
+            row.level,
+            state,
+            row.nationId,
+            row.region,
+            supplyFlag,
+        ];
+    });
+
+    const nationList: MapNationCompact[] = nationRows.map((row) => [
+        row.id,
+        row.name,
+        row.color,
+        row.capitalCityId ?? 0,
+    ]);
+
+    const baseMap: BaseMapResult = {
+        result: true,
+        version: MAP_VERSION,
+        startYear: resolveStartYear(worldState),
+        year: worldState.currentYear,
+        month: worldState.currentMonth,
+        cityList,
+        nationList,
+    };
+
+    if (useCache) {
+        await ctx.redis.set(cacheKey, JSON.stringify(baseMap), {
+            EX: BASE_MAP_TTL_SECONDS,
+        });
+    }
+
+    return baseMap;
+};
+
+export const loadWorldMap = async (
+    ctx: GameApiContext,
+    options: {
+        generalId?: number;
+        neutralView?: boolean;
+        showMe?: boolean;
+        useCache?: boolean;
+    }
+): Promise<WorldMapResult | null> => {
+    const baseMap = await loadBaseMap(ctx, options.useCache ?? true);
+    if (!baseMap) {
+        return null;
+    }
+
+    let myCity: number | null = null;
+    let myNation: number | null = null;
+    let spyList: Record<number, number> = {};
+    let shownByGeneralList: number[] = [];
+
+    if (options.generalId) {
+        const general = await ctx.db.general.findUnique({
+            where: { id: options.generalId },
+        });
+        if (general) {
+            if (options.showMe !== false && general.cityId > 0) {
+                myCity = general.cityId;
+            }
+            if (options.neutralView !== true && general.nationId > 0) {
+                myNation = general.nationId;
+            }
+        }
+    }
+
+    if (myNation !== null) {
+        const nation = await ctx.db.nation.findUnique({
+            where: { id: myNation },
+        });
+        if (nation) {
+            spyList = resolveSpyList(asRecord(nation.meta));
+        }
+
+        const generalCities = await ctx.db.$queryRaw<GeneralCityRow[]>`
+            SELECT DISTINCT city_id as "cityId"
+            FROM general
+            WHERE nation_id = ${myNation}
+        `;
+        shownByGeneralList = generalCities
+            .map((row) => row.cityId)
+            .filter((id) => Number.isFinite(id));
+    }
+
+    return {
+        ...baseMap,
+        spyList,
+        shownByGeneralList,
+        myCity,
+        myNation,
+    };
+};
diff --git a/app/game-api/src/router.ts b/app/game-api/src/router.ts
index 274a1e9..ae60ac4 100644
--- a/app/game-api/src/router.ts
+++ b/app/game-api/src/router.ts
@@ -29,6 +29,7 @@ import {
 } from './messages/store.js';
 import { buildBattleSimJobPayload } from './battleSim/environment.js';
 import { zBattleSimJobId, zBattleSimRequest } from './battleSim/schema.js';
+import { loadWorldMap } from './maps/worldMap.js';
 
 const zRunReason = z.enum(['schedule', 'manual', 'poke']);
 const zMessageType = z.enum(['private', 'public', 'national', 'diplomacy']);
@@ -101,6 +102,25 @@ export const appRouter = router({
             const state = await ctx.db.worldState.findFirst();
             return state ? toWorldStateSnapshot(state) : null;
         }),
+        getMap: procedure
+            .input(
+                z.object({
+                    generalId: z.number().int().positive().optional(),
+                    neutralView: z.boolean().optional(),
+                    showMe: z.boolean().optional(),
+                    useCache: z.boolean().optional(),
+                })
+            )
+            .query(async ({ ctx, input }) => {
+                const map = await loadWorldMap(ctx, input);
+                if (!map) {
+                    throw new TRPCError({
+                        code: 'PRECONDITION_FAILED',
+                        message: 'World state is not initialized.',
+                    });
+                }
+                return map;
+            }),
     }),
     turns: router({
         getCommandTable: authedProcedure
diff --git a/app/game-api/src/server.ts b/app/game-api/src/server.ts
index 552ac63..999620a 100644
--- a/app/game-api/src/server.ts
+++ b/app/game-api/src/server.ts
@@ -83,6 +83,7 @@ export const createGameApiServer = async () => {
                 const auth = token ? tokenVerifier.verify(token) : null;
                 return createGameApiContext({
                     db: postgres.prisma as unknown as DatabaseClient,
+                    redis: redis.client,
                     turnDaemon,
                     battleSim,
                     profile: {
diff --git a/app/game-api/src/trpc.ts b/app/game-api/src/trpc.ts
index 8b2221b..51de120 100644
--- a/app/game-api/src/trpc.ts
+++ b/app/game-api/src/trpc.ts
@@ -6,7 +6,7 @@ const t = initTRPC.context<GameApiContext>().create();
 
