Minetest is a FOSS alternative to Minecraft, and has just received a major update. Follow at:
➡️ @Minetest
It's available for Linux, Mac, Windows, Android and BSD from the official site:
The update makes it much easier to access game modes and mods. If you haven't tried it in a while, it might be worth another look.
Also check out this world-building project called Illuna:
https://share.tube/videos/watch/d84239ab-55c0-4c19-bf5e-e1dd6a7b4b17