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Monopoly Gaming Platform - Microservices Architecture

Game Engine Purpose & Role 🎮

Game Engine Responsibilities:

  • Core Game Logic: Monopoly rules, board state, player actions
  • Real-time Gameplay: WebSocket connections for live multiplayer
  • Game State Management: Turn management, dice rolling, property transactions
  • Rule Enforcement: Validate moves, handle bankruptcies, determine winners
  • Event Broadcasting: Notify all players of game state changes

What Game Engine Does NOT Handle:

  • User authentication (separate service)
  • Player matchmaking (separate service)
  • Persistent user profiles (separate service)
  • Notifications outside game (separate service)

Complete Microservices Architecture

┌─────────────────────────────────────────────────────────────────────────────────────────┐
│                           MONOPOLY GAMING PLATFORM                                       │
│                              Microservices on Kubernetes                                 │
└─────────────────────────────────────────────────────────────────────────────────────────┘

┌─────────────────────────────────────────────────────────────────────────────────────────┐
│                                FRONTEND LAYER                                            │
├─────────────────────────────────────────────────────────────────────────────────────────┤
│  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐                         │
│  │   Web Client    │  │  Mobile App     │  │   Admin Panel   │                         │
│  │   (React SPA)   │  │  (React Native) │  │   (Vue.js)      │                         │
│  └─────────────────┘  └─────────────────┘  └─────────────────┘                         │
└─────────────────────────────────────────────────────────────────────────────────────────┘
                                        │
                                        ▼
┌─────────────────────────────────────────────────────────────────────────────────────────┐
│                              API GATEWAY LAYER                                           │
├─────────────────────────────────────────────────────────────────────────────────────────┤
│  ┌─────────────────────────────────────────────────────────────────────────────────┐   │
│  │                            API Gateway                                           │   │
│  │  • Route requests to microservices                                              │   │
│  │  • Authentication & authorization                                               │   │
│  │  • Rate limiting & throttling                                                   │   │
│  │  • Request/response transformation                                              │   │
│  │  • Load balancing                                                               │   │
│  └─────────────────────────────────────────────────────────────────────────────────┘   │
└─────────────────────────────────────────────────────────────────────────────────────────┘
                                        │
                                        ▼
┌─────────────────────────────────────────────────────────────────────────────────────────┐
│                              CORE MICROSERVICES                                          │
├─────────────────────────────────────────────────────────────────────────────────────────┤
│                                                                                         │
│  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐   │
│  │  1. GAME ENGINE │  │ 2. MATCHMAKING  │  │ 3. USER SERVICE │  │ 4. NOTIFICATION │   │
│  │                 │  │                 │  │                 │  │    SERVICE      │   │
│  │ • Game logic    │  │ • Player pairing│  │ • Authentication│  │ • Push messages │   │
│  │ • Board state   │  │ • Lobby mgmt    │  │ • User profiles │  │ • Email alerts  │   │
│  │ • Turn mgmt     │  │ • Skill matching│  │ • Friend system │  │ • SMS alerts    │   │
│  │ • Rule enforce  │  │ • Queue system  │  │ • Preferences   │  │ • In-game chat  │   │
│  │ • WebSocket     │  │ • Game creation │  │ • Statistics    │  │ • Real-time     │   │
│  └─────────────────┘  └─────────────────┘  └─────────────────┘  └─────────────────┘   │
│                                                                                         │
│  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐   │
│  │ 5. LEADERBOARD  │  │ 6. TOURNAMENT   │  │ 7. PAYMENT      │  │ 8. ANALYTICS    │   │
│  │    SERVICE      │  │    SERVICE      │  │    SERVICE      │  │    SERVICE      │   │
│  │                 │  │                 │  │                 │  │                 │   │
│  │ • Global ranks  │  │ • Tournament    │  │ • In-app        │  │ • Player        │   │
│  │ • Player stats  │  │   creation      │  │   purchases     │  │   behavior      │   │
│  │ • Achievements  │  │ • Bracket mgmt  │  │ • Subscription  │  │ • Game metrics  │   │
│  │ • Seasonal      │  │ • Prize pools   │  │ • Refunds       │  │ • Performance   │   │
│  │   competitions  │  │ • Live events   │  │ • Billing       │  │ • A/B testing   │   │
│  └─────────────────┘  └─────────────────┘  └─────────────────┘  └─────────────────┘   │
└─────────────────────────────────────────────────────────────────────────────────────────┘
                                        │
                                        ▼
┌─────────────────────────────────────────────────────────────────────────────────────────┐
│                              SUPPORTING SERVICES                                         │
├─────────────────────────────────────────────────────────────────────────────────────────┤
│                                                                                         │
│  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐  ┌─────────────────┐   │
│  │ 9. CONFIG       │  │10. AUDIT/LOG    │  │11. FILE STORAGE │  │12. HEALTH CHECK │   │
│  │    SERVICE      │  │    SERVICE      │  │    SERVICE      │  │    SERVICE      │   │
│  │                 │  │                 │  │                 │  │                 │   │
│  │ • Game configs  │  │ • Audit trails  │  │ • Avatar images │  │ • Service       │   │
│  │ • Feature flags │  │ • Security logs │  │ • Game assets   │  │   monitoring    │   │
│  │ • A/B test      │  │ • Compliance    │  │ • Screenshots   │  │ • Dependency    │   │
│  │   settings      │  │ • Player        │  │ • Replay files  │  │   checks        │   │
│  │ • Dynamic       │  │   actions       │  │ • Backups       │  │ • Circuit       │   │
│  │   pricing       │  │ • System events │  │                 │  │   breakers      │   │
│  └─────────────────┘  └─────────────────┘  └─────────────────┘  └─────────────────┘   │
└─────────────────────────────────────────────────────────────────────────────────────────┘

