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 111–120 of 178 games matching Collectathon · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
47% of 38

As you find yourself stranded on an island overrun by vicious dinosaurs and cretures, you must fight to survive and make your escape. Explore the island's dangerous landscapes, capture and raise dinosaurs to aid your journey, and outsmart the deadly creatures.

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

Explore a dark world filled with cursed creatures, solve ancient puzzles, and confront powerful bosses on a journey where each relic discovered reveals the secrets of eternal decay.

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$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
83% of 80

The world ended, but life goes on. Tame mysterious monsters, raise and evolve them, and put them to work as you rebuild a farm from the ashes, restore struggling towns and rise up against the Epoch Syndicate. Play solo or with a friend in online co-op, and take your adventure anywhere.

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
83% of 37

Experience the thrill of a Japanese festival with a unique twist! This online co-op game combines the fun of "Ball Scooping" (like goldfish scooping, but with balls!) and "Shooting Gallery" games.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
70% of 17

When I woke up, I found myself on an uninhabited island. And I had nothing with me! Anyway, the first priority is to find food to avoid starvation. At night, mysterious creatures attack, so I need to craft equipment and build a base to defend myself! In the end, there's a boss waiting for me!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
52% of 21

Backrooms: The Silence is a cooperative horror game for 1-4 players, where you have to explore and fight the game master on your own, use your own abilities to survive in this complex world, play with your friends to get the full range of emotions!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
58% of 24

Try to survive in these endless corridors and mazes, sometimes they seem the same, sometimes they seem completely different, and what if you are already going crazy? Can you survive here? You will need to look for supplies by type of water and food

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$
Released
Price
$ · Cheap
Players
👥 Up to 21 players
Reviews
80% of 15

The best multiplayer catnip mowing simulator on Steam. Up to 20 players, ragdoll kitty physics, unlockables, treasure, a chill 33-song soundtrack, and controls that definitely work as intended... most of the time.

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$
Released
Price
$ · Cheap
Players
👥 1–5 players
Reviews
62% of 8

Jeff the Janitor is a co-op survival horror game for up to 1-5 players. Sneak into the mall at night for a heist, but beware - Jeff, the night-shift janitor, is on watch! Complete your shopping list, and make your escape.

If you loved these, you'll love this