This game is powered by SpaceTimeDB which is a realtime SQL database, it seems very interesting and was actually the reason I tried out Bitcraft.

SpacetimeDB has enabled us to build our massively multiplayer game, BitCraft, with a small team. Its entire backend, including all game logic, real-time player positions, and all persistent state, is implemented as a SpacetimeDB module.

So this game is also kind of a demo of this “Supabase but for games” VC funded startup.