Online co-op Outbreak Sim games

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

Showing 1–10 of 27 games matching Outbreak Sim · updated 12 Oct 2026

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$ · Cheap
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Reviews
33% of 6

It’s a post-apocalyptic game set in the year 2067. The game will feature full voice acting and all in-game texts and descriptions will be localized. It will be released in 9 languages. Unreal Engine 5.4.4 Unreal Engine 5.2.1

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Released
Price
$ · Cheap
Players
👥 Not stated

In a world ravaged by climate collapse, flee a ruthless mafia alongside fellow survivors in this cooperative turn-based strategy game: manage hunger, thirst and resources while journeying together toward safety.

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Released
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$ · Cheap
Players
👥 Not stated
Reviews
100% of 2

No Emergency: Pestilence plunges players into the epicenter of a mysterious epidemic, where every arriving patient could be carrying a mutating pathogen, and a single mistake in a prescription turns the cure into poison.

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$
Released
Price
$ · Cheap
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A multiplayer social survival game inspired by the “Bunker” board game, where players must convince others that they deserve a place in the shelter. Debate, argue, reveal your character traits, and vote - only a few will survive.

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$$ · Standard
Players
👥 Up to 4 players
Reviews
0% of 11

Virus Lab is a first-person simulation where you run a high-security research facility. Play solo or team up in co-op with up to 3 friends. Handle dangerous samples, manage scientists and equipment, prevent containment breaches, and push research forward under constant pressure.

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Price
$$ · Standard
Players
👥 Not stated
Reviews
7% of 76

In a post-apocalyptic world build and lead your own colony under the constant threat of the undead. Recruit survivors, assign roles and decide how your group survives. Fight enemy colonies or form alliances in FPS or TPS combat.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players

Co-op or solo sci-fi horror. Purge a biological outbreak with flamethrowers & grenades. Explore infested zones, grab keycards & stuff, then trigger the protocol to burn the Mother Organism. Team up. Erase the threat

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$$
Released
Price
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Players
👥 Not stated

Become the plague in an asymmetrical player verses simulation battle for immortality. Infect populations, collapse economies, and harvest the dead to fuel your path to lichhood; only if you can conquer an adaptive world fighting to survive.

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