Talk:Upcoming Features/@comment-182.239.159.148-20111202014105/@comment-4575705-20111207150620

Accually, you can use your old map. You can get all the new stuff, but to do that you must defeat the Wall of Flesh. A message comes up saying "A balance of evil and good has been released upon the world" or something like that. Then you get into hardmode, where corruption spreads uncontrollably, and that the same with the Hallowed Biome. Try it out and see.