Time Rifters 4.5

Time Rifters is a single-player co-op shooter game. You have 4 lives, in which you should destroy as many enemies as possible. With each new life you’ll be joined by ghosts of your previous lives. The Let’s Replay mode lets you play with other people’s ghosts that have been uploaded to the Steam Workshop. You get access to 6 upgradable weapons, and 3 episodes with 5 arenas each.