16 Action · Difficult · Moddable games your group can play together online, including Barotrauma, DDNet, and Synth Riders.
All games: 16
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
Want to play the hardest cooperative 2D platformer ever? Want to finish no map ever? Want to be in pain for hours and cry, getting nothing in return? Come play DDNet with a large community of other sufferers!
Let the music move you as you catch notes, ride the rails, and dodge obstacles in a unique combination of freestyle dancing and fitness workout! Play on PC VR and Steam Frame.
Feel like the star of a martial arts film in Overgrowth, as you jump, kick, throw, and slash your way to victory. Free the rabbits from their evil overlords in the main story, then play through the prequel story, and finally, try out nine years of mods developed by the community, or create your own!
Plan a SWAT entry with one friend in Door Kickers’ two-player online co-op, then watch your routes meet real-time resistance.
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!
Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!
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.
Developed by id Software, and originally released in 1993 and 1994, the definitive, newly enhanced versions of DOOM + DOOM II are available as a combined product.
The greatest warriors of all time and space have been summoned to battle for the amusement of an ancient alien race. Wield a variety of guns and power-ups as you fight for glory against ruthless combatants in this fast-paced single-player and multiplayer FPS.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Descenders is extreme downhill freeriding for the modern era, with procedurally generated worlds, and where mistakes have real consequences. Will you lead your team to glory and become the next legendary Descender?
Chip destructible bosses apart pixel-by-pixel in this twin-stick bullet-hell shooter.
A rhythm game where you swipe between two lanes to the beat. Form your own flow and unleash your greatest swiping performance.
GARBANZO QUEST! The crazy bullet-heck platformer where your main weapon is your own spit! Bring a friend! Hand-crafted challenges, secrets, and branching paths galore!
EXIT 2 is a free multiplayer horror game in which a team of players must collect and deliver keys and then escape, while another player must stop them as a monster.