I've been dying to play a good co-op game but i played the hell out of dark souls, portal, l4d, and the rest i have so i was wondering if anyone had any suggestions that i may have overlooked

killing floor
payday 2
team fortress 2
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i found this new indie game called Counter Strike Global Offensive you should check it out!

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Left4Dead
Portal 2
Resident Evil
Dead Island
Saints Row
Borderlands

Hi there

And you forgot Payday 2

Payday 2
Zombies on CoD: World at War or CoD: Black Ops (World at War has all of it's DLC free for PC. World at War you can also Coop the campaign.)
Killing Floor
Borderlands (I prefer the first one WAY more than any of the others)
Dying Light
GTA V
Insurgency
Men of War Assault Squad 2
Mount & Blade: Warband's Napoleonic DLC
Resident Evil 5
Resident Evil Operation Raccoon City
Ryse: Son of Rome
Sniper Elite V2
Sniper Elite 3
Sniper Elite Nazi Zombie Army Trilogy
Toy Soldiers Complete
Warhammer: End Times - Vermintide
Dead Space 3

Shadow Warrior 2's coop seems promising, though I don't believe the games out quite yet.

best list out here, take notes people

US Army

www.goarmy.com

Pretty much the opposite of a coop game because it's teammates that mostly shout and complain (in compet anyways).