Single-player games like Operation Dimera
Below are 14 single-player Steam games similar to Operation Dimera, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. Shares Action and Adventure with Operation Dimera.
Gather your courage and face the ghost danger.Clean the curses and hunt the ghost!
- 3
Alchemists
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. 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!
- 9
Behind The Backrooms
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. Shares Adventure with Operation Dimera.
Behind the Backrooms is a 1-4 player co-op horror exploration game
- 10
Obscurefiend
Single-player alternative to Operation Dimera — playable solo, no multiplayer required.
Obscurefiend is a first person horror shooting game developed using Unreal Engine 5. realistic visual effects, smooth game controls, and intense battles with terrifying monsters.
- 11
Lost Footage : Sound In The Silence
Single-player alternative to Operation Dimera — playable solo, no multiplayer required.
Sound in the Silence is a horror game where you must find and destroy 10 Totems in a quiet, ominous environment. With each Totem destroyed, more monsters appear and eerie sounds increase, raising the tension. Survive the growing fear and complete your mission before it's too late.
- 12
Behind The Backrooms : Lost Levels
Single-player alternative to Operation Dimera — playable solo, no multiplayer required.
Behind The Backrooms: Lost Levels is survival horror game where you explore eerie, hidden levels filled with terrifying entities, cryptic puzzles, and relentless dangers. survive deadly encounters, and find your way out—before you become another lost soul trapped forever.
- 13
Scary Together
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. Shares Adventure with Operation Dimera.
Scary Together is a 4-player co-op horror game. Explore terrifying levels filled with jump scares, solve puzzles, and experience the thrill of being scared together. Perfect for players who love screaming—and laughing—with friends. Screams turn into laughter as you watch your friends freak out
- 14
LIMINAL ESCAPE
Single-player alternative to Operation Dimera — playable solo, no multiplayer required. Shares Adventure with Operation Dimera.
LIMINAL ESCAPE is a co-op survival horror game for up to 4 players, where you and your friends will fight to escape from the unsettling, endless depths of Liminal space.