Real-time Multiplayer Ping-Pong Game

I built a real-time multiplayer Pong game with a couple of friends, The stack is NestJS/TypeScript for the backend with PostgreSQL handling the data. Everything runs with a simple docker-compose up –build.

What’s in it:

• Full OAuth login through 42 intranet
• Two-factor auth for the security-conscious
• User profiles with stats, match history and achievements
• Public/private/password-protected chat channels
• Direct messaging with friend status tracking
• Admin controls for channel management
• Classic Pong gameplay faithful to the 1972 original
• Matchmaking system that pairs players in queue

Took security seriously with hashed passwords, SQL injection protection, and server-side validation. Works smoothly on Chrome and Firefox and used WebSockets for real-time game synchronization.

I learned a ton about WebSockets and real-time game synchronization. Still tweaking the gameplay latency when I have time.