A new 1.3 updated for Terraria not only simplifies the multi-player set-up on PC but also adds lots of items and content.
Terraria is a game a bit like Minecraft but in two dimensions. It sounds, I know, like a backwards step. A similar backwards step to those blocky Minecraft visuals perhaps. In similar fashion, having just two dimensions has in no way limited Terraria -- either its creative experience or popularity.