 export const router = t.router;
 export const procedure = t.procedure;
-export const authedProcedure = t.procedure.use(({ ctx, next }) => {
+export const authedProcedure: typeof t.procedure = t.procedure.use(({ ctx, next }) => {
     if (!ctx.auth) {
         throw new TRPCError({
             code: 'UNAUTHORIZED',
diff --git a/app/game-api/src/turns/commandTable.ts b/app/game-api/src/turns/commandTable.ts
index 12049a4..dff98d4 100644
--- a/app/game-api/src/turns/commandTable.ts
+++ b/app/game-api/src/turns/commandTable.ts
@@ -325,32 +325,40 @@ const mapGeneralRow = (row: GeneralRow): General => ({
     meta: asTriggerRecord(row.meta),
 });
 
-const mapCityRow = (row: CityRow): City => ({
-    id: row.id,
-    name: row.name,
-    nationId: row.nationId,
-    level: row.level,
-    population: row.population,
-    populationMax: row.populationMax,
-    agriculture: row.agriculture,
-    agricultureMax: row.agricultureMax,
-    commerce: row.commerce,
-    commerceMax: row.commerceMax,
-    security: row.security,
-    securityMax: row.securityMax,
-    supplyState: row.supplyState,
-    frontState: row.frontState,
-    defence: row.defence,
-    defenceMax: row.defenceMax,
-    wall: row.wall,
-    wallMax: row.wallMax,
-    meta: {
-        ...asTriggerRecord(row.meta),
-        trust: row.trust,
-        trade: row.trade,
-        region: row.region,
-    },
-});
+const mapCityRow = (row: CityRow): City => {
+    const meta = asTriggerRecord(row.meta);
+    const state =
+        typeof meta.state === 'number' && Number.isFinite(meta.state)
+            ? Math.floor(meta.state)
+            : 0;
+    return {
+        id: row.id,
+        name: row.name,
+        nationId: row.nationId,
+        level: row.level,
+        state,
+        population: row.population,
+        populationMax: row.populationMax,
+        agriculture: row.agriculture,
+        agricultureMax: row.agricultureMax,
+        commerce: row.commerce,
+        commerceMax: row.commerceMax,
+        security: row.security,
+        securityMax: row.securityMax,
+        supplyState: row.supplyState,
+        frontState: row.frontState,
+        defence: row.defence,
+        defenceMax: row.defenceMax,
+        wall: row.wall,
+        wallMax: row.wallMax,
+        meta: {
+            ...meta,
+            trust: row.trust,
+            trade: row.trade,
+            region: row.region,
+        },
+    };
+};
 
 const mapNationRow = (row: NationRow): Nation => ({
     id: row.id,
diff --git a/app/game-engine/src/scenario/scenarioSeeder.ts b/app/game-engine/src/scenario/scenarioSeeder.ts
index f42ac61..2425a01 100644
--- a/app/game-engine/src/scenario/scenarioSeeder.ts
+++ b/app/game-engine/src/scenario/scenarioSeeder.ts
@@ -199,6 +199,7 @@ export const seedScenarioToDatabase = async (
                     meta: asJson({
                         position: city.position,
                         connections: city.connections,
+                        state: city.state,
                         ...city.meta,
                     }),
                 })),
diff --git a/app/game-engine/src/turn/databaseHooks.ts b/app/game-engine/src/turn/databaseHooks.ts
index 620300e..7cca985 100644
--- a/app/game-engine/src/turn/databaseHooks.ts
+++ b/app/game-engine/src/turn/databaseHooks.ts
@@ -110,7 +110,10 @@ const buildGeneralCreate = (
 const buildCityUpdate = (
     city: ReturnType<InMemoryTurnWorld['consumeDirtyState']>['cities'][number]
 ): TurnEngineCityUpdateInput => {
-    const meta = city.meta as Record<string, unknown>;
+    const meta = {
+        ...(city.meta as Record<string, unknown>),
+        state: city.state,
+    };
     const trust = readMetaNumber(meta, 'trust');
     const trade = readMetaNumber(meta, 'trade');
     const region = readMetaNumber(meta, 'region');
@@ -133,7 +136,7 @@ const buildCityUpdate = (
         defenceMax: city.defenceMax,
         wall: city.wall,
         wallMax: city.wallMax,
-        meta: asJson(city.meta),
+        meta: asJson(meta),
     };
 
     if (trust !== null) {
diff --git a/app/game-engine/src/turn/worldLoader.ts b/app/game-engine/src/turn/worldLoader.ts
index dd415b4..b99032b 100644
--- a/app/game-engine/src/turn/worldLoader.ts
+++ b/app/game-engine/src/turn/worldLoader.ts
@@ -179,32 +179,40 @@ const mapGeneralRow = (row: TurnEngineGeneralRow): TurnGeneral => ({
     recentWarTime: row.recentWarTime ?? null,
 });
 
