Online co-op 2.5D games

Every online co-op 2.5D game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 1–10 of 138 games matching 2.5D Β· updated 12 Oct 2026

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Free
Released
Price
Free
Players
πŸ‘₯ Not stated
Reviews
100% of 1

Free online 2D space combat with PvPvE. Pick a faction, upgrade your ship and take on other pilots and hostile fleets in PvP, wave-based wormholes, bosses, weekly events and clan wars across more than 20 maps.

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$
Released
Price
$ Β· Cheap
Players
πŸ‘₯ Not stated
Reviews
53% of 247

Play as Agent Eva to follow the trail, or as Analyst Miles to manage the operation. Dual Protocol is an asymmetric noir puzzle game where two players progress only through conversation. Without seeing each other’s screens, combine the data you have and uncover the truth behind the Castellari murder.

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$
Released
Price
$ Β· Cheap
Players
πŸ‘₯ Not stated

Dig through a destructible underground world, uncover valuable ores, build an arsenal of powerful weapons, and survive relentless hordes of enemies. Extract, upgrade, and descend deeper in this mining-focused action roguelite.

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$$
Released
Price
$$ Β· Standard
Players
πŸ‘₯ Up to 4 players
Reviews
100% of 26

Your life begins anew in front of an imposing mountain... Climb and explore it with a wide cast of characters in this dungeon crawler RPG with up to four player Co-op.

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$$
Released
Price
$$ Β· Standard
Players
πŸ‘₯ Not stated
Reviews
100% of 1

Explore a dying fantasy world, lead heroes and armies, develop castles, and fight tactical turn-based battles where every encounter can play by different rules. Discover powerful entities, transmute them into cards, and take your collection into the League.

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Free
Released
Price
Free
Players
πŸ‘₯ Not stated
Reviews
14% of 7

Reclaim a world overrun by a rogue AI in this free-to-play 2.5D isometric MMORPG. Transform into a cyborg and hunt robots and combat drones across New Delhi, Lahore, Dhaka, Manila, Washington, D.C., and beyond. Laria, your AI companion, listens and answers aloud. No time limits or subscriptions.

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$
Released
Price
$ Β· Cheap
Players
πŸ‘₯ Not stated
Reviews
100% of 1

Survivors Extractor / Co-op Nephew Liberator. The Terrorist Abu Zayebe just netted your Nephew and his classmates and now he's dragging them through 15 square miles of National Park

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$
Released
Price
$ Β· Cheap
Players
πŸ‘₯ Up to 16 players
Reviews
100% of 3

Adoros is dying. A catastrophic Void Anomaly has torn open the planet’s surface, warping reality and unleashing forces no one fully understands. You are a Cube Crusader sent to crush the Anomaly, at any cost.

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$
Released
Price
$ Β· Cheap
Players
πŸ‘₯ Not stated

A lightweight TTRPG companion for running combat and scenes with essential virtual tabletop (VTT) features. Smart grid detection, video maps, and instant party sync. Bring your own assets. Great for in-person or as a remote-play companion.

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$
Released
Price
$ Β· Cheap
Players
πŸ‘₯ Up to 3 players

An online desktop idle game where every keystroke earns Score. Discover hidden costumes by typing secret words, team up with friends for bonus rewards, avoid going AFK, and climb the global leaderboard.

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