Parasy
Brain of Cthulhu
Basically, the players could go back to versions such as 1.2, 1.1 and even prehardmode updates like 1.0.5, like in Minecraft. It would have all the functions of the original - maybe some bug fixes for the most crippling glitches - and would mainly exist to preserve nostalgia.
I don't know if this already has been posted, so.. sorry if it was.
I don't know if this already has been posted, so.. sorry if it was.