Co-op & Multiplayer Games

You climb the mountain, but you keep the moments. A 1–4 player co-op climbing adventure.

Further and deeper together. Even mining rock is all about the crew.

Chaotically busy, yet weirdly addictive with friends.

Squad-based action co-op featuring distinct loadout synergies and mission-based combat built for 1–2 hour squad sessions.

Wingspan is a relaxing, award-winning strategy card game about birds for 1 to 5 players. Each bird you play extends a chain of powerful combinations in one of your three habitats. Your goal is to discover and attract the best birds to your network of wildlife preserves.

Barony is the premier first-person roguelike with cooperative play! Adventure alone, or gather a party with iconic and unusual RPG classes to face off against the brutal dungeons. Test your resourcefulness, wits, and friendships, on your quest to lift the evil lich's curse!

Pilgor's baaack! Gather your herd and venture forth into Goat Simulator 3; an all-new (at least on Steam), totally realistic, sandbox farmyard experience. Invite up to three friends in local or online co-op, create carnage as a team, or compete in mini-games and then not be friends anymore.

Three Heroes make their way through dangers untold in a fairytale world of great castles and strange machinery, featuring physics-based puzzles, beautiful sights and online and local co-op.

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!

The best-selling Trine series returns to the magic of 2.5D! Join three iconic heroes as they set off on a quest through fantastical fairytale landscapes to save the world from the Nightmare Prince's shadows.

Ember Knights is an action rogue-lite for 1-4 players where you play as legendary knights, the last spark of hope against the mad sorcerer Praxis and his hordes of unwavering fiends. Wield weapons & skills, build synergies with game-changing relics and free the universe of Praxis’ corruption.

The world’s most irreverent co-op action adventure returns! In the next chapter of Magicka, players ascend from the ruins of Aldrheim to experience a Midgård almost wiped free of Wizards after the Wizard Wars, with the few that do remain having either gone mad or extremely hostile toward all others

Hypercharge is a first and third-person shooter action figure game you've always dreamed of! Grab your friends, complete objectives, defend the Hypercore against waves of weaponized toys, and defeat Major Evil together in the story campaign!

A lightning-fast 1–3 player co-op roguelite from the creators of Dead Cells. DASH, DIVE and DESTROY across a shattered world. Build wild loadouts, unleash devastating Alterattacks, and become the last stand against the Vortex.

SOS OPS! is more than a game. Your task is to save the city. You will find yourself in the epicenter of madness, where co-op missions with friends will raise the adrenaline to the limit!

Heroes of Hammerwatch is a rogue-lite action-adventure. Explore and battle your way through procedurally generated levels on your own or with up to 3 friends.

Survivors-like with ONLINE CO-OP for 1-4 players. Team up with your wizard friends to slay hordes of dark creatures. Complete team-based objectives, unlock new upgrades and create overpowered spell synergies. Friend nor foe is safe in this friendly fire bullet hell!

Roboquest is a fast FPS Roguelite in a scorched futureworld. You're a rebooted Guardian, ready to kick some metal ass! Fight with your buddy or by yourself and annihilate hordes of deadly bots in ever-changing environments.

Stand and fight for humanity. This arcade shooter takes place in the year 2022, as the Earth Defense Force fends off an all-out attack by unknown life forms. Become an EDF soldier, battle against endless hordes of immense enemies, and restore peace to the earth.

Wrangle the hands and arms of a 1970s space cosmonaut and push, pull and twist your way through an increasingly precarious range of physically simulated stellar scenarios, where without gravity, nothing is still, nothing is secure, and nothing is simple.

Slice, burn, toss, zap, grind and gib massive hordes of repugnant orcs in this long-awaited successor to the award-winning Orcs Must Die! series.

You’re out of jail, but the debt isn’t gone. Sneak, steal, and break into houses solo or in 4-player co-op. Use lockpicks, sleeping gas, and brute force to complete jobs, outsmart security, and make enough money before time runs out. Will you pay back what you owe, or lose everything?

Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

Serious Sam II is a shot of adrenaline to the hearts of first-person shooter fans across the world. This is serious!

Shotgun Farmers is the multplayer shooter where missed shots grow guns. Fire your bullets into the ground to plant your ammo. The longer a gun plant grows the more ammo you will get!

SYNTHETIK is an unforgiving tactical shooter rogue-lite where freedom and experimentation is key. Fight in a world overrun by the Machine Legion and their Gods. Experience the next level in gun-play and dive into unparalleled build options and Android upgrades. Can you defeat the Heart of Armageddon?

It takes two to save the world in this cooperative spy adventure. Pair up with a friend as Agent or Hacker—with only your voices to connect you—and work together to bring a hi-tech global menace to its knees. Now with a FREE CONTENT UPDATE!

Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!

Serious Sam Fusion is a central hub for several existing Serious Sam games developed by Croteam. Cool new features, engine upgrades, patches and updates will be released to existing owners for FREE!

Caveblazers is a challenging and brutal roguelike platformer. Journey into a mysterious cave, fighting orcs and goblins with an abundance of weapons and magical items! Make friends along the way, then watch in despair as they are crushed in to a bloody pulp under a troll's fist.

Serious Sam is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Year 2001!

20XX is a roguelike action platformer that you can play with a friend. Jump and shoot your way through ever-changing levels, collect awesome new powers, and battle mighty bosses in the name of saving the human race maybe!

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!

Fight fires for fun and profit in this unpredictable and frantic multiplayer game. Team up with friends, take on daily challenges and climb to the top of the corporate firefighting ladder. More than one way to become a hero!

The truly ultimate "WARRIORS OROCHI 3" is now available on Steam! With all the content of "WARRIORS OROCHI 3", new characters and episodes that deepen the story, new modes, and DLC that has been released for other platforms, enjoy the world of Orochi to your heart's content!

The Absolute Evil and its trusted *cough* servant, the Dark Elf Thalya, return in Dungeons 4 after the events of its fabulous predecessor to bring about their triumph over the forces of good once more.