Biohazard Protocol
Every expedition is a gamble. Explore procedurally generated underground facilities, recover valuable loot, survive unique monsters, and escape before it's too late.
The top results based on the latest update are Too Deep To Quit [Score: 1.0], Peace Dice [Score: 1.0] and Detour [Score: 1.0] The top rated games you can find here are PANICORE [SteamPeek Rating: 6.3] ranked #10, Mimicry [SteamPeek Rating: 4.3] ranked #16 and Subterranauts [SteamPeek Rating: 4.0] ranked #34 Also don't forget to check the newest releases OK Boomer [Release date: 2026-06-25] ranked #13, University 33 [Release date: 2026-04-08] ranked #24 and WALKER [Release date: 2026-03-09] ranked #6
Every expedition is a gamble. Explore procedurally generated underground facilities, recover valuable loot, survive unique monsters, and escape before it's too late.
Grab your gear and your friends for a hilarious, golden-age co-op adventure! Dive into cursed temples, hunt for the ultimate treasure, and work together to stay alive. Beware of everything and everyone... after all, only the survivors get to split the gold!
The post-apocalypse. When some are trying to survive in a new world, others join the detective agency "Peace Dice", which searches for evidence of mutants. Go on a raid and don't come back empty-handed!
Detour is an online co-op horror game featuring procedural generation, proximity chat, winding mazes and scary monsters. You and up to 3 of your friends are dropped into a maze. It is unknown how you got there, but your goal is clear: survive and escape.
“COLLAPSE COMPANY” is a round-based roguelike action FPS for 1–4 players exploring shifting underground dungeons. Your goal is to activate the deep Particle Acceleration Reactor and escape before time runs out. Gather resources, upgrade gear, and push into riskier zones.
This is a 1-4 player co-op survival extraction game. Head out from your base, explore dangerous zones, gather resources, craft gear, and build a plane, boat, or other vehicle to escape each location and get one step closer to the bunker.
An online co-op horror game where you and your crew hunt monsters inside a massive WALKER. Use your environment, items, or anything at your disposal to protect your WALKER.
Dive with up to four players into the Depths. DELVERS is a first-person PvE co-op adventure set in a dark fantasy world with a distinct retro pixelated visual style, featuring procedurally generated dungeons that reshape themselves every time you enter.
Treasure Cove is a co-op survival horror adventure where you and your friends set out to explore a mysterious island in search of lost treasures. With proximity voice chat, realistic visuals, and terrifying creatures lurking in the darkness, every expedition can quickly become a fight for survival.
A sci-fi horror game for 1–8 players. Explore procedurally generated zones, collect strange artifacts, survive unique monsters, and decide whether to leave... or keep going.
PANICORE is a survival horror game that mixes permadeath, AI monsters and a co-op experience up to 5 players (4 players in demo). Try to escape and don't get caught, but beware: they don't only hear your steps, but also your voice.
A 4v1 asymmetrical horror where survivors escape by solving shifting puzzles. Use always-on proximity voice to manage sanity, but speak too loudly and the monster will find you.
YOUR BODY IS YOUR WEAKNESS. A four-player co-op horror game that puts you in the shoes of the chief scientists of a research facility. Your sole objective is to carry out the self-destruct plan and escape the facility.
A 4-player cooperative survival horror where you’ll explore the terrifying depths of the internet alongside your team of analog tech enthusiasts. Use old-school technology to purge glitches, preserve your digital sanity, and survive the strange monsters lurking in the deep web.
Your loot doesn't go in a backpack. It goes into Tally, and she grows. Four of you strip a house room by room and feed all of it to her. Feed her too little and she eats the crew; feed her too much and she won't fit back through the door.
A co-op (1-4 players) or solo first-person extraction horror. Gather your crew, track down the 'Bio-Keys', and escort them back to us. Don't worry, we keep everything under absolute control down there. Speed up the stairs across procedural worlds and return to where you belong. We need you alive.
