I’m glad you like the game! The last beta release was in 2017, so it’s really not under active development any more. I would like to pick it up again some day, but it might be a year or two before that happens. If it does, it’s quite likely that the API would change significantly. I have a branch where all the default in-game code is ported to Fennel instead of being written in Lua, though Lua is still available. We’ll see!