Jonathan Chey, the Irrational co-founder with credits that go all the way back to the original Thief, has been thinking about BioShock again—where he served as the director of development. BioShock might be deep in his past, but at his studio Blue Manchu he's continued to explore one of PC Gamer's favourite genres : the glorious immersive sim. Specifically, he's been thinking about how to make something "radically different" from the many imsims he's been involved with, and to answer the question: "But why is that interesting?" Blue Manchu's new imsim, Godzone 6 , is in part a response to this problem—or at least it posits a solution. It is unabashedly an imsim, but one that takes a lot from roguelikes and deckbuilders. "I think the roguelike formula really helps with that, because it compresses the replay cycle," Chey says.…