Terraria replacement?

I'm a big fan of Terraria and wanted to ask if there's a replacement (apart from Minecraft).

I would be very happy to receive an answer.

First the TModLoader. If you have Terraria on Steam, you can get the TModLoader there for free, with which you can play the game again with mods. Otherwise there would be Starbound, which is similar, only in certain things, for example in the story or the number of worlds.