Co-op · Moddable games to play together

104 Co-op · Moddable games your group can play together online, including RUNNING WITH RIFLES, Robot Roller-Derby Disco Dodgeball, and Door Kickers.

All games: 24

RUNNING WITH RIFLES

RUNNING WITH RIFLES is a top-down tactical shooter with open world RPG elements. In RWR, you join the ranks of an army as a common soldier, just like the thousands around you.

87% positive of 14,708 reviewsPlaying now: 43$14.99

Robot Roller-Derby Disco Dodgeball

A futuresport FPS where you race around a skate park / dance club and nail each other with dodgeball trick shots

91% positive of 2,269 reviewsPlaying now: 5$2.99

Boring Man - Online Tactical Stickman Combat

Battle other 2D stickfigures online while jumping around like a lunatic and getting blown up into smithereens. With over 70 weapons, Boring Man is the most chaotic and hilarious 2D online shooter on the internet.

88% positive of 5,419 reviewsPlaying now: 5Free

Construction Simulator 2015

In Construction Simulator 2015, you take the controls of 16 realistic construction machines made by LIEBHERR, STILL and MAN with high-quality 3D graphics.

78% positive of 4,599 reviewsPlaying now: 22$14.99

Toribash

Toribash is an innovative free-to-play online turn-based fighting game where you’re able to design your own moves. Complete control over character's body, hundreds of game mods and bloody mess with full body dismemberment - you've never been able to annihilate your enemies like that before!

88% positive of 16,851 reviewsPlaying now: 69Free

Arma 3

Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.

90% positive of 231,752 reviewsPlaying now: 11,505$29.99

Age of Wonders III

Age of Wonders III is the long anticipated sequel to the award-winning strategy series. Delivering a unique mix of Empire Building, Role Playing and Warfare, Age of Wonders III offers the ultimate in turn-based fantasy strategy for veterans of the series and new players alike!

81% positive of 7,090 reviewsPlaying now: 185$29.99

Original War: Shared-Control RTS Battles With Friends

Join an online or LAN team match in Original War, where named specialists, base building, and map-specific rules turn a retro RTS into a hands-on group effort.

94% positive of 1,820 reviewsPlaying now: 44$9.99

Total War: ROME II - Emperor Edition

Emperor Edition is the definitive edition of ROME II, featuring an improved politics system, overhauled building chains, rebalanced battles and improved visuals in both campaign and battleEmperor Edition contains all free feature updates since its release in 2013, which includes bug fixes, balancing, Twitch.

83% positive of 58,590 reviewsPlaying now: 6,213$29.99

Europa Universalis IV

Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.

75% positive of 106,984 reviewsPlaying now: 8,345$49.99

Natural Selection 2

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

85% positive of 8,647 reviewsPlaying now: 142$4.99

STAR WARS™ Empire at War - Gold Pack

Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld?

97% positive of 36,315 reviewsPlaying now: 1,950$19.99

Arma 2: Operation Arrowhead

Three years after the conflict in Chernarus, portrayed in the original Arma 2, a new flashpoint explodes in the Green Sea Region. Coalition forces led by the US Army are deployed to Takistan to quickly restore peace and prevent further civilian casualties.

92% positive of 16,204 reviewsPlaying now: 191$19.99

Left 4 Dead 2: Four Survivors, One Way Out

Fight through infected hordes with up to three friends in Left 4 Dead 2, or face another team in eight-player Versus.

97% positive of 824,083 reviewsPlaying now: 17,151$9.99

STAR WARS™ Battlefront II (Classic, 2005)

Join the rise of Darth Vader’s elite 501st Legion of Stormtroopers as you fight through an all new story-based saga where every action you take impacts the battlefront and, ultimately, the fate of the Star Wars galaxy.

94% positive of 46,468 reviewsPlaying now: 257$9.99

Quake

Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.

95% positive of 14,096 reviewsPlaying now: 169$9.99

Quake II

You are humanity’s last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.

95% positive of 8,582 reviewsPlaying now: 109$9.99

Garry's Mod Co-op: An Open-Ended Physics Sandbox

Garry's Mod has no built-in co-op campaign, but its online Sandbox gives you and your friends physics tools, props, and a huge community workshop to turn an empty map into your own project.

95% positive of 1,099,246 reviewsPlaying now: 20,770$9.99

Crea

Progress with every slain monster, learn over 80 skills through talents, craft hundreds of items, and explore vast procedurally-generated worlds in this ever-expanding sandbox RPG!

72% positive of 1,084 reviewsPlaying now: 0$14.99

The Anacrusis

Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!

67% positive of 618 reviewsPlaying now: 0$9.99

Black Ice

Hack greedy megacorps to help as many people as you can in a high-agility cyberpunk looter/shooter RPG. Explore neon cyberspace vistas and outmaneuver AIs to customize your hacker OS and weapon combos. Play solo or online co-op with up to 10 people!

94% positive of 516 reviewsPlaying now: 0$19.99