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.

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?

A fast 2.5D multiplayer tag game where up to eight blobs grapple, wall-jump, dodge, and shove through 40 wild arenas, passing an explosive glow before time runs out.

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.

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.

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!

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.

MATO-STICK is a physics-based arena brawler for up to four players. Grapple, wall-jump and fight with unusual weapons across moving platforms and destructible cover. Play locally with friends or bots, then choose your own arenas and rules.

Chaotic 2v2 action where all 4 players clash at the exact same time! Master the frame-perfect parry mechanic and equip one of 6 powerful Gems to alter your team's playstyle. Play with 3 friends in smooth online matches powered by GGPO rollback netcode.

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

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

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

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?

Boost, dodge, and rocket to victory in this fast-paced, arcade-arena style battle game. Smash and destroy up to three friends locally or online with just two buttons. Maneuver your ship, manage your fuel, and knock enemies off the platform in Smash Rockets.

Fight for survival in a fast-paced online party platformer for 3–16 players. Outlast your rivals to become the MapGod, reshape the next arena and unleash godlike powers on everyone else.

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.

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

A mage platform battler for up to 8 players (Local multiplayer or Online). Earn spell cards and build between rounds until the winner is crowned at the match standings.

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.

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.

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!

Bangers & Mash is a chaotic free-for-all platform fighter featuring a lively cast of potato-based characters brawling their way across Murphee Island. Each potato features a unique and engaging skillset for veterans and new players alike.

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!

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.

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

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.

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).

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

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!!!

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!