Online co-op Experimental games

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

Showing 1–10 of 11 games matching Experimental · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 1–4 players

A short film you shoot your way through with 1-4 players. The entire game is one fifteen-minute battle, scored to a single piece of music; it's an experiment in using music and gameplay to capture a brief but powerful feeling: The Last Stand. "This is it! We fight, or we die!"

$
Released
Price
$ · Cheap
Players
👥 Not stated

Survive your initiation ritual, inside a massive Masonic temple. Survive deadly trials, uncover hidden symbols, and climb floor by floor toward the top of the lodge. Choose your character, unlock secret scenarios, and prove you are worthy to join the Illuminati and claim world power.

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$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
92% of 13

EMBRACE/CONTROL CHAOS! Mutate your build in extreme uniquely weird ways to nuke this petri dish clean from eldritch germs in a frantic top‑down physics arcade where every mechanic is bizarre and emergent! Use strangest powers like warping walls, hexes and annihilation and be an arcane germaphobe!

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
69% of 23

Codename: Terranova is a Co-Op Communication Game between two Players: Agent (PC) and Operator (Web App) . Speed and precision are required to complete the Mission within the time limit and set a new record. Will you have the necessary concentration?

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
36% of 22

This is a early access game where you haveto Survive against other Natives Online by Building a base and gathering resources for food and crafting weapons to defend yourself. There is Base Building,Crafting,PVP, Workbenches and Gear sets for protection. Please support us to build this game into the best survival games on the market. The game will be in early access for 2-3 years as we will add new content to the game every month building the game to its full potential. Remember Surviving is the key to success!

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
76% of 55

R.A.V.E is a multiplayer concert simulator for experiencing livestreamed events. Create the stage, set the lighting, and start the show! Your audience awaits.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
79% of 63

In this weirdcore 1-4 player survival horror wander the infinite mall and encounter the strange and unique entities that inhabit it. Death is your best guide in learning how to exist in this place.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
97% of 915

Kukoro: Stream chat games is a collection of +20 games, from 2D shooters to tactical RPG mini-games, with a high engage for your Twitch community. You and your audience will be able to play with you in real time receiving the individual relevance they deserve, growing your channel day by day.

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$
Released
Price
$ · Cheap
Players
👥 Up to 10 players
Reviews
88% of 957

Share the love and die trying! KarmaZoo is a joyful, altruistic, cooperative platformer where up to 10 random players help each other with the unique abilities of 50 different characters - all for the sake of good Karma.

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