SpacetimeDB ThreeJS Support

3 days ago

SpacetimeDB 2.0 is a database where game logic runs directly inside it, streaming state changes to clients like Three.js front ends.
It uses tables for world state (players, entities, transforms, systems), reducers for mutations (movement, damage, spawning), and views for read-only data.
Three.js clients subscribe to tables/views over WebSockets, receiving fine-grained diffs instead of polling an API.
The server acts as the authoritative world simulator, while the client focuses on rendering and interpolation.
Common workflows like 'entity moved' or 'player joined' map naturally to updating Three.js scenes.
Ideal for low-latency, synchronized 3D state applications: multiplayer games, collaborative editors, shared visualizations, or virtual worlds.
SpacetimeDB offers a generous free tier and a paid tier starting at $25/month with higher limits.

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