Online co-op Collectathon games

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

Showing 51–60 of 178 games matching Collectathon · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
92% of 3,540

Supermarket Chaos is a cozy organizing simulator where you sort 4,668 products in a messy supermarket. Enjoy the satisfaction of stocking shelves in a calm, relaxing atmosphere.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
50% of 2

Backrooms: The Void is a cooperative psychological horror game for 1–4 players. Trapped in an endless emptiness where space feels alive and reality constantly distorts, you must navigate decaying corridors, forgotten places, and impossible structures while something unseen follows your every move.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
61% of 113

A co-op incremental dump-digging sim. Tear through endless trash, cash in your junk, upgrade your gear, and hunt for the Bitcoin you threw away. Dig with friends, get rich, get distracted, repeat.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
100% of 2

Mudventure: 4-player co-op survival on shifting 3D mudflats. As a cute mole, dig for resources and repair your ship. Use terrain transformation to carve paths, explore caves during real-time tides, and defeat 5 giant bosses. Escape with friends before the sea swallows the island!

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
88% of 472

Farm RPG is a menu based farming RPG/MMO. Build your farm, grow crops, fish, craft, and explore. Unlock a variety of exciting daily activities as you progress. Engage with helpful townsfolk and collaborate with fellow players in a vibrant community for trading and teamwork.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
100% of 1

Backrooms: The Wrong Door is a cooperative psychological horror game for 1–4 players. A single wrong door leads you into a shifting nightmare where reality feels broken, familiar places become hostile, and every step forward may bring you closer to something watching from the dark.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
82% of 106

Relive the golden age of old-school video game stores! Sell hit games, deliver orders, trade and collect retros, hire staff, decorate and grow your store to be the best in town! Disclaimer: some game title parodies might crack you up!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
0% of 1

Backrooms: The Last Observer is a cooperative horror game. Descend into something that resists understanding, where perception itself begins to fracture. You are here not to fight, but to witness — and sometimes, witnessing is the worst thing you can do.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
70% of 37

BE WARY: THIS NIGHTMARISH DARK FANTASY RPG IS A WORK IN PROGRESS! Cut, gnaw, and flay your way across the land of Malorum. Become a bloodthirsty instrument in man’s downfall and crown Deadhaus in gore. Because there’s no saving this doomed world: You are its butcher.

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