Co-op games like Biohazard Protocol

If Biohazard Protocol left you wanting something replayable and tense, you have options. Browse these co-op games for your next favorite. Many of them are fun to share with friends.

Cheaper than Biohazard Protocol

Scavenge Protocol

Scavenge Protocol

Land on strange planets, loot valuable junk, dodge deadly creatures, convert scrap into energy, and desperately attempt to survive with your friends…

0% of 1 Steam reviews are positive$2
Forsaken Facilities

Forsaken Facilities

A 1-4 player coop horror experience. Find your way through everchanging environments to gather precious treasures for your kidnappers.

22% of 9 Steam reviews are positive$0.99
FEEDERS

FEEDERS

The sun exploded. The rich fled underground. You were sent to the top, where the sky burns. They call you Penthouse Rats.

64% of 11 Steam reviews are positive$3.99
The Silent Expedition Echo Protocol

The Silent Expedition Echo Protocol

Co-op first-person horror for 1–4 players. You and your friends are trapped in endless liminal backrooms where nothing makes sense.

100% of 4 Steam reviews are positive$4.99
Descent Into Darkness

Descent Into Darkness

A co-op horror game about descending into the abyss. Explore a procedurally generated underground complex with your friends and escape before the…

50% of 2 Steam reviews are positive$4.99
hora

hora

co-op (1–6 players). close the VENTS, manage resources, and explore dark, procedurally generated sectors filled with unique enemies and upgrades.

67% of 6 Steam reviews are positive$3.99
Operation: Black Genesis - The Immortal Trials

Operation: Black Genesis - The Immortal Trials

top-down co-op survival horror game where players deploy into deadly Quarantined Zones, fight mutated experiments, and extract with everything you…

100% of 1 Steam reviews are positive$4.99
Backrooms: Wit's End

Backrooms: Wit's End

Backrooms: Wit's End is an immersive coop survival horror game, featuring procedurally generated, non-linear level progression and dynamic gameplay…

88% of 48 Steam reviews are positive$4.99
What Lurks Inside

What Lurks Inside

Explore a dark, dangerous scientific facility with three friends… or enemies.

$4.99
Subterranauts

Subterranauts

Subterranauts is a 1-6 player multiplayer horror game with proximity voice chat and terrifying creatures.

76% of 192 Steam reviews are positive$4.99
Inside the Labs

Inside the Labs

Inside the Labs is a 1-4 player online co-op survival horror game.

68% of 73 Steam reviews are positive$3.99
UNLOVED

UNLOVED

UNLOVED is a fast, dark co-op shooter for up to 4 players, built from a Doom 2 mod.

79% of 955 Steam reviews are positivePlayers online now: 9$4.99

Hidden gems like Biohazard Protocol

GRAIN ROT

GRAIN ROT

Ride a cursed elevator into shifting ruins with co-op friends, smash furniture for loot, feed the Grinder for gold, then make it back alive to…

87% of 2,202 Steam reviews are positivePlayers online now: 331$9.99
CRYO

CRYO

CRYO sends 1-4 technicians into abandoned Antarctic facilities to restore systems, recover research, and get out alive.

87% of 555 Steam reviews are positivePlayers online now: 144$14.99
Subterror

Subterror

Explore abandoned biospheres at the bottom of the ocean, alone or with up to 4 friends.

90% of 400 Steam reviews are positive$7.99
Inferno Protocol

Inferno Protocol

A co-op survival horror in a maze that rearranges itself behind you.

78% of 203 Steam reviews are positivePlayers online now: 6$13.49
Forsaken Frontiers

Forsaken Frontiers

Step into the frozen unknown in Forsaken Frontiers, a cooperative analog horror adventure set in the unforgiving embrace of an everlasting winter.

82% of 413 Steam reviews are positive$14.99
Backrooms Lost Runners

Backrooms Lost Runners

Trapped in endless yellow corridors with co-op friends, you share supplies, solve puzzles, and try to stay quiet because the entities listen.

