Co-op games like Operation Dimera
Below are 8 cooperative Steam games similar to Operation Dimera, 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 Operation Dimera page.
Ranked picks
- 1
Deborg Desolation Pre-Born
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
Deborg Desolation is a first-person indie game intended for the survival of mankind. Train to be a soldier capable of containing any injurious entity to achieve the survival of your own race, seek to plan strategies that allow your advancement without stopping.
- 2
Desdemona
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
Gather your courage and face the ghost danger.Clean the curses and hunt the ghost!
- 3
Alchemists
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
Alchemists is a Co-Op horror game that can be played with at least a minimum of 1 and a maximum of 4 players. Your goal is to expel the evil spirit from cursed places by completing the 4 Element ritual. Destroy the monster alone or with your team using your tools.
- 4
Lastbane
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
Lastbane is a CO-OP asymmetric horror game. Together with your friends, you must try to escape the map silently without being caught by sound-sensitive creatures that react to microphones and in-game voice chat.
- 5
The Corrupted
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
The Corrupted is a high-octane sci-fi PVE shooter defined by satisfying progression and intense boss encounters. Plunge into battlefields consumed by the Anomaly, fighting through relentless swarms, elite hunters, and colossal bosses.
- 6
Xheres
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
Either FPS or TPS, choose your play style and survive the apocalypse on your own or with your friends. But one must know for sure it ain't gonna be easy, there are hordes waiting for you. Not even considering tough ones... Nevertheless it's gonna be fun.
- 7
Demon's Blood
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action with Operation Dimera.
Demon's Blood is a first-person shooter that throws you into a demonic universe. Become a special agent, arm yourself and improve your equipment in different games to repel the demonic forces trying to invade your world.
- 8
Zero Caliber 2 Remastered
Online Co-op alternative to Operation Dimera — playable with friends. Shares Action and Adventure with Operation Dimera.
Zero Caliber 2 Remastered brings the full VR shooter experience to PC - with intense, cinematic firefights, a full single player and Co-op campaign, PvP, a huge arsenal to unlock, and character customization to make you stand out. Jump in if you’re after a proper VR shooter. Out NOW!