Nuclear war simulator is a realistic simulation and visualization tool for nuclear conflicts with a focus on humanitarian consequences. It allows the creation of detailed scenarios to analyze conflict timing, physical effects and humanitarian impact.

What is Nuclear War Simulator: Professional Edition

Nuclear war simulator is an interactive real-time sandbox simulation for nuclear conflicts of different scales. At the core of the simulation is a high-resolution population density map allowing us to calculate the effects of nuclear detonations on civilians. The simulation is using models for overpressure, thermal radiation, fires, prompt ionizing radiation and fallout to estimate fatality rates among civilians, effects on individual people and destruction of military and civilian objects (powerplants, hospitals, airports, etc.).

A graphical user interface can be used to design warheads, place them on delivery systems and then place those delivery systems on the map. Detailed attack plans can be created by assigning each warhead manually or with the help of an AI.

The simulation calculates realistic trajectories for ballistic missiles making it possible to analyze the timing of a conflict and potential response times.

The simulation includes a realistically shaded scenic map and an open-street-maps-based high-resolution tiled map. Movements of delivery systems, physical effects and other data can be visualized to create videos and images for educational materials.


Matrix Games is the leading provider of COTS simulation for military professionals.


Add new equipment or modify the capabilities of any item in a database from WWII to the modern era


Use wargames to study the outcome of both tactical and operational engagements

Concept Development

Study the effects of planning and equipment in 1 or 10X scenario runs


Train Commanders and Staff in all-domain wargames focused on planning and decision making


In-depth planning for fuel and munition consumption and resource allocation

Leverage the Future

Train your AI/ML tools in an all-domain scenario; leverage Big Data to uncover hidden connections

Software information


Minimum Requirements

  • OS: Windows Vista / 7 / 8 / 10
  • 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 Requirements

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


Ivan Stepanov


Setup large conflict scenarios with hundreds of units and thousands of warheads. You can replay the scenarios, considering effects like first strike, second strike, and estimate the humanitarian impact. Attack plans can be created manually by assigning each warhead to a target with a specified detonation altitude and yield option. Alternatively, an AI is available to quickly distribute a large number of warheads on targets. Ballistic missiles are moving on realistic elliptical trajectories including an acceleration phase. The simulation can run real-time, it can be paused or accelerated up to 1000 times. An early-warning system can be set up using radar and satellites (GEO and HEO). Models are available for a large number of effects of nuclear weapons: overpressure, thermal radiation, fires, prompt ionizing radiation, fallout, cratering, climatic effects. Two fallout models based on detailed weather data are available: WSEG-10 and HYSPLIT. WSEG-10 is a fast but simple model that can be used in real-time for large conflict scenarios. HYSPLIT is a very detailed but CPU-intensive particle dispersion model.
The simulation includes a high-resolution population density grid to estimate fatalities. Thousands of civilian objects are imported from real databases: powerplants (sorted by type and capacity), hospitals, ports, airports, refineries, oil storage facilities. The destroyed and remaining capacity are calculated for each country after a conflict. Individual people can be placed on the map and detailed analysis of physical effects and expected injuries can be estimated for each individual. Warheads can be designed considering yield, fission fraction and multiple dial-a-yield options. Warheads can be attached to ballistic missiles, cruise missiles and gravity bombs. Missiles can be placed in silos, on aircraft, TELs, submarines and surface ships. Objects can be placed on the map manually or using real-world locations by importing kmz files.


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