C3 In DS is a series of metarooms that use the Creatures 3 rooms (Norn Terrarium, Crypt, Grendel Jungle, Ettin Desert and the Marine Terrarium) as loose rooms for Docking Station. Creatures 3 is required. C3 In DS was created by Emmental (CAOS) and Data (sprites). The separate metarooms can be downloaded at Emmental's Docking Station Agents.