Online co-op Combat games

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

Showing 111–120 of 1,027 games matching Combat · updated 12 Oct 2026

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

Survivors-like game with ONLINE CO-OP (1–4 PLAYERS). The man who had always played by the rules was dead.! Mafia Hero: Streets of Survival is an online co-op auto-shooter roguelite for up to 4 players. Build your criminal empire, craft powerful builds, and battle massive bosses.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
95% of 21

Enter the world of Bullet Knight, a fast and brutal boomer shooter that combines roguelite randomness with hand-crafted levels. Each run offers unique challenges filled with relentless action. This game is a tale of love and hate, of nature and humanity.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
100% of 4

A colorful, screen-wrapping arcade space shooter for solo, local, and online multiplayer. Dodge asteroids, blast enemies, collect powerful abilities, and build a one-of-a-kind ship—alone or with questionably helpful friends.

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

Protect the last braincell in a neon score-attack survival comedy. Grab Thought Crumbs, dodge the doomscroll, dash through notifications, and choose increasingly questionable upgrades as the feed gets faster.

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

Fight through 11 cursed depths in a dark-fantasy arena roguelite, or risk your gear in Leaderboards Till I Die! Choose your hero, build powerful combinations, face bosses, and push for a better run. Bank your finds or lose what you carry when death ends your expedition.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
72% of 129

An Idle Space MMORPG where you progress at your own pace, but the universe is built together. Explore a procedural galaxy of nearly 50 million star systems alone — or join a Squadron to pool resources, raise space stations, upgrade shared buildings, and expand across the stars as one.

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$
Released
Price
$ · Cheap
Players
👥 Up to 16 players
Reviews
85% of 128

Become an anime character. Write your own incantations and cast over 100 spells using your microphone. Battle in duels, team fights, and chaotic free-for-all matches.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
68% of 166

Dragonhold is a dragon-riding extraction ARPG. Dive into missions, fight on dragonback and on foot, loot powerful gear, then extract (at any time) back to your island to grow your town and rebuild Dragonhold castle. Playable solo or in online co-op.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
69% of 13

Galaxor is an online sci-fi strategy game where you build planets, research technologies, command fleets and expand your empire across the galaxy. Manage resources, join clans, take part in events and face alien threats in long-term space warfare.

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
66% of 24

Fight through massive alien hordes, craft devastating builds, and discover powerful loot combinations in this fast-paced sci-fi action roguelite. Every decision shapes your run as you push your build to impossible levels of power, alone or with up to four players.

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