Discounted Online Co-Op Games on Steam

Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated online co-op games.

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Painkiller Hell & Damnation Evil has returned! Demonic powers are manifesting themselves as a myriad of dark creatures, fighting over the fates of imprisoned souls caught in Purgatory.

Price -92% 1.73€
Rating 7.6
Release 31 Oct 2012
Natural Selection 2 A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Price -22% 3.91€
Rating 8.3
Release 30 Oct 2012
Guns of Icarus Online Assemble your crew, take to the skies in the premier PvP airship combat game. Guns of Icarus Online is all about flying massive airships, shooting big turret weapons, and working as a team for supremacy of the skies. Everyone as one, victory or death, together.

Price -91% 0.49€
Rating 8.8
Release 29 Oct 2012
Torchlight II The adventure continues in Torchlight II! An Action RPG filled with epic battles, bountiful treasure, and a fully randomized world. Bring your friends along for the journey with online and LAN multiplayer.

Price -98% 0.51€
Rating 9.1
Release 20 Sep 2012
Borderlands 2 The Ultimate Vault Hunter’s Upgrade lets you get the most out of the Borderlands 2 experience.

Price -98% 0.64€
Rating 9.2
Release 20 Sep 2012
Critter Crunch Using Critter Crunch's 'Food Chain' mechanic, players will eat their way through a smorgasbord of levels and gorge on a feast of modes, including Co-op and Versus multiplayer.

Price -80% 0.99€
Rating 8.7
Release 11 Sep 2012
Tower Wars Tower Wars combines elements of tower defense, RTS, and all-out multi-player mayhem to bring you a completely unique experience, delivered with a fun and funny not-so-old world style!

Price -41% 4.75€
Rating 7.0
Release 14 Aug 2012
Iron Brigade Join The Mobile Trench Brigade and protect humanity from the evil Monovision menace!

Price -83% 2.65€
Rating 8.1
Release 13 Aug 2012
Orcs Must Die! 2 You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.

Price -93% 0.98€
Rating 9.1
Release 30 Jul 2012
Sins of a Solar Empire®: Rebellion Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.

Price -86% 2.61€
Rating 9.1
Release 12 Jun 2012
Sonic the Hedgehog 4 - Episode II The Sonic 4 Saga continues in Episode II with the return of a beloved side kick and fan-favorite villains! Following the events of Episode I, Metal Sonic has returned to form an alliance with Dr. Eggman! To face this new evil, Sonic will have to call upon an old friend to help him save the day!

Price -78% 2.26€
Rating 7.2
Release 14 May 2012
A Total War Saga: FALL OF THE SAMURAI Experience the dramatic conflict of samurai culture and modern weaponry between the Imperial throne and the last Shogunate in 19th century Japan.

Price -81% 5.99€
Rating 6.7
Release 22 Mar 2012
Earth Defense Force: Insect Armageddon Thousands of giant insects and aliens once again ravage the earth, and only the Earth Defense Force can stop them.

Price -34% 6.62€
Rating 8.3
Release 14 Dec 2011
Serious Sam 3: BFE Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter!

Price -97% 1.06€
Rating 8.7
Release 22 Nov 2011
Saints Row: The Third Get ready for the most out-landish gameplay scenarios ever seen as the Third Street Saints take on the Syndicate!

Price -90% 1.00€
Rating 9.4
Release 17 Nov 2011
Call of Duty®: Modern Warfare® 3 (2011) The best-selling first-person action series of all-time returns with an epic sequel to the multiple GOTY award winner Call of Duty®: Modern Warfare® 2

Price -2% 39.51€
Rating 8.4
Release 07 Nov 2011
Renegade Ops Blast your way through enemy lines to defeat Inferno, a madman intent on global domination. Destruction just got awesome.

Price -57% 5.65€
Rating 8.2
Release 26 Oct 2011
PAYDAY™ The Heist Take on the role of a hardened career criminal executing intense, dynamic heists in constant pursuit of the next “big score”

Price -67% 4.94€
Rating 9.2
Release 20 Oct 2011
Dungeon Defenders Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!

Price -80% 2.95€
Rating 9.1
Release 18 Oct 2011
Dead Rising 2: Off the Record You are Frank West – photojournalist and original hero of the Dead Rising Willamette incident – taking center stage experiencing the re-imagined Fortune City outbreak.

Price -98% 0.54€
Rating 7.5
Release 11 Oct 2011
RAGE Powered by id’s revolutionary id Tech® 5 technology, RAGE is an intense first-person shooter with breakneck vehicle combat, an expansive world to explore, and jaw-dropping graphics!

Price -74% 2.64€
Rating 7.6
Release 03 Oct 2011
Worms Ultimate Mayhem Load your weapons and experience a whole new dimension in destructive turn-based cartoon action!

Price -96% 0.61€
Rating 8.6
Release 28 Sep 2011
Supreme Commander: Forged Alliance The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike.

Price -80% 1.99€
Rating 9.4
Release 28 Sep 2011
Warhammer 40,000: Space Marine - Anniversary Edition In Warhammer 40,000 Space Marine you are Captain Titus, a Space Marine of the Ultramarines chapter and a seasoned veteran of countless battles.

Price -87% 4.81€
Rating 9.0
Release 05 Sep 2011

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816,873 players

7,642,084
1,173,003
Rating 8.6

464,325 players

2,037,143
461,826
Rating 8.1

257,103 players

272,952
38,779
Rating 8.7

128,641 players

1,373,979
35,494
Rating 9.7

120,634 players

228,817
58,752
Rating 7.9

74,530 players

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156,649
Rating 8.7

58,452 players

630,223
166,993
Rating 7.9

56,118 players

545,393
81,110
Rating 8.6

55,519 players

1,172,854
225,730
Rating 8.3

54,737 players

736,688
23,974
Rating 9.6