Check out the release window trailer for Atomic Heart, the mysterious first-person shooter from developer Mundfish. We're starting to learn a bit more about it, though. The team describes the game as "an action-packed first-person shooter set in the alternative, retro-future version of the 1950s USSR." Atomic Heart will be out for PC, PlayStation 5, PlayStation 4, Xbox Series X|S, and Xbox One. And yes, if that soundtrack sounds a bit familiar, it's because it is indeed being done by Mick Gordon (Doom, Doom Eternal).