Microservices Deployment Plan

Phase 1: MVP (4 Services)

essential_services:
  1. game-engine:      "Core gameplay logic"
  2. user-service:     "Authentication & profiles"
  3. matchmaking:      "Player pairing"
  4. api-gateway:      "Request routing"

deployment_target: "Development EKS cluster"
timeline: "Month 1"

Phase 2: Enhanced Gaming (8 Services)

additional_services:
  5. notification:     "Real-time alerts"
  6. leaderboard:      "Rankings & stats"
  7. tournament:       "Competitive events"
  8. analytics:        "Player insights"

deployment_target: "Development + Staging"
timeline: "Month 2-3"

Phase 3: Production Ready (12+ Services)

production_services:
  9. payment:          "Monetization"
  10. config:          "Dynamic configuration"
  11. audit:           "Compliance & logging"
  12. file-storage:    "Asset management"
  13. health-check:    "Service monitoring"

deployment_target: "Multi-cloud production"
timeline: "Month 4-6"

Service Communication Patterns

Synchronous Communication (REST APIs)

API Gateway → User Service (authentication)
API Gateway → Matchmaking (find games)
Game Engine → User Service (player validation)
Leaderboard → User Service (player stats)

Asynchronous Communication (Events)

Game Engine → Analytics (game events)
Game Engine → Notification (game updates)
Tournament → Leaderboard (tournament results)
Payment → User Service (subscription updates)

Real-time Communication (WebSocket)

Game Engine ↔ Players (live gameplay)
Notification ↔ Players (instant alerts)
Tournament ↔ Players (live events)

Resource Requirements per Service

High Resource Services

game-engine:
  cpu: "500m-1000m"
  memory: "512Mi-1Gi"
  replicas: "3-10 (auto-scale)"
  reason: "Real-time gameplay, WebSocket connections"

analytics:
  cpu: "200m-500m"
  memory: "1Gi-2Gi"
  replicas: "2-5"
  reason: "Data processing, metrics aggregation"

Medium Resource Services

user-service:
  cpu: "200m-500m"
  memory: "256Mi-512Mi"
  replicas: "2-5"

matchmaking:
  cpu: "200m-400m"
  memory: "256Mi-512Mi"
  replicas: "2-4"

Low Resource Services

config-service:
  cpu: "100m-200m"
  memory: "128Mi-256Mi"
  replicas: "2-3"

health-check:
  cpu: "50m-100m"
  memory: "64Mi-128Mi"
  replicas: "2"

Database Strategy per Service

Dedicated Databases

user-service:     "PostgreSQL (user profiles, auth)"
game-engine:      "Redis (game state) + PostgreSQL (history)"
analytics:        "ClickHouse (time-series data)"
payment:          "PostgreSQL (transactions, compliance)"

Shared Databases

leaderboard:      "Shared PostgreSQL (read replicas)"
tournament:       "Shared PostgreSQL"
notification:     "Redis (temporary) + PostgreSQL (history)"

Development Roadmap

Current Status: 1/12 Services

  • ✅ Game Engine: Deployed and working
  • 🚧 User Service: Next priority
  • 📋 Matchmaking: After user service
  • 📋 API Gateway: Infrastructure component

Next Steps:

  1. Deploy User Service (authentication & profiles)
  2. Deploy Matchmaking Service (player pairing)
  3. Add API Gateway (NGINX or Kong)
  4. Integrate services (service-to-service communication)

This microservices architecture provides scalability, maintainability, and independent deployment capabilities for your global gaming platform!