Redesign infrastructure to hypercluster scale with 4-level hierarchy

Replace flat DataCenter/Rack model with Cluster > Campus > Data Center > Racks
hierarchy. Individual rack entities eliminated in favor of statistical batch
simulation using deployment cohorts. Adds tiered network topology (ToR/agg/core)
with proportional outage model, DC retrofitting, bulk operations, and drill-down
UI navigation with breadcrumbs. First cluster and campus are free to preserve
early game flow. Rebalances starting economy ($600K), funding rounds, and
cohort scaling for hypercluster-scale gameplay.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/shared/src/constants/gameBalance.ts

@@ -1,4 +1,4 @@
-import type { DCTier, DCTierConfig, RackSkuId, RackSkuConfig } from '../types/infrastructure';
+import type { DCTier, DCTierConfig, RackSkuId, RackSkuConfig, NetworkTopologyConfig, CampusTierCost, ClusterCostConfig } from '../types/infrastructure';
 
 export const TICK_INTERVAL_MS = 1000;
 export const MAX_OFFLINE_TICKS = 86_400;
@@ -9,7 +9,7 @@ export const FINANCIAL_SNAPSHOT_INTERVAL = 60;
 export const MAX_FINANCIAL_HISTORY = 1000;
 export const MAX_REPUTATION_HISTORY = 500;
 
-export const STARTING_MONEY = 50_000;
+export const STARTING_MONEY = 600_000;
 export const BASE_ENERGY_COST_PER_FLOP = 0.001;
 
 export const TRAINING_BASE_TICKS = 120;
@@ -58,53 +58,84 @@ export const DC_TIER_CONFIGS: Record<DCTier, DCTierConfig> = {
   small: {
     tier: 'small',
     name: 'Small Data Center',
-    rackSlots: 12,
-    powerBudgetKW: 60,
-    baseCost: 10_000,
-    buildTimeTicks: 300,
-    firstBuildTimeTicks: 10,
+    rackSlots: 200,
+    powerBudgetKW: 1_000,
+    baseCost: 500_000,
+    buildTimeTicks: 600,
+    firstBuildTimeTicks: 30,
     requiredEra: 'startup',
     requiredResearch: null,
-    baseEnergyCostPerTick: 5,
+    baseEnergyCostPerTick: 50,
   },
   medium: {
     tier: 'medium',
     name: 'Medium Data Center',
-    rackSlots: 30,
-    powerBudgetKW: 200,
-    baseCost: 50_000,
-    buildTimeTicks: 900,
-    firstBuildTimeTicks: 900,
+    rackSlots: 500,
+    powerBudgetKW: 3_000,
+    baseCost: 2_000_000,
+    buildTimeTicks: 1200,
+    firstBuildTimeTicks: 1200,
     requiredEra: 'scaleup',
     requiredResearch: 'dc-engineering-ii',
-    baseEnergyCostPerTick: 15,
+    baseEnergyCostPerTick: 150,
   },
   large: {
     tier: 'large',
     name: 'Large Data Center',
-    rackSlots: 60,
-    powerBudgetKW: 500,
-    baseCost: 200_000,
-    buildTimeTicks: 1800,
-    firstBuildTimeTicks: 1800,
+    rackSlots: 1000,
+    powerBudgetKW: 7_000,
+    baseCost: 8_000_000,
+    buildTimeTicks: 2400,
+    firstBuildTimeTicks: 2400,
     requiredEra: 'bigtech',
     requiredResearch: 'dc-engineering-iii',
-    baseEnergyCostPerTick: 40,
+    baseEnergyCostPerTick: 400,
   },
   mega: {
     tier: 'mega',
     name: 'Mega Data Center',
-    rackSlots: 120,
-    powerBudgetKW: 1200,
-    baseCost: 1_000_000,
+    rackSlots: 1500,
+    powerBudgetKW: 12_000,
+    baseCost: 25_000_000,
     buildTimeTicks: 3600,
     firstBuildTimeTicks: 3600,
     requiredEra: 'agi',
     requiredResearch: 'dc-engineering-iv',
-    baseEnergyCostPerTick: 100,
+    baseEnergyCostPerTick: 1000,
   },
 };
 
