DeadOS is an early access zombie outbreak simulator by Benn Powell that focuses on city-wide scenarios where you have access to fully customize your apocalypse experience from beginning to end. Simulation. Sandbox. Survival!
All Reviews:
Very Positive (87) - 96% of the 87 user reviews for this game are positive.
Release Date:
Apr 29, 2021

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“I intend for this to be a long term project that grows over time. Early Access is the best format for this as it enables me to be in a constant feedback loop with the players of the game and expanding it in directions both they and I find most interesting.”

Approximately how long will this game be in Early Access?

“This is a long term project but I estimate to come out of Early Access roughly within the next two years.”

How is the full version planned to differ from the Early Access version?

“I want to take the simulation as deep as I can. Barricading, Military intervention, Extraction / Evacuation, Advanced police tactics. There is a long list and I want it all to be customizable by the player.”

What is the current state of the Early Access version?

“I've gotten the visuals mostly where I want them so now I can spend some more time fleshing out the AI systems without worrying that the game isn't visually ready. The player is capable of setting up simulations and interacting with them and there are tons of planned features.”

Will the game be priced differently during and after Early Access?

“I want to reward my Early Access supporters with the lowest price. As new content is added to the game the price will slowly rise towards it's final value. The earlier you support the project, the better deal you get!”

How are you planning on involving the Community in your development process?

“Part of the reason I planned to make this game Early Access is so that I can get it into the hands of players and see how they react to it. This is a long term project that I hope will grow over time and I'd love to have you on the journey with me. I will be checking the Steam forums regularly to see what features users desire the most for future versions, how the community reacts to updates, or possible new ideas I haven't thought of!”
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About This Game


DeadOS is an early access zombie outbreak simulator that focuses on city-wide outbreak scenarios where you have full access to customization of the experience from beginning to end, made by indie game developer and randomizer creator Benn Powell.

Build your own zombie apocalypse! Do you want slow, shambling hordes that consume the living, or a fast, rapidly spreading infection that doesn't allow time to react?


  • Up to 25,000 humans simulated in a city area of up to 900 city blocks.
  • Nearly every element of the simulation is adjustable. Zombie speed. Human Accuracy. Ammunition.
  • Take remote control of any individual during any point of the simulation, whether they are survivor or infected.
  • Create your own city blocks to personalize the city
  • Adjustable simulation speed to optimal performance for your machine.
  • Retro visual style

Mature Content Description

The developers describe the content like this:

Blood, Violence, Zombies.

System Requirements

    • Requires a 64-bit processor and operating system
    • OS *: Windows 7/8/10
    • Processor: Quad-core Intel or AMD processor, 2.5 GHz or faster.
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce 470 GTX or AMD Radeon 6870 HD series card or higher.
    • DirectX: Version 11
    • Storage: 1 GB available space
    • Sound Card: Yes.
    • Additional Notes: Game runs on Unreal Engine 4.
    • Requires a 64-bit processor and operating system
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.

What Curators Say

3 Curators have reviewed this product. Click here to see them.

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