Co-op Games?

Can anyone name some relative recent games that have worthwile co-op for the pc? I can only think of a few, Rainbow Six Vegas, Gears of War, and Doom 3 with mods. Any others? Within the past 4 or 5 years is okay unless its a really great co-op oldie.Co-op Games?
you could get half life 2 and use mods to play online co-opCo-op Games?
I was thinking about the same thing recently. I did a search for past threads and found some interesting finds. Popular recommendations include Serious Sam I %26 II, Neverwinter Nights (both again), any RTS (or Civ game). I personally think that Battlefield 2, while not a challenge, is fun versus bots. You can pick it up for $10 on newegg, which is well worth it.
Check out Serious Sam.
Operation Flashpoint/Armed Assault.



They have map editors, so you can easily churn out some co-op missions and try to play through them with your friends.
the last two Splinter Cell games were co-op (chaos theory and double agent)i havnt played either but they look pretty fun. lol and if you wanna go way back a bit, Aliens Versus Predator 2 had a sick co-op mod. theres also one for Far Cry, but its buggy as hell last time i checked.
If I'm not mistaken there's a co-op mod for Oblivion...not sure on that though.
Swat 4 + Expansion.It takes a bit of patience, but can be pretty satisfying if you can get into it.
I'm having a blast going through Titan Quest with my fiance. The game is much better when going through in co-op.
Took us a while but its well worthgetting the Far-Cry co-op mod working. :)
[QUOTE=''ollism'']Took us a while but its well worthgetting the Far-Cry co-op mod working. :)[/QUOTE]QFT. Co-Op assault is an extremely fun co-op mod. I never heard of an oblivion co-op mod that worked. I would be very interested to see though...