There is a game HyperRogue https://www.roguetemple.com/z/hyper/ (one of my favorite, vide https://medium.com/quantum-photons/to-make-a-cool-game-you-f...).
One of its zones, living cave, as a cellular automaton in hyperbolic space. Its walls live.
One of its zones, living cave, as a cellular automaton in hyperbolic space. Its walls live.
Interesting.... Not that relativity makes a whit of sense anyway, but that's an intriguing video (edit: wouldn't want to play it though)