A fan-made Rocket League clone which runs in the web browser.
Little more than mostly accurate Rocket-League-esque physics with some test graphics and controls slapped on top.
Right now, the physics are a direct fork of ZealanL's wonderful RocketSim (written in C++), compiled to JavaScript/WebAssembly with Emscripten and driven through custom JavaScript bindings using Embind.
If I continue development, I may make some improvements to the physics (wall curve bounces are the biggest offender right now). Additionally, I'd want to improve the graphics and controls to the point where it's a bearable analog to free play in Rocket League. A stretch goal would be to dig into netcode nastiness and try to get some rudimentary multiplayer going.