Best Co-op Steam Games on Sale

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

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Natural Selection 2 A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Price -82% 0.92€
Rating 8.3
Release 30 Oct 2012
Primal Carnage A savage online shooter, where players do battle as man or beast in class-based deathmatches and a frantic escape mode. Unleash your inner dinosaur!

Price -65% 2.86€
Rating 7.5
Release 29 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 -92% 0.44€
Rating 8.8
Release 29 Oct 2012
Chivalry: Medieval Warfare Besiege castles and raid villages in Chivalry: Medieval Warfare, a fast-paced medieval first person slasher with a focus on multiplayer battles

Price -97% 0.72€
Rating 8.1
Release 16 Oct 2012
Rocketbirds: Hardboiled Chicken Annihilate an evil penguin regime in this cinematic platform adventure game offering full solo and co-op campaigns.

Price -90% 0.50€
Rating 7.7
Release 15 Oct 2012
Worms Revolution Worms™ Revolution is the latest game in the classic turn-based strategy series to come to the PC.

Price -97% 0.45€
Rating 8.5
Release 10 Oct 2012
Dogfight 1942 Piloting a wide range of aircraft, players engage in aerial dogfights and dangerous fighter missions across the major theaters of war during WWII.

Price -92% 0.84€
Rating 7.5
Release 21 Sep 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 -97% 0.65€
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
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 -46% 4.35€
Rating 7.0
Release 14 Aug 2012
Iron Brigade Join The Mobile Trench Brigade and protect humanity from the evil Monovision menace!

Price -84% 2.50€
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 -97% 0.46€
Rating 9.1
Release 30 Jul 2012
Prototype 2 Become the ultimate shape-shifting weapon!

Price -70% 8.99€
Rating 7.5
Release 26 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 -90% 2.05€
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 -80% 2.01€
Rating 7.2
Release 14 May 2012
Aliens: Colonial Marines Collection You & your friends are the deadliest killers in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.

Price -84% 4.86€
Rating 6.0
Release 01 May 2012
Binary Domain Set in futuristic Tokyo, take control of the robotic community before they control everything!

Price -96% 0.68€
Rating 8.3
Release 26 Apr 2012
Insanely Twisted Shadow Planet In this Insanely Twisted, 2-D action-adventure game, explore unique environments and battle bizarre creatures.

Price -95% 0.78€
Rating 8.2
Release 17 Apr 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
Wargame: European Escalation The New Fatal Error DLC includes a new 5-mission Operation and touch-screen controls.

Price -90% 1.03€
Rating 7.6
Release 22 Feb 2012
The Darkness II An intense first person shooter that delivers a twisted and gripping narrative of tragedy, modern crime drama, and supernatural horror.

Price -97% 1.14€
Rating 9.0
Release 09 Feb 2012
Shank 2 The fan-favorite 2D brawler is back as ex-mob hit man Shank returns to action in Shank 2. With those closest to him under attack, Shank is once again forced on the offensive. Now he must put his trusty arsenal of handguns, shotguns, automatic weapons, chainsaws, machetes, grenades, plus all-new weaponry and moves to use in order to...

Price -90% 1.06€
Rating 8.0
Release 07 Feb 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 -54% 4.68€
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 -96% 1.20€
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 -92% 0.89€
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 -50% 19.99€
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 -80% 2.71€
Rating 8.2
Release 26 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% 0.55€
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% 2.67€
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 -94% 0.85€
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
Supreme Commander For a thousand years, three opposing forces have waged war for what they believe is true. There can be no room for compromise: their way is the only way. Dubbed The Infinite War, this devastating conflict has taken its toll on a once-peaceful galaxy and has only served to deepen the hatred between the factions.

Price -80% 1.99€
Rating 8.6
Release 28 Sep 2011
Men of War: Vietnam Men of War: Vietnam brings the acclaimed real-time tactics series into a new theater of war – the jungles of Southeast Asia, 1968. Experience the chaos of the Vietnam War through two story-driven campaigns that reveal both sides of the conflict.

Price -91% 0.74€
Rating 6.3
Release 08 Sep 2011
Rock of Ages A rock-solid combination of rock-rolling action, deep strategy, and captivating art and music from different ages of history, this is a game of crush or be crushed!

Price -96% 0.46€
Rating 8.8
Release 07 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 -86% 5.39€
Rating 9.0
Release 05 Sep 2011
ARMA: Gold Edition ARMA: Gold is pack of ARMA: Armed Assault and an expansion pack ARMA: Queen's Gambit. ARMA is a first person tactical military shooter with large elements of realism and simulation. This game features a blend of large-scale military conflict spread over large areas alongside the more closed quarters battle.

Price -71% 2.37€
Rating 7.3
Release 13 Jul 2011

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