Top similar games like OSO:

Clodhoppers is an online and local single/multiplayer brawler designed around quick games and big laughs. All the artwork is created using clay models and stop motion animation to give a unique aesthetic.

Stickplosion is a fast, chaotic 2D pixel-art brawler where the arena fights back. Blast, build, and bury rivals in fully destructible terrain across free-for-all and team battles. Draft a new ability every round, invite friends through Steam, and craft your own maps.

The arena evolves. Your power scales. Only the final round settles the score. VYDER is a 2-4 player platform fighter where you build up your Vanguard across shifting stages. Adapt, power up, and outlast your friends for ultimate bragging rights.

Charge Champs is a 2D platform fighter with a unique combat system where players charge their character to temporarily unlock abilities and gain an advantage over their opponents.

Become the ultimate online smasher & brawl it out with friends online

Meet Me in the Well is a frantic arena shooter for up to 4 players. Play locally or online with Steam Remote Play Together. Drop in with a revolver loaded with 6 bullets from a huge arsenal of effects, spin the chamber, and fire. Every shot pulls a random round so be ready for chaos.

Bunraku is a fast-paced multiplayer brawler where you clash with friends in frantic ninja fights. Up to 8 players can join the Bunraku Theater arenas, online (P2P) or local, mastering ninja dashing skills to become the ultimate battle puppeteer!

A free arcade challenge runner where every clear becomes a shareable boss route. Draft wild rule cards, dodge the Forge Core, climb the boards, and challenge friends to beat your exact machine.

PUTERSHOOTER is a game where weaponized computers fight through chaotic round-based PvP. Corrupt opponents with viruses, upgrade yourself with floppy disks, and build increasingly ridiculous combinations in fast-paced physics combat!

Challenge yourself and other players in a daily gauntlet! Put your platforming skills to the test and come out on top against in this addictive daily platforming challenge!

A challenging single-screen platformer inspired by 80s arcade classics. Help Little Boo rescue his lost friends across 40 deadly levels. Dodge traps, outrun enemies, and race against time. Easy to learn. Brutal to master.

A 2D side-scrolling rock-paper-scissors fighting game

Welcome to the BOUNCE! Grab your controller, buckle up, and prepare for a face-off like no other in Nice to Yeet You!

In this chaotic party platformer, you must hold onto the sacred Lunara Mask as long as you can, while your rivals try to beat it out of your hands. Move with agility to chase down or escape from your opponents, and sabotage their attacks with precise parries. Who can complete this hilarious ritual?

A 2D, platforming game with a telescoping robot and short, intense caves to explore.

A precision puzzle-platformer where every move you make becomes permanent ink — solid walls your future self must route around. Plan each level like a single continuous pen stroke, dodge the Red Pen's corrections, and escape the page before you wall yourself in.

3-16 player online multiplayer chaotic platformer. The winner becomes the MapGod, turning the map against everyone else.

A fast-paced 1v1 game of tag and chase. Run, dodge, and tag your opponent before the timer runs out!

A unique, fast-paced platformer where only you can save the world from total destruction.

Retro-inspired multiplayer platformer for up to 4 players. Battle friends or AI in chaotic arena fights using attacks, powers, and clever tactics. Win by collecting 5 coins or being the last one standing. Skill, timing, and strategy decide the champion.

Prepare to be one of the dudes! Challenge yourself in one of the best, precise yet silly, skill-based platformers. Built for co-op fun, mastery solo... or absolute chaos in party mode! Take a trip back to the age of classic platforming, with awesome secrets, arcade energy, and satisfying challenges.

Let's Have Fun in a HARDCORE Party Game! Be the last one standing on platforms. Build the stage with friends. (And block them!) There are more rules waiting for you to discover!

Starkheim Tournament is a 2D fighting game set in a fantasy universe with a pixel-art style. Featuring simplified, easy-to-learn controls, it’s designed to be instantly accessible and quick to master.

Hammer Dudes is a casual 2D platform fighter. Dodge, throw and strike with your hammer to defeat your opponent and reach their final scene! Play on the couch with a buddy or even online in this competitve and crazy 1v1 game.

PLUNKO: Champion of the Roundlands is a hand crafted action platformer with an energetic twist! PLUNKO loves energy drinks, give them one and prepare to bounce off the walls! So, aid PLUNKO on his quest, and stop King Trungle from destroying the Roundlands!

Throw down against friends and foe in this PRE-HYSTERIC fight for VICTORY! Dinosaurs may be extinct, but your dino’s fashion doesn’t have to be! Dress up your dino to display your terrifyingly cute awesomeness while you hammer your haters! Do you have what it takes to be the last dino standing?

Fight with your friends in this fast-paced brawler mixed with a platform game, where lovely 2D pixel art meets stunning visual effects. Choose a character and use its super-powers to defeat your opponents (up to 4 players).

QLewds is an upcoming Free-to-Play 3 vs 3 online multiplayer clash in a large 2D arena. The game aims to bridge aspects of MOBAs, Metroidvanias, 2D Platformers, and Brawlers into a novel gaming experience.

YSNP! is a local couch multiplayer 2D shooter. You and a friend try to win a tug-of-war across multiple screens in a 1 vs. 1 battle. Eliminate your opponent with your weapon and interactive level objects, gain your turn, and try to get past him to the other side of the screen.

Scream to survive! In this chaotic voice-controlled brawler, yell instructions to move your dumb animal warrior. Battle friends or bots in explosive arenas where silence means death, and luck means victory!

Trade your lives for POWER. Fight with endless character customization possibilities and rollback netcode.

Face your friends up to 4 players ! Forget the static board game for a dynamic and exciting gameplay ! Grow as many turnips as you can and prevent your friends from doing so by any means ( yes, this includes exploding them)

Knuckle Creek is a slapstick comedy brawler designed for friends, fun and light-hearted play sessions.

The best f2p play there is! Play against a friend or in a public match in fast paced 1v1 battles. Win matches to get resorces for progresion and unlock as many clishers as you can so you can promote as many of them for great rewards. The more support this product gets the more updates it will get!!!

Playomoji is a chaotic party platformer where up to 16 friends battle it out. Shove your buddies into traps, ruin their runs, and laugh as everyone goes mad trying to reach the finish.

Holy Stick! is a party game, and action shooter for up to 8 players where you use powerful weapons to shred the limbs of your enemies! There are different weapons, maps, customisation options and a Craziness System. On top of that - no health bars! Brace yourself, limbs will fly!