A terrifying online horror game where one player becomes an impostor monster. Disguise, hunt, and destroy your friends — or work together to survive. Mimicry is a fast-paced, multiplayer fun game full of deception, fear, and chaos.
A light horror roguelike adventure through a post apocalyptic world, with airships.
Crew THE MULE, a colossal drilling machine, with up to three friends and descend into the whispering earth. Man the instruments, sortie into the dark for the specimens the Bureau wants, and shut the door before what heard you gets inside. Sell. Descend deeper. Try to come back up.
Star Crew is a 1-8 player co-op sci-fi roguelite. Maintain subsystems, fend off enemies, and stay alive long enough for evac to arrive. Powerful upgrade choices, procedurally-generated ships, and permanent progression. Survive with friends or handle things all by yourself.
Fight your way through a post-war nuclear world by scavenging supplies, building your rocket, and taking on bosses! Explore a procedurally generated open world and find items to help you escape.
A co-op horror adventure set in a fantasy world where up to 4 players explore procedurally generated castles and dungeons, scavenging treasures for the King. Beware of traps, and what else might lurk in the shadows.
Quack Hunters is a co-op monster hunt featuring the world’s bravest ducks! Grab your gear from the van, track the monsters, and secure the catch before the sun comes up. But stay sharp – your beam gun is prone to overheating in the heat of the moment!
Shoot to move. Miss and fall. A chaotic physics-based movement game where your weapon is your only way forward.
University 33 is a 1-4 player co-op anomaly detection simulator. Observe your surroundings with unwavering focus: follow the protocol, identify the irregularities, and choose the correct path to reach Floor 33. One lapse in judgment restarts the cycle.
Trapped in a vertical facility where food comes from above and always runs out before it reaches the bottom. Talk, trade, betray or climb. Every night the cages lock and only two can stay.
Backrooms #999999999 is a singleplayer/4 player co-op horror exploration game. Unlock the puzzles, survive the entities, escape the deadly geometry and try to reach the final level in one piece. Good luck, wanderer!
A co-op horror rescue game for 2-4 players. Locate injured hikers in dangerous forests and carry them with your friends to the rescue point before you get eaten.
Explore a sprawling cave network with your friends in search of fun occult loot for the Crypt Club! Find fun-to-use items, torn pages of a tome, and even a monster lurking within the depths.
A raccoon co-op horror extraction game. Infiltrate procedural ruins, loot everything and extract the relic. Mammon, the Greed Demon, is watching… Stay away from his curse!
G.H.O.S.T. — a tactical co-op for 1-4 players. Your main objective: track the Ghost via anomalies and capture it before it collects 7 runes to open the portal. Use Devastators, secure torsional artifacts, and remember—you are there to stop the invasion, not to become its victim.
GHOST'INN is a coop game up to 4 players , in which you go fishing for ghost in a charming breton style inn. Flush out spirit, capture them with your fishing rod and become rich !
A 1-4 player coop horror experience. Find your way through everchanging environments to gather precious treasures for your kidnappers. The more you gather the longer you will survive.
Apartmental is a survival crafting game set in the depths of a massive procedurally generated apartment complex. Wake up on the top floor with no way out but down. Make your way forward by tearing apart the environment around you piece by piece.
Subterranauts is a 1-6 player multiplayer horror game with proximity voice chat and terrifying creatures. Your job is to complete assignments by gathering scrap for the Association of Scrap Allocation. Work together with your team to complete assignments, earn company Bucks, and survive!
Co-op horror for 6 players and multiplayer for up to 20 players. Search for items on a randomly generated map and send them into the tube. But be careful: Imitators (Mimics) hide among ordinary things, ready to attack the moment the lights go out.
Assemble a team of E.D.G.A.R robots for a chaotic co-op adventure into ancient temples on rapidly eroding islands. Develop your museum’s collection using the treasure retrieved on each perilous expedition while the corrupt OMEN Corporation is in pursuit. Adventure awaits. Mayhem ensues.
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