High Quality Content by WIKIPEDIA articles! Creatures is an artificial life (alife) computer program series, created in the mid-1990s by English computer scientist Steve Grand whilst working for the Cambridge computer games developer Millennium Interactive. Gameplay focuses on raising alien creatures known as Norns, teaching them to survive, helping them explore their world, defending them against other species, and breeding them. Rather than taking a scripted approach, Creatures series games were driven by detailed biological and neurological simulation and their unexpected results.