-const mapCityRow = (row: TurnEngineCityRow): City => ({
-    id: row.id,
-    name: row.name,
-    nationId: row.nationId,
-    level: row.level,
-    population: row.population,
-    populationMax: row.populationMax,
-    agriculture: row.agriculture,
-    agricultureMax: row.agricultureMax,
-    commerce: row.commerce,
-    commerceMax: row.commerceMax,
-    security: row.security,
-    securityMax: row.securityMax,
-    supplyState: row.supplyState,
-    frontState: row.frontState,
-    defence: row.defence,
-    defenceMax: row.defenceMax,
-    wall: row.wall,
-    wallMax: row.wallMax,
-    meta: {
-        ...asTriggerRecord(row.meta),
-        trust: row.trust,
-        trade: row.trade,
-        region: row.region,
-    },
-});
+const mapCityRow = (row: TurnEngineCityRow): City => {
+    const meta = asTriggerRecord(row.meta);
+    const state =
+        typeof meta.state === 'number' && Number.isFinite(meta.state)
+            ? Math.floor(meta.state)
+            : 0;
+    return {
+        id: row.id,
+        name: row.name,
+        nationId: row.nationId,
+        level: row.level,
+        state,
+        population: row.population,
+        populationMax: row.populationMax,
+        agriculture: row.agriculture,
+        agricultureMax: row.agricultureMax,
+        commerce: row.commerce,
+        commerceMax: row.commerceMax,
+        security: row.security,
+        securityMax: row.securityMax,
+        supplyState: row.supplyState,
+        frontState: row.frontState,
+        defence: row.defence,
+        defenceMax: row.defenceMax,
+        wall: row.wall,
+        wallMax: row.wallMax,
+        meta: {
+            ...meta,
+            trust: row.trust,
+            trade: row.trade,
+            region: row.region,
+        },
+    };
+};
 
 const mapNationRow = (row: TurnEngineNationRow): Nation => ({
     id: row.id,
diff --git a/packages/logic/src/domain/entities.ts b/packages/logic/src/domain/entities.ts
index d3305f2..9317fcf 100644
--- a/packages/logic/src/domain/entities.ts
+++ b/packages/logic/src/domain/entities.ts
@@ -67,6 +67,7 @@ export interface City {
     name: string;
     nationId: NationId;
     level: number;
+    state: number;
     population: number;
     populationMax: number;
     agriculture: number;
diff --git a/packages/logic/src/world/bootstrap.ts b/packages/logic/src/world/bootstrap.ts
index e9d5a72..7fb02f5 100644
--- a/packages/logic/src/world/bootstrap.ts
+++ b/packages/logic/src/world/bootstrap.ts
@@ -559,11 +559,17 @@ export const buildScenarioBootstrap = (
 
     for (const city of map.cities) {
         const nationId = cityOwnership.get(city.id) ?? 0;
+        const rawCityMeta = city.meta ?? {};
+        const state =
+            typeof rawCityMeta.state === 'number' && Number.isFinite(rawCityMeta.state)
+                ? Math.floor(rawCityMeta.state)
+                : 0;
         const seed: CitySeed = {
             id: city.id,
             name: city.name,
             nationId,
             level: city.level,
+            state,
             population: city.initial.population,
             populationMax: city.max.population,
             agriculture: city.initial.agriculture,
@@ -583,11 +589,14 @@ export const buildScenarioBootstrap = (
             region: city.region,
             position: city.position,
             connections: city.connections,
-            meta: city.meta ?? {},
+            meta: {
+                ...rawCityMeta,
+                state,
+            },
         };
         seedCities.push(seed);
 
-        const cityMeta: Record<string, TriggerValue> = {
+        const cityTriggerMeta: Record<string, TriggerValue> = {
             region: city.region,
             trust: seed.trust,
             trade: seed.trade,
@@ -600,6 +609,7 @@ export const buildScenarioBootstrap = (
             name: seed.name,
             nationId: seed.nationId,
             level: seed.level,
+            state,
             population: seed.population,
             populationMax: seed.populationMax,
             agriculture: seed.agriculture,
@@ -614,7 +624,7 @@ export const buildScenarioBootstrap = (
             defenceMax: seed.defenceMax,
             wall: seed.wall,
             wallMax: seed.wallMax,
-            meta: cityMeta,
+            meta: cityTriggerMeta,
         });
     }
 
diff --git a/packages/logic/src/world/types.ts b/packages/logic/src/world/types.ts
index ab611ec..894bb49 100644
--- a/packages/logic/src/world/types.ts
+++ b/packages/logic/src/world/types.ts
@@ -120,6 +120,7 @@ export interface CitySeed {
     name: string;
     nationId: number;
     level: number;
+    state: number;
     population: number;
     populationMax: number;
     agriculture: number;