Dungeon Crawl

A hand-built WebGPU engine in Go, compiled to WebAssembly. A few things it can drive:

• Coin collector

  A platformer character in a walled arena of bouncing coins — the physics package (integration, AABB/circle collision, pixel-mask pickup) end to end.

• Dungeon Crawl

  The full app: passkey sign-in, then a real-time multiplayer arena against an authoritative server — prediction, interpolation, and server-judged sword hits over WebTransport.

• UI showcase

  The immediate-mode widget toolkit in ui/: every widget in every state, text measured and centred, nine-slices stretched to extremes — plus a browser for the sprite sheet that hands you the cell coordinates.

• Stress test

  Up to 100k textured orbs in a single instanced draw call — where the GPU gives out (overdraw), not the CPU.

• Many draws

  The opposite extreme: thousands of individual draw calls, exercising the CPU-bound syscall/js boundary.