Very cool game. 😎
Tested on Linux Wayland with my RTX 3060 TI, and integrated intel gpu as well. Thanks to Bevy for great support, it works well.
Please add settings page to the menu, and being able to disable permanent gravity downwards would also be great + better control over the camera (e.g. freeview).
Honestly I would even pay for a game like this, be it more fleshed out.
It feels like it could become not only just a game, but also a great sandbox tool, similar to something like a SpaceEngine, that is more of a tool rather than a game.
Arbgeom has potential to explore so many different geometries, and even better if player is given more obvious control of the curvatures and explanations of them. A Level Editor would be even more insane.
No matter what plans you have for this "side project", you have not only my full support, but also of many other people who would flood this game if it is made properly and discovered, just because of how spacetime bending this already working concept is.
Can't even imagine how it would be on first release. 👍