Chunki
A shared 3D world you build block by block, with everyone's changes showing up in real time.
- Status
- Live
- Platform
- Web (WebGL)
- Built with
- Solid.js, Three.js, Go, WebSockets, MongoDB, Redis
What it is
A collaborative voxel canvas. Explore the main world, start one of your own and watch other players build next to you as it happens. Sign in with X or Discord, or just play anonymously.
How it works
place a block → WebSocket → validate and batch → broadcast to that chunk
The Solid.js and Three.js client renders the world in WebGL. A Go server checks every placement against cooldowns and world limits, keeps hot chunks in Redis and an in-memory LRU cache with RLE compression, and flushes them to MongoDB.
Details
- Updates are batched per chunk for 50 ms before they are broadcast.
- Placement uses token-bucket cooldowns in Redis; the API is rate limited per IP.
- Chat is filtered on the server against a curated blocklist.
- Each world gets a share card rendered with headless Chromium.
