If two wheels are spun on a common axis, the mutual gravitational attraction between the two wheels will be greater if they spin in opposite directions than in the same direction. https://en.wikipedia.org/wiki/Gravitoelectromagnetism#Higher-order_effects
I made a demo: https://willwhiteneck.itch.io/xmoon-demo
I added my game to Game Jolt. I hadn't heard of it before yesterday, but it seems like a cool community. https://gamejolt.com/games/xMoon/419212
I made a new Trailer! Check it out: https://youtu.be/pV6MurftivY
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