Co-op games like Monstrum 2 Beta
Below are 8 cooperative Steam games similar to Monstrum 2 Beta, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Monstrum 2 Beta page.
Ranked picks
- 1
Monstrum 2
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Indie with Monstrum 2 Beta.
Monstrum 2 is a survival horror game for 2-5 players, set inside the procedurally-generated sea labyrinth - Sparrowlock. Join a team of prisoners evading the terrors within whilst figuring out how to escape, or become one of the deadly monstrosities whose only goal is to hunt them down.
- 2
SCP: Breakout
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Adventure with Monstrum 2 Beta.
SCP: Breakout is a survival horror game set in the world of the SCP Foundation, In the game, you play as a Class-D a prisoner of the Foundation who has been given an extremely rare and lucky chance to break free from your cell escape a secret facility. your chances aren't looking very good...
- 3
Video Horror Society
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Indie with Monstrum 2 Beta.
Choose between good and evil and fight for your life in Video Horror Society, a thrilling 4v1 asymmetric action tribute to the 1980s horror era-- where small town teens face off against terrifying monsters brought to life from the aisles of a 1980s video store.
- 4
HorrorBox
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Indie and Early Access with Monstrum 2 Beta.
HorrorBox is a Multiplayer Horror Game dripping with an eery cinematic experience set in the 80s. Utilize tools and work together to survive either PvE or PvP fright nights...
- 5
Specimen 13
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Indie with Monstrum 2 Beta.
In Specimen 13 you play as one of five survivors (or a traitor) who find themselves as unwilling subjects in an experiment set on a mysterious island. Alternatively, play as the Specimen and prevent the survivors from escaping through the underground elevator.
- 6
Shadows in Silence
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Indie with Monstrum 2 Beta.
Shadows in Silence is a 4 vs 1 multiplayer horror game. One player takes on the role of the killer - the witch Elliana and her cat named Sharm. And the other four players play as survivors trying to neutralize the killer.
- 7
Long Carnage
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Indie with Monstrum 2 Beta.
Long Carnage is a first-person cooperative horror game for up to 4 players. Explore an isolated house, find resources, restore power, and survive unique killers with their own mechanics in dynamic and unpredictable matches.
- 8
The Monster Mole
Online Co-op alternative to Monstrum 2 Beta — playable with friends. Shares Action and Indie with Monstrum 2 Beta.
An asymmetrical PvP horror survival game where you either try to survive and escape a vicious beast with your teammates, or hunt your prey as the nearly-blind monster that inhabits the surroundings of the fictional town of Dry Lake.