Nuclear War Simulator

Nuclear War Simulator is a simulation and visualization of large-scale nuclear conflicts, with a focus on their humanitarian consequences. You design weapons and delivery systems, place forces on a map and run attack plans to examine how a conflict might unfold and estimate its effects on people and military targets.

Create conflict scenarios

You can build scenarios between major powers involving thousands of warheads. Assign warheads individually or use adjustable AI to speed up targeting, or simulate a conflict interactively with a few clicks on the map. The game includes 22+ editable scenarios, and you can download scenarios made by others or upload your own.

Model weapon effects

A high-resolution population-density grid is used to calculate and visualize the effects of blast, heat, fires and radiation for each population cell, including estimated fatalities, radiation zones and casualties. Military-target destruction is modeled using a weapon’s CEP, target hardness and cratering. You can also place yourself, family and friends in the simulation to estimate expected injuries and chances of survival.

The simulation calculates the amount of fuel burned and soot produced, then uses a simplified model to estimate nuclear-winter effects. It also includes individual civilians who move across the map and take shelter.

Design and place forces

You can design warheads and place them on missiles, in silos, or aboard aircraft, TELs and submarines. Place forces on the map by clicking, or import real-world locations from KMZ files. If you know the uranium and plutonium needed for a warhead, you can estimate how many warheads a country could build from its current stockpiles.

The simulation includes realistic delivery systems and the full known, up-to-date arsenals of major world powers. Integrated early-warning and missile-defence systems are also available.

Modding and data exchange

Basic modding supports unit textures, loading screens and background music. You can share unit blueprints and scenarios, with in-game uploads and downloads that synchronize instantly. Import a list of detonations from another tool as a CSV file to calculate humanitarian effects, or export detonations and burnt-soot data for use in other tools, including detailed climate simulations.