Games like Portal 2

Escape the Backrooms is a 1-4 player co-op horror exploration game. Traverse 30+ eerie backrooms levels while avoiding entities and other dangers. Try to escape but be warned: survival isn't guaranteed.

I made a game about my dog.

A co-op puzzle heist for two. One of you breaks into a secret bunker. The other sits in the observation office, watching the bunker. A walkie-talkie is your only link. Talk to each other and find out how good your teamwork really is.

Become a crew member of an Interdimensional Express Train! Discover a new world full of mysterious creatures, enemies and places. Upgrade and customize your train, gather new materials and build better weapons. Play solo or online сo-op with up to 4 people.

Celebrate 30 years of Rayman with the definitive edition of the platforming classic, featuring 5 versions, 120+ extra levels, and an exclusive documentary on the creation of the limbless hero.

Orb of Creation is a non-idle incremental-puzzle game in which you recreate the world with nothing but magic and ingenuity. Conjure resources, buy upgrades, and become an all-powerful wizard!

Bye Sweet Carole is a narrative-horror adventure game completely hand-drawn in the style of classic animated films. Follow the trail of missing Carole Simmons and uncover the dark secrets hidden behind her disappearance from Bunny Hall orphanage.

Run, jump, throw your friends, and escape the Pursuer! Work together, dodge traps, and survive the chaos to escape Hell in Souls Runner.

Run, jump, climb, glide, fly - or just fall in a way that somehow works. Doesn't matter how, just keep moving through this maze. How high do you have to climb to get out?

A 4-player online co-op survival horror game. Avoid the contaminated rain, gather scrap and get back to the tram. Monsters that copy your friends' voices and behavior, and many other threats, stand in your way. Gear up and stick together to survive.

Escape the sinking Aztec temple in this cartoonish rogue-like arcade platformer. Dig your own path up, jump and climb in blazing speed, hoard loot, trade lives for god-like powers, beat bosses, master 1000 handmade levels and humble other players in daily leaderboards.

Backrooms Media is a 1-4 player co-op horror that plunges you into unsettling, hyper-realistic liminal spaces. Navigate eerie environments filled with lurking horrors. Group up with your friends to face the terror of the endless backrooms together and... try to escape.

Battle beyond the Underworld using dark sorcery to take on the Titan of Time in this bewitching sequel to the award-winning rogue-like dungeon crawler.

An observation-based 3D thriller game where you must safely escape a dark cave to save a companion trapped under a boulder. Carefully explore the cave: if you spot an anomaly, turn back immediately; if there are no anomalies, keep moving forward to find your way out.

Cubed is both a puzzle and an arcade game for VR and non-VR.  Relax and get your mind off everyday life in puzzle mode.  Challenge yourself in arcade mode.  Or grab a friend and play arcade mode either as a team or as bitter rivals, stealing and sabotaging your way to victory!

Kairos: In Step with Time is an experimental interactive experience about time, cosmic order, and human response. Align the time ring, answer six moments of change, and let your final hexagram emerge from the rhythm of the universe.

An online 1-6 player co-op "casino crawler" where you and your friends share one bank account and one massive debt. Gamble, buy sketchy items, make terrible decisions, and climb an ominous casino tower to hit your loan shark’s daily quota in 5 minutes - or face the consequences.

Play as a grieving mother whose child went missing in a playland one year ago. Use your trusty flashlight to navigate through the dark, solve replayable puzzles to progress forward, and hide from the unstable killer mascots! Investigate the mysteries and find out the truth...

A brutal precision platformer where the level itself is lying to you. Run, jump and die through 200 handcrafted rooms of vanishing floors, fleeing doors and gravity that flips mid-jump. Then build your own lies in the editor and share them as codes.

Chaotic bomb disposal fun with friends & monkeys! Work together as a 3-player co-op team of blind, deaf, and mute monkeys. Each player has only part of the needed information. Communicate, solve puzzles, and race against the clock. Can you defuse the bombs before they explode?

Continue the adventures of Beatrix LeBeau as she journeys across the Slime Sea to Rainbow Island, a land brimming with ancient mysteries, and bursting with wiggly, new slimes to wrangle in this sequel to the smash-hit, Slime Rancher.

a game about accessibility settings that's just a *bit* too hard for you to play effectively. 10-15 minutes in length with 30+ minutes of developer commentary!

Save Bunnyville from a doomed fate: a top-down action/RPG roguelite from the makers of Dungreed. Explore the depths of the tower, collect and upgrade artifacts, and defeat hordes of demons to keep your village safe.

Shelve the products, unlock new skills, and use your unique methods to tidy up the mall. Enjoy the online co-op and online PvP with your friends, or go solo! Fill up the shelves and experience a sense of relief and satisfaction.

A 2D metroidvania where every defeated Archon becomes a summonable power. Claim six ancient beings, use their abilities to fight, move, and unlock hidden paths, and uncover a sinister plot threatening the world.

