Theory Interactive's debut release Reset isn't exactly a first-person shooter but the debut trailer for their upcoming game is so moving and well done that we just had to share it.
Reset is a first-person game, in which players must solve puzzles from the first-person perspective. Theory Interactive, the studio working on Reset, have seemingly created a genre to accomodate Reset - Singleplayer Co-op. Now, chances are you're thinking, "How can a game be single-player and co-op?" By definition, those two terms completely contradict each other but Theory Interactive makes it work. In Reset, players utilize an ingenius game mechanic to go back in time and solve puzzles cooperatively with yourself.