67%Strong matchDark Hours
84%2k84% positive reviews, Very Positive across 2k reviews·Horror · Multiplayer
—Operation Dimera is a co-op game for up to 3 players where you and your friends must save the world. Tackle diverse missions. Work together to solve puzzles that stand in your way and customize your weapons to be ready for anything! The fate of the world is in your hands!
Alright, soldier! I'm Commander of Operation Dimera, and I'm here to welcome you to the real fight. Our dimension is tearing apart, demons from the abyss are pouring in, threatening our world, and only you can stop them!
In Operation Dimera, you and your unit will face a variety of challenging missions. Whether it's sealing dimensional rifts that are popping up all over the globe, hunting down and capturing the rogue demons, rescuing innocent civilians caught in dangerous zones, or even gathering crucial intel needed to analyze this new threat.
This isn't a solo mission. Teamwork is the core of everything we do! Bring up to 3 friends to fight alongside you against the darkness. Work together to solve complex puzzles that stand in your way, because sometimes, brute force just isn't enough.
And of course, every soldier needs to be ready for anything. Choose your trusty weapon from a diverse arsenal and customize your gun freely to match your combat style and preferences. Whether it's increasing firepower, improving accuracy, or extending your magazine capacity – it's all up to you!
Our world hangs in the balance, and you are our last hope! It’s time to suit up, grab your gear, and prepare for Operation Dimera! See you on the battlefield!
Ready to save the world with us?
Operation Dimera is a co-op game for up to 3 players where you and your friends must save the world from interdimensional demons. Tackle diverse missions including sealing rifts, capturing demons, rescuing civilians, and gathering intel. Work together to solve puzzles that stand in your way and customize your weapons to be ready for anything! The fate of the world is in your hands!
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
All matches
Finding similar games…
Dark HoursShares First-Person · Dark · Mystery , adds Online Co-Op84% · 2k positive reviews67%Strong match—
DemonsomniaShares Shooter · FPS · First-Person , adds Online Co-Op33% · 277 positive reviews67%Strong match—
MalumShares First-Person · Realistic · Zombies , adds Survival Horror73% · 400 positive reviews64%Good match—
Strange BrigadeShares Shooter · Zombies · Horror , adds Online Co-Op84% · 8k positive reviews62%Good match—
OccultShares First-Person · Dark · Mystery , adds Psychological Horror72% · 1k positive reviews64%Good match—
DemonologistShares First-Person · Dark · Demons , adds Online Co-Op86% · 18k positive reviews63%Good match—All matches
The best games like Operation Dimera are Dark Hours, Demonsomnia, Malum, Strange Brigade, and Occult.
Match on: filter matches for Operation Dimera by tag
Filters all matches
65%+Strong matches
50%+Good matches