Archdemon Balor has opened the Gate of Hell into the human realm and hordes of demons and monsters have flooded into your world destroying everything in their path. You must protect those who are still alive and ultimately destroy Balor to close the Gate.

Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.

No More Room in Hell 2 is an intense 8 player zombie shooter. Overcome the endless undead. Avoid infection. Survive hell together.

After a tragic crash, dash across an unknown planet using your crew's wacky UFO abilities to find a way home.

Adoros is dying. A catastrophic Void Anomaly has torn open the planet’s surface, warping reality and unleashing forces no one fully understands. You are a Cube Crusader sent to crush the Anomaly, at any cost.

KILL IT WITH FIRE! 2 is the ultimate co-op spider-hunting experience! Either solo or as a team of Exterminators, unleash an arsenal of crazy weapons, wreak havoc, and complete dozens of challenges across seven dimensions under spider siege.

We Are Sisters is a psychological horror experience that takes you deep beneath the forests of Eastbane. Solve puzzles and uncover dark secrets as you venture further underground, drawing ever closer to discovering what happened to your childhood friend, Aleks

A minimalist puzzle game. You only see the outer edges of the puzzle pieces in a voxel object. Put the puzzle pieces into place to reveal the hidden voxel object and watch it come to life.

Sol Cesto is a tactical and frantic roguelite where mastering your luck is key. Choose a hero, upgrade them using cursed teeth and magical items, and descend to the bottom of an ever-changing dungeon. In this dark world, every action has consequences…

"Lost Castle 2" is a 2D Beat'em up Rogue-Lite game. Explore abundant treasures and items to enhance yourself, master various weapons to showcase your skills, and challenge powerful monsters to demonstrate your strength. A new adventure is calling for treasure hunters!

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.

『UNBOUND PROVIDENCE』はレトロな3Dダンジョン探索アクションRPG。鉱山から繋がった未知の迷宮を探索しよう！

Wage a global war of resistance against an alien invasion. Command turn-based tactical battles, build a network of covert bases, directly control your fighter wings, and achieve strategic victory in a simulation of asymmetric warfare against a technologically superior foe.

MycoRelic is a cooperative third person action-RPG set on islands inhabited by tribal mushroom robots. Loot derelict foundries to upgrade your robotic body. Explore ancient temples to infuse your fungus with forgotten elemental powers.

Play a local Quiz game with your friends and family. Create your own Quiz using the Party Quiz Constructor or use the Steam Workshop to download one of the Quizzes made by the community. Test your knowledge!

Create your own adventure and share it with the world! Everyone's favorite radish dad is back, but this time the story is up to you! in DIY Dadish gives players the ability to design any Dadish level they can imagine.

Dive into Fatal Claw, a Metroidvania game in vibrant 2D artwork. Explore the arcane underworld your way with Kisha. Your ultimate goal is to find the key to the surface world alongside other survivors, while vanquishing infected enemies and absorbing their power. Start your clawsome adventure now!

Run to the rhythm of your own music library! Melody is back, with vastly improved audio analysis algorithms. Each MP3 creates a unique obstacle course synchronized to the beat and the intensity of your music.

A fast paced silly cutegore FPS! Earth has been taken over by demons. A catgirl codenamed MeowMeow fights back! MEOW, GUN, CLAW and BLOW UP hordes of evil demons, zombies, and other monsters in colorful environments with tons of weapons! The game runs on the FTEQW engine.

A psychedelic trip to an abandoned island paradise, where nothing is quite what it seems. Explore forgotten villas, sentient art pieces and sunken opera houses. And find your way back home before the archipelago swallows you whole.

A puzzle game with twenty small mazes.

Cage & Seek is a multiplayer hide-and-seek game where one player becomes the Seeker while the others hide, rescue captured teammates, and use special items to escape. Explore unique maps, outsmart the Seeker, earn points, and play with friends or bots.

A fully text-based single-player RPG inspired by classic MUDs. Step through portals into hand-authored and generated realms that scale to your character. Hunt loot, craft and enhance equipment, level multiple classes, and create your own adventures in the Portal Workshop.

A story-driven Metroidvania where the allies you choose to bond with change how you fight and explore. Journey through the high-fantasy world of Raoah, uncover lost civilizations, and forge bonds that shape your path through a land on the brink of collapse.

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!

Pardon My French Toast is a 3D platformer starring a slice of toast who covers himself in sweet spreads to get fun abilities.

A highly realistic VR survival roguelike adventure set on a ruthless 17th-century tropical island. Shipwrecked and alone, you must survive without guidance as you face wild beasts, nature’s fury, and a mysterious local tribe. Every decision is yours. Your survival is in your own hands!

A HARDCORE physics-based 1-4 player co-op RAGE GAME about getting home after a wild night out. It was a fun night! Now grab your buddies and walk home. IF YOU REMEMBER HOW.

Fight hordes and defend your Stronghold in a bullet heaven survivor-like with co-op and tower defense. Gain power-ups every level, collect random artifacts from chests and grow stronger to survive, defeat the boss and claim a top spot on the Sineus Arena leaderboards!