SpacetimeDB lets you build multiplayer games and apps by writing just the server logic - it automatically generates type-safe client SDKs and handles real-time sync across devices

Ever tried building a multiplayer game or collaborative app? You know the drill: set up WebSocket connections, handle state synchronization, write client-server communication code, debug race conditions at 3 AM. SpacetimeDB flips this model entirely - you write your business logic once as database modules, and it automatically generates type-safe client libraries that stay in perfect sync.

Built in Rust with 20K+ stars, SpacetimeDB combines a relational database with automatic client SDK generation for multiple languages. Your server logic becomes database stored procedures that clients can call directly, while SpacetimeDB handles all the networking, caching, and real-time updates. Think Firebase’s real-time magic meets PostgreSQL’s querying power, but designed specifically for games and collaborative apps where consistency matters.

Whether you’re building an MMO, a collaborative editor, or any app where multiple users need to see the same state instantly, SpacetimeDB eliminates the typical client-server boilerplate. The active Discord community and comprehensive docs make it surprisingly approachable, even if the concept sounds like wizardry at first glance.

⭐ Stars: 20471
💻 Language: Rust
🔗 Repository: clockworklabs/SpacetimeDB