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 3461–3470 of 3,528 games matching Indie, newest first · updated 13 Oct 2026

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StarMade

Crossplay
$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
66% of 2,199

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
76% of 17

Redefining Strategy in RTS with Foresight. Win epic battles with wits, not dexterity. Foresight automates typical logistic chores for you reasonably so that you can focus on the battle instead. Create your armada and destroy your enemies with strategy!

Steam Tags:

Bloons TD 5

Deck PlayableCrossplay
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
94% of 10,796

Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
87% of 9,418

Dungeon of the ENDLESS™ is a Rogue-Like Dungeon-Defense game, in which the player and their team of heroes must protect the generator of their crashed ship while exploring an ever-expanding dungeon, all while facing waves of monsters and special events as they try to find their way out...

If you loved these, you'll love this

Door Kickers

Deck PlayableCrossplay
−34%
$$
Released
Price
$$ · Standard · On sale −34% until 22 Oct
Players
👥 Not stated
Reviews
94% of 8,045

Door Kickers is an innovative realtime strategy game that puts you in charge of a SWAT team and lets you command them during a tactical intervention.

If you loved these, you'll love this

DG2: Defense Grid 2

✓ Deck Verified
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
86% of 2,709

Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.

Murder Miners

✓ Deck VerifiedCrossplay
$
Released
Price
$ · Cheap
Players
👥 Up to 30 players
Reviews
87% of 3,965

The #1 rated Xbox Live Indie Game. Halo-inspired. Destructible/constructible environments. Vehicles. Zombie survival. Hookshots. Infection mode: Be the zombie & eat the dead to level up your zombie abilities. Community playdates are still hosted every week, join us!

If you loved these, you'll love this

Of Guards And Thieves

Deck PlayableCrossplay
Free
Released
Price
Free
Players
👥 Not stated
Reviews
85% of 4,316

Of Guards and Thieves is a multiplayer stealth game in which high-powered guards face off against fast and elusive thieves in a contest of wits. Outsmarting the enemy and shooting your way through to the goal are equally valid strategies. Simple rules, emergent gameplay and high replayability.

If you loved these, you'll love this