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 81–90 of 101 games matching Side Scroller · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
66% of 3

Explore a new world, traverse randomly generated seamlessly wrapping landscapes, fight or trap monsters, dig for materials, craft equipment, find treasure and trinkets to increase your strength, build a house to protect yourself at night, dig deep to find greater challenges, unique weapons and more!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
55% of 18

A physics-based platformer. 40 levels to pass. 12 fight arenas. Play with friends by local multiplayer or online multiplayer for up to 4 players

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
90% of 833

Experience an innovative co-op adventure where two players have to work together. Engage in collaborative puzzle solving and dynamic combat with each player having unique abilities. Delve into a psychological narrative that explores the essence of humanity.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
100% of 1

Quickly call your friend to play Happy Bird Day. Complete together levels full of surprises and fun physics. Play as pigeons or sparrows, or whatever those birds are ¯_(ツ)_/¯. Overcome space and time, have fun and enjoy. P.S. Don't forget to find the seeds and carry them all the way to the end.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 1–5 players
Reviews
85% of 48

Crossing Frontier is a side-scroll action game with brawling elements, , featuring multiplayer PVP content and the thrilling combat! Bring your A-Game and join the fight!

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
62% of 1,754

Join your fellow Marked Inquisitors in this online coop successor to award-winning 2016 Soulslike Salt and Sanctuary.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
88% of 1,568

Old friends and bitter enemies await as you invade Earth alongside a Mothership full of alien friends! Blast, beam, and bite your way through an endless swarm of enemies as you and up to three of your fellow hominids cause mayhem with a huge arsenal of weapons, mutations, and acrobatic maneuvers.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
89% of 2,591

Unleash your inner miner as you commandeer a high-tech Mining Mech! Mine for valuable resources and upgrade your mech for even bigger hauls as you explore the underground. Fun to play alone or with up to 7 friends in online co-op multiplayer!

If you loved these, you'll love this