Game Night!: This weekend! https://www.facebook.com/events/317792721696252/
This game would be 10x better co-op, iit supports split screen, one of the very few PC games to do so. Its a throwback to Doom, so its just mindless shooting but it is fun for awhile. I played it solo, so it got boring, but co-op would help a lot.
Game Traits applied to Serious Sam: The First Encounter (PC) by redman223