Warhammer 40K: Darktide Developer: Fatshark Publisher: Fatshark Release Date: 2021 Rating: M for Mature Platforms: PC, Xbox Series X, Warhammer 40K: Darktide is a 4-player co-op shooter set within the 40K universe from the developers of Warhammer: Vermintide and Vermintide 2. It takes place on Tertium, a hive city.