Talk:The Corruption/@comment-71.17.123.236-20120609223513/@comment-4674838-20120803061341

No, the Snow Biome is part of ordinary Terraria. During Christmas when patch 1.1.1 was released (between Dec. 15th - 31st), every new world created had a 100% chance of having a snow biome in it. During the rest of the year, you have a 33% chance of having a snow biome in your world.