Nuclear War Simulator

61KS
Released Feb 2, 2023by Bit MirrorMixed(69% of 270 Steam reviews)

Nuclear war simulator is a detailed realistic simulation and visualization of large-scale nuclear conflicts with a focus on humanitarian consequences. It lets you design conflict scenarios and estimate the consequences using a population density map and realistic weapons effects.

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Official stores

Official stores with direct support.

Steam
SteamOfficial
updated
€28.99
-35%€18.84
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Green Man Gaming
Green Man GamingOfficial
updated
€28.99
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GamersGate
GamersGateOfficial
updated
€28.99
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Keyshops

Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →

Eneba
EnebaKeyshop
updated
Lowest price
-47% vs Steam€15.33
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About Nuclear War Simulator

Info section:

Nuclear War Simulator is a detailed realistic simulation and visualization of large-scale nuclear conflicts with a focus on humanitarian consequences. There are currently over 13000 nuclear weapons on this planet of which over 9000 are in military stockpiles. This software should help you answer the question: what will happen if Russia and the United States or India and Pakistan use their arsenals?
You can design warheads, missiles and carries, place them on the map and execute attack plans to tell a credible story about how nuclear conflicts play out and what are the consequences. Using a high-resolution population density map and realistic weapons effects like blast, heat and radiation you can make an estimate of how many people will die in a conflict.

Nuclear conflict scenarios

You can design realistic large-scale scenarios between major powers with thousands of warheads. Scenarios can be created manually where you can assign each warhead individually or with the assistance of an AI for faster targeting. It is also possible to simulate whole conflicts with a few clicks on the map interactively. You can download scenarios created by other people and upload your scenarios to the mods.io server.

Realistic effects of nuclear weapons

The simulation includes a high-resolution population density grid. The effects of blast, heat, fires and radiation are calculated and visualized for each population cell to estimate fatalities (similar to Alex Wellerstein’s NUKEMAP). The destruction of military targets is simulated using a model considering the CEP of the weapon, target hardness and cratering.
You can place yourself, your family and friends into the simulation to estimate the expected injuries and survival probability. The amount of burnt fuel and produced soot are also calculated to estimate the effects of nuclear winter using a simplified model.

Design and placement of objects

Using an intuitive UI you can design warheads, place them on missiles and into silos, on aircraft, TELs and submarines.
You can then place the forces onto the map simply clicking on it or importing real-world locations from KMZ files.
If you know how much uranium and plutonium is needed for one warhead, you can estimate how many can be build from today’s stockpiles if a country wants to.

Modding and interfaces

The simulation supports some basic modding of unit textures, loading screens and background music. It is also possible to share unit blueprints and scenarios with others.
If you have simulated a conflict in another tool you can import the list of detonations as a simple CSV file to calculate the humanitarian effects. On the other hand, you can also export the list of detonations together with the burnt soot into other tools like detailed climate simulations.

Features


  • Detailed effects of nuclear weapons, accurate reports on affects/results (including but not limited to radiation zones, casualties and fires)
  • Realistic delivery systems, up-to-date full known arsenal of main world powers.
  • Sandbox to design weapon systems and build conflict scenarios.
  • Individual civilians moving on the map and taking shelter.
  • 22+ predefined editable scenarios. 
  • In-game mod upload and download. (instant synchronisation)
  • Adjustable AI.
  • Integrated early warning and Missile Defence systems.

Game details

Game details

Released
Developer
Publisher
Platforms
Steam Deck
Playable
Steam rating
Mixed (69%)

Age ratings

USK 16IGRS 18DEJUS 14STEAM_GERMANY 16

Game modes

Languages

Nuclear War Simulator price history

Lowest tracked price: €15.33 (Jul 21, 2026) · current best: €15.33 across 4 stores.

Nuclear War Simulator player count & reviews

69% positive reviews all-time · 4 peak players in the last 30 days.

Nuclear War Simulator — frequently asked questions

Where can I buy Nuclear War Simulator at the cheapest price?

Right now the cheapest offer for Nuclear War Simulator is €15.33 at Eneba. KingsPrice compares 4 offers from 4 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Nuclear War Simulator has ever been?

The lowest price KingsPrice has tracked for Nuclear War Simulator is €15.33 (recorded on Jul 21, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play Nuclear War Simulator?

Nuclear War Simulator peaked at 4 concurrent players on Steam in the last 30 days (highest on Jul 7, 2026). The player chart on this page updates daily.

Is it safe to buy a Nuclear War Simulator Steam key from a keyshop?

Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →

How can I get Nuclear War Simulator at a discount?

Create a free price alert on this page and KingsPrice will email you when Nuclear War Simulator drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • OS: Windows 10/11
  • Processor: 1.5 GHz
  • Memory: 8 GB RAM
  • Graphics: DirectX 11 or OpenGL 4.3 compatible graphics card with 3 GB of VRAM
  • Storage: 11 GB available space

Recommended

Recommended:
  • OS: Windows 10/11
  • Processor: quadcore or more
  • Memory: 16 GB RAM
  • Graphics: DirectX 11 compatible graphics card with 6 GB of VRAM
  • Storage: 11 GB available space

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