Create 1 billion Fossil rooms

Create 1 billion Primal rooms

Create 1 billion Cell rooms

Create 1 billion Prehistoric rooms

Create 1 billion Primeval rooms

Create 1 billion Slimeling rooms

Create 1 billion Slime rooms

Create 1 billion Pawn rooms

Create 1 billion Cat rooms

Create 1 billion Rook rooms

Create 1 billion Knight rooms

Create 1 billion Princes rooms

Create 1 billion Bishop rooms

Create 1 billion Princess rooms

Create 1 billion King rooms

Create 1 billion Bomb rooms

Create 1 billion Queen rooms

Create 1 billion Ghost rooms

Create 1 billion Overlord rooms

Create 1 billion God rooms

Create 1 billion Demigod rooms

Create 1 billion Elder God rooms

Create 1 billion Old One rooms

Create 1 billion Outer God rooms

Create 1 billion Great Old One rooms

Create 1 billion Deep One rooms

Create 1 billion Shoggoth rooms

Create 1 billion Cthulhu rooms