+// --- Campus Costs (scale with DC tier) ---
+
+export const CAMPUS_TIER_COSTS: Record<DCTier, CampusTierCost> = {
+  small: { baseCost: 200_000, buildTimeTicks: 300 },
+  medium: { baseCost: 800_000, buildTimeTicks: 600 },
+  large: { baseCost: 3_000_000, buildTimeTicks: 900 },
+  mega: { baseCost: 10_000_000, buildTimeTicks: 1200 },
+};
+
+export const FIRST_CAMPUS_BUILD_TICKS = 15;
+
+// --- Cluster Costs (first is free) ---
+
+export const CLUSTER_COST_CONFIG: ClusterCostConfig = {
+  baseCost: 250_000,
+  buildTimeTicks: 600,
+};
+
+// --- Network Topology ---
+
+export const NETWORK_TOPOLOGY: NetworkTopologyConfig = {
+  tier1PerCompute: 24,
+  tier2PerTier1: 6,
+  tier3PerDC: 2,
+  tier1FailureRate: 0.0001,
+  tier2FailureRate: 0.00005,
+  tier3FailureRate: 0.00002,
+  tier1BlastRadius: 24,
+  tier2BlastRadiusMultiplier: 6,
+};
+
 // --- Rack SKU Configs ---
 
 export const RACK_SKU_CONFIGS: Record<RackSkuId, RackSkuConfig> = {
@@ -260,13 +291,15 @@ export const REDUNDANCY_FAILURE_REDUCTION = 0.5;
 export const DC_UPGRADE_COST_FRACTION = 0.25;
 export const DC_UPGRADE_INCREMENT = 0.1;
 
+export const COHORT_SCALE_FACTOR = 0.0003;
+
 export const FUNDING_ROUNDS = {
-  seed: { amount: 100_000, dilution: 0.10, requirements: { minRevenue: 100, minUsers: 0, minReputation: 0 } },
-  seriesA: { amount: 500_000, dilution: 0.15, requirements: { minRevenue: 500, minUsers: 100, minReputation: 20 } },
-  seriesB: { amount: 2_000_000, dilution: 0.12, requirements: { minRevenue: 5_000, minUsers: 1_000, minReputation: 30 } },
-  seriesC: { amount: 10_000_000, dilution: 0.10, requirements: { minRevenue: 50_000, minUsers: 10_000, minReputation: 40 } },
-  seriesD: { amount: 50_000_000, dilution: 0.08, requirements: { minRevenue: 500_000, minUsers: 50_000, minReputation: 50 } },
-  ipo: { amount: 200_000_000, dilution: 0.20, requirements: { minRevenue: 5_000_000, minUsers: 100_000, minReputation: 60 } },
+  seed: { amount: 500_000, dilution: 0.10, requirements: { minRevenue: 500, minUsers: 0, minReputation: 0 } },
+  seriesA: { amount: 2_000_000, dilution: 0.15, requirements: { minRevenue: 2_500, minUsers: 100, minReputation: 20 } },
+  seriesB: { amount: 10_000_000, dilution: 0.12, requirements: { minRevenue: 25_000, minUsers: 1_000, minReputation: 30 } },
+  seriesC: { amount: 50_000_000, dilution: 0.10, requirements: { minRevenue: 250_000, minUsers: 10_000, minReputation: 40 } },
+  seriesD: { amount: 200_000_000, dilution: 0.08, requirements: { minRevenue: 2_500_000, minUsers: 50_000, minReputation: 50 } },
+  ipo: { amount: 1_000_000_000, dilution: 0.20, requirements: { minRevenue: 25_000_000, minUsers: 100_000, minReputation: 60 } },
 } as const;
 
 export const OPEN_SOURCE_REPUTATION_BOOST = 8;

packages/shared/src/types/economy.ts

@@ -46,7 +46,7 @@ export interface FinancialSnapshot {
 }
 
 export const INITIAL_ECONOMY: EconomyState = {
-  money: 50_000,
+  money: 600_000,
   totalRevenue: 0,
   totalExpenses: 0,
   revenuePerTick: 0,
@@ -56,7 +56,7 @@ export const INITIAL_ECONOMY: EconomyState = {
     currentRound: null,
     completedRounds: [],
     founderEquity: 1.0,
-    valuation: 100_000,
+    valuation: 1_000_000,
     isPublic: false,
   },
   financialHistory: [],

packages/shared/src/types/gameState.ts

@@ -58,4 +58,4 @@ export const INITIAL_SETTINGS: GameSettings = {
   sfxVolume: 0.7,
 };
 
-export const SAVE_VERSION = 2;
+export const SAVE_VERSION = 3;

packages/shared/src/types/infrastructure.ts

@@ -1,9 +1,38 @@
 import type { Era } from './gameState';
 
