Online co-op 2D Platformer games

Every online co-op 2D Platformer game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 31–40 of 238 games matching 2D Platformer · updated 12 Oct 2026

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Released
Price
$ · Cheap
Players
👥 3–16 players
Reviews
100% of 11

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.

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Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
100% of 6

Tumly is a 2.5D physics survival game where you steer a tumbling ball across drifting, colliding platforms. Master momentum, unlock belt-ranked abilities, and survive nine biomes across four difficulty modes — solo or two-player, in co-op or duel. Don't fall. Keep tumbling.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Race against up to five frenemies as jetpack couriers trying to deliver contraband through a pulsing cyberpunk skyline. Master the questionably-engineered flight system, manage fuel & inventory, collect power-ups and EMP blast rivals into cop drones.

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$
Released
Price
$ · Cheap
Players
👥 2–4 players
Reviews
100% of 1

Dig deep with friends. Share one shaft, one wallet, one goal: go deeper. Mine ore, build your way down with ladders, platforms and elevators, and keep the lights burning. The dark is patient, the gas is not. Something hums at the bottom. Just one more layer…

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Released
Price
$ · Cheap
Players
👥 Not stated

Co-op top-down horde survival. Pick from 10 elemental heroes, stack game-breaking roguelite builds, and mow down endless swarms — solo or with friends online. Bosses, daily runs, endless mode. No pay-to-win.

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

A fast, juicy bullet-hell roguelike where you're lunch fighting back. Pick from 11 meatballs, blast through 10 levels of waves and 5 outrageous bosses, and build a god-tier meatball from 30 weapons & 55 items — without stacking so much you literally fall apart.

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$
Released
Price
$ · Cheap
Players
👥 2–10 players
Reviews
73% of 23

Knockout Battle is a chaotic multiplayer party game where you absolutely destroy your friends! Turn them into a thousand pieces and yeet them straight into space! Drink potions to get huge, fast like Flash, or strong like Hulk. Use guns, Thor’s hammer, or casually drop a NUKE!

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
100% of 5

Play Texas Hold’em and Short Deck with up to 8 players online. Create private rooms, invite Steam friends, or join by room code. Features include AI players, Infinite Squid, multiple All-in runouts, and real-time hand analysis. Virtual chips only, with no IAP or real-money gambling.

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$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
72% of 33

A survivors-like game with side-scrolling action combat. Slash, dodge, and mow down endless monsters in a gothic horror castle. Upgrade with every choice, snowball out of control, and survive until the very end.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players

Control Rocoumie, a tiny mischievous red fairy, and use the power of flowers to find your way home. A casual co-op action puzzle game for 1–4 players, with simple, easy controls. Find the key, reach the exit together, and enjoy it with family, friends, or players of any skill level.

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