Unreal -> boring as all hell in co-op mode Duke Nukem 3d -> as much fun as the game already is, with more people! Doom2 -> whole lot of fun, but tricky to setup theres also a couple spots where you can trigger a bridge before everyones ready and make it so you can't go any further, also blasting your friends in the back with the plasma rifle is hilarious Serious Sam: The Second Encounter -> probably the best co-op experience ever if you like extreme arcade style shooters That said I'll split the list up into good and bad (of what I can remember):
I'd like to preface by saying that some of my most fond LAN memories are playing co-op games with my friends in between Starcraft sessions. Alright this has been done to death, but I guess since this thread is already here I might as well reply.