+// --- Cluster (regional container) ---
+
+export type ClusterStatus = 'constructing' | 'operational';
+
+export interface Cluster {
+  id: string;
+  name: string;
+  locationId: LocationId;
+  campuses: Campus[];
+  status: ClusterStatus;
+  constructionProgress: number;
+  constructionTotal: number;
+}
+
+// --- Campus (holds same-tier DCs) ---
+
+export type CampusStatus = 'constructing' | 'operational';
+
+export interface Campus {
+  id: string;
+  name: string;
+  clusterId: string;
+  dcTier: DCTier;
+  dataCenters: DataCenter[];
+  status: CampusStatus;
+  constructionProgress: number;
+  constructionTotal: number;
+}
+
 // --- Data Center ---
 
 export type DCTier = 'small' | 'medium' | 'large' | 'mega';
-export type DCStatus = 'constructing' | 'operational';
+export type DCStatus = 'constructing' | 'operational' | 'retrofitting';
 
 export interface DCTierConfig {
   tier: DCTier;
@@ -21,19 +50,71 @@ export interface DCTierConfig {
 export interface DataCenter {
   id: string;
   name: string;
-  location: LocationId;
+  campusId: string;
   tier: DCTier;
   status: DCStatus;
   constructionProgress: number;
   constructionTotal: number;
-  racks: Rack[];
+  rackSkuId: RackSkuId | null;
+  computeRacksOnline: number;
+  computeRacksFailed: number;
+  networkHealth: NetworkHealthState;
+  deploymentCohorts: DeploymentCohort[];
+  retrofitState: RetrofitState | null;
   coolingLevel: number;
   redundancyLevel: number;
-  currentUptime: number;
-  energyCostPerTick: number;
-  maintenanceCostPerTick: number;
+  effectiveComputeRacks: number;
   usedSlots: number;
   usedPowerKW: number;
+  energyCostPerTick: number;
+  maintenanceCostPerTick: number;
+  currentUptime: number;
+}
+
+// --- Network Topology ---
+
+export interface NetworkHealthState {
+  tier1Required: number;
+  tier1Healthy: number;
+  tier2Required: number;
+  tier2Healthy: number;
+  tier3Required: number;
+  tier3Healthy: number;
+  racksDisconnected: number;
+}
+
+export interface NetworkTopologyConfig {
+  tier1PerCompute: number;
+  tier2PerTier1: number;
+  tier3PerDC: number;
+  tier1FailureRate: number;
+  tier2FailureRate: number;
+  tier3FailureRate: number;
+  tier1BlastRadius: number;
+  tier2BlastRadiusMultiplier: number;
+}
+
+export function networkSlotsRequired(computeRacks: number): number {
+  if (computeRacks <= 0) return 0;
+  const tier1 = Math.ceil(computeRacks / 24);
+  const tier2 = Math.ceil(tier1 / 6);
+  const tier3 = 2;
+  return tier1 + tier2 + tier3;
+}
+
+export function maxComputeRacks(totalSlots: number): number {
+  if (totalSlots <= 2) return 0;
+  let lo = 0;
+  let hi = totalSlots;
+  while (lo < hi) {
+    const mid = Math.ceil((lo + hi) / 2);
+    if (mid + networkSlotsRequired(mid) <= totalSlots) {
+      lo = mid;
+    } else {
+      hi = mid - 1;
+    }
+  }
+  return lo;
 }
 
 // --- Racks ---
@@ -70,43 +151,64 @@ export interface RackSkuConfig {
   repairCostFraction: number;
 }
 
-export interface Rack {
-  id: string;
-  skuId: RackSkuId;
-  dataCenterId: string;
-  isHealthy: boolean;
-}
+// --- Deployment Cohort (batch pipeline) ---
 
-export interface RackOrder {
+export interface DeploymentCohort {
   id: string;
+  count: number;
   skuId: RackSkuId;
-  dataCenterId: string;
   stage: PipelineStage;
   stageProgress: number;
   stageTotal: number;
-  totalCost: number;
   repairCount: number;
 }
 
+// --- Retrofit ---
+
+export interface RetrofitState {
+  fromSkuId: RackSkuId;
+  toSkuId: RackSkuId;
+  phase: 'decommissioning' | 'installing';
+  progress: number;
+  total: number;
+  racksRemaining: number;
+}
+
+// --- Campus Config ---
+
+export interface CampusTierCost {
+  baseCost: number;
+  buildTimeTicks: number;
+}
+
+// --- Cluster Config ---
+
+export interface ClusterCostConfig {
+  baseCost: number;
+  buildTimeTicks: number;
+}
+
 // --- Infrastructure State ---
 
 export interface InfrastructureState {
-  dataCenters: DataCenter[];
-  rackPipeline: RackOrder[];
+  clusters: Cluster[];
   totalFlops: number;
   totalUptime: number;
   totalRackCount: number;
+  totalComputeRackCount: number;
+  totalDataCenterCount: number;
 }
 
 export const INITIAL_INFRASTRUCTURE: InfrastructureState = {
-  dataCenters: [],
-  rackPipeline: [],
+  clusters: [],
   totalFlops: 0,
   totalUptime: 1,
   totalRackCount: 0,
+  totalComputeRackCount: 0,
+  totalDataCenterCount: 0,
 };
 
-// --- Locations (unchanged) ---
+// --- Locations ---
 
 export type LocationId = 'us-west' | 'us-east' | 'eu-west' | 'eu-north' | 'asia-east' | 'asia-south' | 'middle-east';