74% of 662 Steam reviews are positive$13.99
Fish Stick Protocol

Fish Stick Protocol

Enter strange, unpredictable dimensions with up to 8 players to grab artifacts and survive the chaos waiting inside.

78% of 132 Steam reviews are positive$9.99
Bunker Invaders

Bunker Invaders

A co-op horror game where you must scavenge for loot and maintain the bunker to keep it standing

82% of 103 Steam reviews are positive$6.99
The Backrooms: Survival

The Backrooms: Survival

Survival horror with roguelike elements. Explore randomized levels with different items and entities while trying to maintain your thirst, hunger…

82% of 880 Steam reviews are positive$9.99
Backrooms: Extractions

Backrooms: Extractions

A co-op horror run for 1 to 6 field agents sent back into the Backrooms to find lost agents, send their data, and hold out until extraction opens.

72% of 730 Steam reviews are positivePlayers online now: 2$6.99
UNDERWARD

UNDERWARD

UNDERWARD is a 1-4 player co-op horror exploration game. Investigators must carry «TEST-SUBJECT» monsters from a deadly underground abandoned…

72% of 594 Steam reviews are positive$9.99
Backrooms Society

Backrooms Society

Backrooms Society is a 1-8 player co-op horror game about pushing into shifting backrooms levels together, grabbing loot, and getting out alive.

79% of 594 Steam reviews are positivePlayers online now: 15$6.99

Newest co-op games like Biohazard Protocol

Hazard Levels

Hazard Levels

Enter unstable rifts, survive otherworldly creatures, and grab bizarre ingredients to fuel a secret brewery hidden beneath a British pub.

70% of 107 Steam reviews are positive$7.49
BLINDSIGHT

BLINDSIGHT

Your voice lets you see. It also lets them find you. BLINDSIGHT is a co-op horror game for 1 to 4 players about hauling loot through the dark and…

100% of 3 Steam reviews are positive$6.79
Hazard Crew

Hazard Crew

A co-op bodycam extraction horror game for 1-4 players. Descent into procedurally generated mazes as an underpaid asset recovery crew.

100% of 5 Steam reviews are positive$6.99
Anomaly Protocol

Anomaly Protocol

A 1-4 player co-op horror and hunting game. Descend into an anomaly-filled underground to collect rare lure stones, return to the surface and use…

76% of 51 Steam reviews are positive$6.99
Dead Margin

Dead Margin

Survival is optional, rent is mandatory. Team up in Dead Margin, a brutal 1-4 player co-op horror.

100% of 9 Steam reviews are positive$5.99
Inferno Protocol

Inferno Protocol

A co-op survival horror in a maze that rearranges itself behind you.

78% of 203 Steam reviews are positivePlayers online now: 6$13.49
V.A.U.L.T. PROTOCOL

V.A.U.L.T. PROTOCOL

A 6-player co-op horror game where you loot valuable relics from nuclear wastelands to satisfy the perfect AI, KUT-ANA.

80% of 5 Steam reviews are positive$9.99
Holey

Holey

A co-op horror game where you are part of a crew sheltering in a collapsed tunnel, scavenging loot across maps filled with deadly creatures born…

80% of 70 Steam reviews are positive$7.99
GRAIN ROT

GRAIN ROT

Ride a cursed elevator into shifting ruins with co-op friends, smash furniture for loot, feed the Grinder for gold, then make it back alive to…

87% of 2,202 Steam reviews are positivePlayers online now: 331$9.99
Dig, Dig, Die

Dig, Dig, Die

Grab a shovel and up to five co-op friends, fly a cursed ship to haunted graveyards, and dig up loot while monsters listen for every swing and…

64% of 331 Steam reviews are positivePlayers online now: 6$7.99
Zoo Protocol

Zoo Protocol

ZOO PROTOCOL is a co-op sci-fi horror for 1–5 players with a dark story about escaping an abandoned energy facility.

94% of 34 Steam reviews are positive$5.99
OK Boomer

OK Boomer

A 4-player cooperative survival horror where you’ll explore the terrifying depths of the internet alongside your team of analog tech enthusiasts.

67% of 51 Steam reviews are positive$7.99