
Operation: Tango - Friend Pass
Download the Friend Pass and play for free with a friend who owns the full Operation: Tango game. It takes two to save the world, but it only takes one to pay for it.
From can't-miss crowd pleasers (940) to underrated indie hidden gems (517), all in one place.
Can't spot a co-op or party game yet? Searching also pulls matching titles live from Steam.

Download the Friend Pass and play for free with a friend who owns the full Operation: Tango game. It takes two to save the world, but it only takes one to pay for it.

Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!

Lead a medieval restaurant with a team of rats like you! Cook the food, throw it at the guests, wipe the drinks under the skeletons! Become a legendary rat chef, proving to orcs and vampires that the most delicious bloody meat is served in your restaurant!

8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.

The original cooking horror returns in an unhinged co-op experience for 1-4 players. Grill burgers, serve customers, and hit your quota before the kitchen turns into a nightmare. When Asset Joy begins her hunt, try to escape alive and extract your hard-earned cash to survive another shift.

Feed the Cups is a Roguelite multiplayer online cooperative game. Run a Drink Shop, stocking up, preparing ingredients, taking orders, crafting drinks, cleaning up, and checking equipment. Join your friends together!

Help Fireboy and Watergirl explore the 7 Elemental temples!

Ghost Exile - is a cooperative horror from 1 to 4 players: when hunting for ghosts, you need to determine the type of ghost, carry out a ritual of exorcism and then the ghost can no longer harm anyone. Be careful! Hasty conclusions can lead you to a sad outcome.

KLETKA is a co-op (up to 6 players) horror game about going down in an elevator that is trying to eat you. Feed the elevator, explore deadly floors and descend deeper.

Jump Space (formerly Jump Ship) is a mission based co-op PvE for 1-4 players, where you are the crew of a spaceship. Transition seamlessly from crewing the ship to on-foot exploration and space walks. Explore, upgrade, and survive intense encounters in deep space together.

Apocalypse Party is a 3D top-down action Roguelike game. In this game, you will embark on a new mission to traverse through the Middle Ages and gradually master abilities, and arm yourself to become the strongest survivor through numerous choices.

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

Saddle up for a bike-riding, frisbee-throwing, goose-petting, friendship-building, treasure-hunting, story-driven adventure for 1 or 2 players!

Team up with your raccoon squad in this physics-based co-op adventure for up to 6 players. Scavenge trash, fill your stolen wagon, and haul it to Raccoon Paradise. Live your best raccoon life.

Serious Sam: Siberian Mayhem is a new stand-alone expansion to the world of the classic FPS series. Join the fight against Notorious Mental on a journey through the wild lands of Russia, and find your way through this lost chapter of Sam Stone's adventures.

Inspired by the 1983 cult classic film, Wargames, DEFCON superbly evokes the tension, paranoia and suspicion of the Cold War era, playing on the fascinating aspects of psychological gameplay that occur during strategic nuclear warfare.

Face unpredictable dangers, fight perilous fires with your crew, and save lives in Firefighting Simulator: Ignite. Step into the boots of a U.S. firefighter and play with up to 3 friends or with the help of your NPC controlled crew members.

This is an asymmetrical game of hide and seek. In true form to IllFonic’s past titles, this title is a 4v1 setup where players will either play as part of a team of new Ghostbusters or a singular Ghost.

Koji Igarashi and Inti Creates are back with more retro sword-and-whip action! Curse of the Moon 2 brings classic 2D action and a dark, 8-bit aesthetic together with modern playability.

The two adventurers Handy and Dandy have caused a dimensional tear which is now separating them and the entire cave where they have to solve platforming puzzles to reunite again in this 2D co-op game.

Partner up with your friend online and set sail for an unforgettable puzzle adventure in this bite-sized standalone We Were Here experience. Work together to overcome brain-teasing challenges and make fun memories, using your best communication, teamwork and trust skills.

In this Insanely Twisted, 2-D action-adventure game, explore unique environments and battle bizarre creatures.

A handcrafted two player adventure set in low gravity. Solve intricate asymmetric puzzles and escape Moontella’s extremely profitable slime empire through chaos, laughter, and unforgettable true co-op moments with your partner.

With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.

Cozy first person co-op organizing and cleaning simulator! Sort wands, tarot decks and potions. Tidy up the shop to earn points and unlock powerful spells that help you restore order before the Alchemist returns!

An online 2-8 player co-op horror experience where you and your friends are trapped in an abandoned toy factory. A mysterious voice commands you for an unknown purpose as you explore shifting halls, scavenge for tools, and fight for survival against creatures that lurk in the dark.

Dark Hours: Prologue is a free co-op survival horror game for 1-4 players. Your heist has been disrupted by a supernatural event, and your team of robbers is now trapped with a monster. Forget your plan, your mission: survive! Explore and cooperate to find a way out or hide and wish for daylight.

A new lead turns up old doubts about an 'Unsolved Case'. A trap, or a copycat killer? In this co-op puzzle game prequel to the award-winning Cryptic Killer series, put on your detective badges as you collaborate and communicate to crack the codes, solve the riddles, and catch the Cryptic Killer.

A co-op climbing game about two stuck-together toys on an escape mission from their evil owner.

DIVE. DISCOVER. DIE. Crew a submarine with friends in We Need To Go Deeper - a 2-4-player cooperative submarine roguelike set in a Verne-inspired undersea universe.

Play in VR or with traditional FPS controls as you breach and clear your way through 23 handcrafted levels. Fast and Low is the only tactical shooter where a VR player and a keyboard player can team up side-by-side, locally or online, in intense co-op missions.

Choose one of four heroes and explore the Garden, an astral prison guarded by 12 powerful mystical bosses: the Zodiacs. Challenge them with dozens of unique spells and faithful friends by your side to unfold the story of this platform roguelite with lightning fast combat.

This is an online Minesweeper game that allows worldwide players to play simultaneously! Across 48 million tiles, each game has over 10 million mines. Dive into a minefield, claim your territory, clear the mines and have fun!

Transform a chaotic area into a satisfying work of art. Follow the paver layout plan and place 4,064 pavers in their correct locations. Work alone or together with friends, develop useful skills, and restore the plaza piece by piece.

Battlefleet Gothic: Armada 2 is the new real-time strategy game adapted from Games Workshop’s famous tabletop game that portrays the epic space battles of the Warhammer 40,000 universe.

This is a hot barrage shooting game. Destroy enemy planes with powerful firepower, shuttle and evade in the barrage. Various scenes with rich colors Planets, Fire Stars, Jupiter Stars, Water Stars, and huge battleships. It's time to drive a space fighter and show your strength! !