Best online co-op games for 8+ players

Online co-op games on Steam with room for 8+ players, going by the player count on each game's store page. Games that don't say how many can play aren't included.

Showing 261–270 of 914 games matching 8+ players, best rated first · updated 13 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
85% of 127

Kohan: Immortal Sovereigns is the first game in the award-winning real time strategy series. Awarded “RTS Game of the Year” by PC Gamer and Computer Games Magazine, Immortal Sovereigns is a real-time strategy game set in a fantasy world where you take on the role of an immortal known as the Kohan.

Steam Tags:
$$
Released
Price
$$ · Standard
Players
👥 4–12 players
Reviews
79% of 3,109

First Class Trouble is a party game where players must work together and against each other to survive a disaster. The goal is to shut down a deadly A.I. Some players are impostors, secretly playing as human-looking killer robots intent on betraying the other players.

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OxyRail

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 1–16 players
Reviews
80% of 1,097

Oxygen Train is an open-world survival train game. Wake up in a world lacking oxygen. Chop trees, mine, gather resources, upgrade your unique train. Survive by planting, fishing, farming, exploring, fighting. Build your train kingdom. Supports 1-16 online co-op.

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$
Released
Price
$ · Cheap
Players
👥 Up to 10 players
Reviews
78% of 28,582

Zero Hour is a tactical FPS with online team-based game play that takes place in a variety of fictional locations interpreted in Bangladesh with Real-life scale & resource management. It brings a grounded, close quarter combat experience to the game.

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Line War

Deck Playable
$$
Released
Price
$$ · Standard
Players
👥 Up to 8 players
Reviews
80% of 1,077

A new type of RTS with elements from 4X, Wargame, and Real-Time Tactics. Draw commands and execute a superior strategy to defeat your opponent, focusing on high-level decisions rather than constant micromanagement.

Keep Digging

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
79% of 2,943

Keep Digging is a digging survival craft game for up to 8 players. Explore a procedurally generated 5000m underground world, bring back ores, blueprints, and fossils, then use the smelter, forge, and enchantments to build your gear! Team up in co-op or compete for items in PvP.

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The Anomaly Project

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 1–8 players
Reviews
81% of 534

Your goal is simple, spot anomalies to escape. Play alone or together with up to 8 players in online co-op. Make the right decisions to advance to the next level, or risk being reset to the beginning!

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Peekaboo

Deck Playable
−75%
$
Released
Price
$ · Cheap · On sale −75% until 23 Oct
Players
👥 Up to 16 players
Reviews
79% of 2,781

Peekaboo — Hide & Seek Online. Players are divided into two teams: props and hunters. Props take the form of objects and adopt their physical properties, and hunters are trying with all their might to find them.

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Mayhemers

Deck Playable
$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
84% of 154

"Mayhemers" is a multiplayer chaos creation game for up to 8 players with a procedurally generated map. Choose your side: Will you be a Mayhemer or a Guardian? Mayhemers' task is to create chaos. Guardians' task is to stop them.

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