Dragonlord Official Terrarian May 21, 2017 #2 I don't think it is a possible option currently in Terraria.
Sigma90 Brain of Cthulhu May 23, 2017 #3 You need to adjust your config file manually to enable world seeds. There are instructions on how to do so in the thread Experimental Features.
You need to adjust your config file manually to enable world seeds. There are instructions on how to do so in the thread Experimental Features.