42 Action · Difficult · Puzzle games your group can play together online, including Fireboy & Watergirl 1: The Forest Temple, Biped 2, and UFO 50.
All games: 24
Help Fireboy and Watergirl explore the Forest Temple, the first game in the series. Play solo or team up with a friend locally or via Steam's Remote Play Together!
Biped 2 is a coop action adventure game with a strong focus on moment-to-moment collaboration alone or between 2 or 4 players.
UFO 50 is a collection of 50 single and multiplayer games that span a variety of genres, from platformers and shoot 'em ups to puzzle games, roguelites, and RPGs. Our goal is to combine a familiar 8-bit aesthetic with new ideas and modern game design.
The latest title in the "TGM" series, "TETRIS® THE GRAND MASTER 4 -ABSOLUTE EYE-" offers the ultimate Tetris game that no one has ever experienced before. Challenge yourself in new modes such as ASUKA and SHIRANUI.
PICO PARK is back with all new levels! Play with 2-8 players locally or online in this co-op action-puzzle game!
In a labyrinth surrounded by vicious monsters, Explorers must rely on their Lasso to survive! Capture and tame ANY monster to leap, glide, surf, tunnel and websling through a treacherous, patchwork maze. This roguelike/metroidvania seems cute, but it’s a deceptively difficult bullet-hell challenge!
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.
PICO PARK is a cooperative local/online multiplay action puzzle game for 2-8 players.
Delve with Shovel Knight into the depths of the Pocket Dungeon in an action-packed puzzle adventure mashup like none other!
A cosmic turbulence caused the 2D Platformer and the Top-Down Puzzler dimensions to merge! Switch between Toodee and Topdee and their unique perspectives to overcome hard-as-nails challenges, solve mind-melting puzzles and defeat huge bosses.
Japan’s beloved puzzle game series Puyo Puyo and the world-renowned Tetris® game franchise have teamed up again to deliver even more Puyo-popping and Tetrimino-clearing fun in Puyo Puyo Tetris 2.
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!
Biped is a coop action adventure game with a strong focus on moment-to-moment collaboration between 2 players.
I Wanna Be The Creator是一款可以自制关卡的IWBTG同人游戏，在里面你可以体验到各种千奇百怪的关卡，同样也可以创作出属于你自己的关卡。
The beloved roll-em-up game returns with fully updated graphics, completely recreated cutscenes and in full HD!
Help Fireboy and Watergirl explore the 7 Elemental temples!
Two puzzle game juggernauts collide as global phenomenon Tetris® and SEGA’s famous Puyo Puyo™ combine in a super mash-up of ferocious competition, adorable looks, and addictive puzzle fun!
From the creators of Rogue Legacy comes a "true-cooperative" action RPG. FULL METAL FURIES puts an emphasis on team play with a unique combat system where everyone is important. Play on the couch, alone or with friends, or make it an online party for up to four players!
Play as an exiled 'wum' looking for a new home in this bizarre but charming world, filled with strange creatures, puzzles, monsters and political chaos.
With BADLAND: Game of the Year Edition, experience the multi-award-winning action adventure like never before - redesigned for Steam.
Plan a SWAT entry with one friend in Door Kickers’ two-player online co-op, then watch your routes meet real-time resistance.
Solve two-player platform puzzles across a world where gravity pulls in both directions, online or on one shared screen.
Octodad: Dadliest Catch is a game about destruction, deception, and fatherhood. The player controls Octodad, a dapper octopus masquerading as a human, as he goes about his life. Octodad's existence is a constant struggle, as he must master mundane tasks with his unwieldy boneless tentacles while simultaneously keeping his cephalopodan...
Shoot! Dodge! and... Get Hit!? "Ikaruga" is a vertical shoot 'em up that features an unique polarity-switching gameplay. Switch the ship's polarity and "get hit and absorb" enemy bullets! Achieve High Score with the chain bonus!