Hi all! I’ve been building Mycelium Incursion, a full commercial game in Three.js, and I’m heading for a Steam Next Fest demo in February 2027.
It’s an 80s-style arcade shooter (think Defender and Robotron) set inside an O’Neill-style cylinder colony:Gameplay Video 750,000 units long, with the ground curving up all around you and a whole city overhead.
Some of the fun problems:
- Rendering: WebGPU renderer (r174), instanced aliens and traffic, 60 fps on a MacBook Air with 200+ aliens on screen.
- Living in a cylinder: “up” is towards the axis, so flight physics, the camera and every AI behaviour work in cylindrical coordinates. Flips, loops and barrel rolls included.
- Video ads on a blimp: VideoTexture failed bind-group validation on WebGPU for us, so frames are copied to a canvas and uploaded as a CanvasTexture.
- Desktop: packaged with Electron for Windows and native Apple Silicon macOS.
Gameplay video: https://www.youtube.com/watch?v=e7zFOt-jQNE
Dev log and screenshots: White Magic World
Happy to go into detail on any of it, and thanks to everyone here whose answers got me unstuck along the way.
