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 91–100 of 178 games matching Collectathon · updated 12 Oct 2026

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

Backrooms: Flicker is a cooperative horror game for 1–4 players. Navigate a fractured reality with no clear form or end. Whatever's keeping you here doesn't speak — it simply waits. Don't flicker, or you won't find yourself!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 6

Death nomad is a survival game with procedurally generated environments. The environment will force you to improve your equipment, defense and constantly move around the world, prolonging your chances of survive.

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

Backrooms: Noise is a cooperative horror game for 1-4 players. Explore a dimension where even silence doesn't sound right. The world doesn't explain itself - and the more you try to understand it, the further you feel from the answers.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
47% of 161

Summoners War: Rush is an idle tower defense RPG where you collect and strengthen your Monsters to build a team and defeat waves of enemies! Fight increasingly powerful foes across Stage Mode and Tower Defense Mode. Build your ultimate team and dominate every challenge!

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
59% of 27

Run your own aquarium and evolve fish into mermaids! Fish Collector is a relaxing aquarium tycoon game that blends fish farming, idle resource production, match-3, and merge gameplay to build your fantasy ocean world.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
0% of 5

Backrooms: No Level is a cooperative horror game for 1–4 players. You think you can complete anything, but what if you can't? What if nothing is real and you can't complete anything, even with friends, it will be extremely difficult to complete this game!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
55% of 45

Click. Water. Grow. Harvest. Explore. Upgrade. Profit. An incremental-minimalist clicker farming game about growing your own farm full of money trees! 🌳 Ever wondered what it'd be like if money grew on trees? 💸Online co-op supported!

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
25% of 8

Backrooms: Recode is a cooperative horror game for 1–4 players. The rules don't stay the same. Neither do the walls, the halls, or your thoughts. If there's a pattern, it's not meant for you to understand.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
86% of 652

A co-op friendslop game with a heavy focus on customization via drawing. Scavenge liminal bunkers and obtain artefacts that may or may not aid you and your friends.

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