Online co-op Side Scroller games

Every online co-op Side Scroller game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 51–60 of 101 games matching Side Scroller · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
75% of 16

Asteroid Forward is a spin-off video game from the Asteroid series for PC and mobile devices. Battle your way through space in this vertical side-scrolling action arcade game!

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Free
Released
Price
Free
Players
👥 Up to 7 players
Reviews
62% of 8

You've got a Tindermatch! Sadly she lives very far away so you decide to fly to her and take your friends with you! Plays like Super Mario, but you only have a limited amount of restarts. Play with up to 7 people. Reach the End to win the game

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
100% of 1

Hitler won the war by splicing animal DNA with humans: The Binary Super Soldier. You are the very first Binary Elite, designed to usher his reign to the end of time. But will you? HELL no. Camp Z is an alternate history 2D side-scrolling run-and-gun shooter with online co-op.

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$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
100% of 34

Xion Leak is a fast-paced, two-player, cooperative platformer. Get in sync and set the fastest times to win trophies! Run fast, work together, and avoid the countless dangers that the mysterious Foreman has placed in your path.

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
84% of 262

Fight with your whole body. If you lose an arm, it's just a scratch. If you lose the other, it's a flesh wound. If you lose your legs, headbutt them. LET'S FIGHT, FIGHT, FIGHT!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
84% of 207

"Phantom Breaker: Battle Grounds Ultimate" is a side-scrolling beat-'em-up with the heart of a fighting game, showcasing nostalgic pixel art and the latest cross-platform online multiplayer. Experience the biggest and most expansive entry in the "Phantom Breaker: Battle Grounds" series to date!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
100% of 13

You are a genetically enhanced super soldier tasked with defending Earth from an onslaught of alien foes. Blast your way through endless hordes in a conspiracy riddled side scrolling bullet hell adventure and become more dangerous than the truth. Become the Chimera!

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