Online co-op Indie games

Every online co-op Indie game on Steam we know of. Add tags, a price band or a review floor to narrow it down.

Showing 2681–2690 of 3,535 games matching Indie, newest first · updated 14 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
62% of 8

Red Mercenary is a rogue-lite action-platformer that features permanent death and procedurally generated levels. Explore and fight your way alone or with friends, up to 4 players online.

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The Mutational

Deck Playable
Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
75% of 32

Fight your way through the endless amount of enemies. Build all kinds of turrets, drones, traps and barricades to survive as long as possible. Unlock new perks and take that top position on the world leaderboard.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
83% of 935

Valgrave is a free-to-play combo focused Battle Royale game. Every game you'll decide if are a spell-slinging sorcerer or prefer to let your fists do the talking. Grab a combo and level up to show up your opponents. There are over 100,000 combinations.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
46% of 195

A dark horror MMO inspired by the writings of H. P. Lovecraft. Infinite dungeon exploration, boss raids, guilds, PvP, leaderboards, and the destruction of your soul by an uncaring immortal e̵̺̙̺̥̅͆̾̽̈̇̇̂̑̊͊̽̕͜͝lde̸̮͔̞̮͖͖̙̍̒̽̓r̶̨̹̠̪̫͓̻͍̥͇̄͌͂̋̊̚ g̶̩̮̙̾̎̌̋̎͌͘͠oḓ̸̛̮̦̮͎͖̖͖͕͊͋̉̂́͛ slowly devouring the universe.

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The Watchers

Deck PlayableCrossplay
$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
74% of 443

The Watchers is a haunting co-op stealth game in which 2 players take control of a brother and sister trying to uncover the truth behind their mother’s disappearance. Explore the sinister compound of a local cult and work together to evade brutal enemies. But be careful. You’re being watched.

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$
Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
90% of 31

Online Co-Operative Tower Defense with endless build options and a heavy focus on rewarding creative strategies. With so many Levels, Towers, Abilities, Items, & Builder Specialties every match can be a different experience!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

Leap of Champions is a 3D Competitive and Cooperative First Person Shooter with awesome graphic, and a skill based gameplay. His strongpoints are a fluid gameplay with a solid graphic able to work well on outdated machines as well as on the most powerful ones.

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$
Released
Price
$ · Cheap
Players
👥 Not stated

Help Mybot find his home through a 3d maze of traps. Beware of shuttering glass, sliding ice, blocking walls and reset traps. Challenge yourself or your friend in multi-player. Have hours of fun and never run out of game-play as you create your own levels. Make your game the cool place to go.

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