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Offline Asid

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Nuclear War Simulator
« on: December 07, 2020, 04:45:41 AM »


A nuclear conflict simulation and visualisation tool


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Nuclear War Simulator - Launch Trailer





About

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.

Some more details can be found in the screenshots and technical details sections. Follow me on twitter to stay updated.


Work in progress

This simulation is not yet finished. Some aspects are not very accurate or missing entirely: ballistic missiles flight times are only approximate, nuclear winter model is not complete. Some models may have to be replaced completely in the future. Please let me know if you detect some severe inaccuracies. If you think you can use this simulation in one of your projects but some calculation or visualization is missing please contact me and I will try to implement it.

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Offline Asid

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Re: Nuclear War Simulator
« Reply #1 on: December 07, 2020, 04:48:39 AM »
Cinematic compilation - Nuclear War Simulator





A compilation of cinematic scenes recorded with NWS displaying a potential conflict between the United States of America and Russia.

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Offline Asid

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Re: Nuclear War Simulator
« Reply #2 on: December 07, 2020, 04:49:56 AM »
Ballistic missiles modeling




This video shows the new physically correct ballistic missile flight. This new feature should result in realistic flight times and later in realistic detection times by radar.

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Offline MODy

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Re: Nuclear War Simulator
« Reply #3 on: December 09, 2020, 06:15:13 PM »
Hi everyone! Thanks for introducing me to this forum.
I am the developer of the Nuclear War Simulator, here to answer questions and participate in the discussion.
If you have any questions or suggestions, let me know and I will see what I can do.
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Offline Asid

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Re: Nuclear War Simulator
« Reply #4 on: December 25, 2020, 02:51:06 AM »
Build 211 - Civilian infrastructure and fallout plume visualization
24 Dec 2020
by Ivan Stepanov (@ivnstepanov)
=

This update adds objects of civilian infrastructure based on real-word databases, introduces a visualization of the fallout plumes and some optimizations.

Objects of civilian infrastructure

- New Feature: a number of objects of civilian infrastructure are added.

Powerplants:



Refineries:



Harbors:



Airports:



Hospitals:



The objects can be destroyed while the settings for each target type hardness can be set in a separate menu.



Refineries and oil storage facilities will burn and produce soot when destroyed, contributing to the effects of nuclear winter.



And here is a video explaining these features:




Fallout visualization

- New Feature: fallout plumes are visualized using parts of the WSEG-10 fallout model. The visualized plume covers approximately the same area as the area exposed to radiation and can be used to estimate the time of arrival at a specific location.




You can find the documentation of the fallout codes here:
- Optimisation: the destruction of units by the blast
- Optimisation: rolling the globe is no longer choppy

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Offline MODy

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Re: Nuclear War Simulator
« Reply #5 on: January 20, 2021, 08:12:05 PM »
New Update: Build 214 - Visualization settings and burning cities
This update improves the visualization of burning cities and allows saving most visualization settings.

Burning cities
- New Feature: burning cities are animated, the size of the displayed burning area is displaying the area affected by 10 cal/cm^2
- New Feature: smoke from burning cities is moving with the speed of the wind
- New Feature: smoke from burning cities scales with the amount of burning fuel



Visualization settings
- New Feature: graphics settings are saved

- New Feature: city lights intensity can be adjusted

- New Feature: minimum displayed harbor size can be set and saved

- Bug Fix: temperature went to zero if soot amount went over 150 Tg

As always, feel free to ask me any questions or leave your suggestions!
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Offline Asid

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Re: Nuclear War Simulator
« Reply #6 on: January 20, 2021, 11:28:41 PM »
Thanks for the update MODy  :thumbsup
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Offline Asid

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Re: Nuclear War Simulator
« Reply #7 on: June 28, 2021, 11:49:00 PM »
Matrix Games announced Nuclear War Simulator
10 June 2021



Matrix Games announces it has a signed a deal with Ivan Stepanov to publish its Nuclear War Simulator product. This collaboration will allow Matrix Games to further develop its roster of accurate modern warfare simulation software for commercial and professional use.
Alongside the development of a stand-alone version of the software for professional purposes, the deal's short-term goals are to optimize it and integrate its capabilities with Command Professional Edition.

About Ivan Stepanov
Ivan grew up in the city of Semipalatinsk, just miles away from the nuclear site where the Soviet Union tested most of their weapons.
He started reading and collecting information about nuclear weapons very early, only to find out that there was no digital simulation dealing with the subject in great detail.
He started working on the Nuclear War Simulator project to fill that gap and further enhanced the software's capabilities in many years of hard work and analysis.

The Simulation
Nuclear war simulator is a detailed realistic simulation and visualization of large-scale nuclear conflicts with a focus on humanitarian consequences; in this simulation, 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.

Features:
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.

Models from the Cold War are used to calculate the physical effects of nuclear explosions on military targets and on the population using a high-resolution population density grid.

Design warheads, missiles, bombs, silos, bombers, mobile carriers and position them on the map to recreate past, present, or future arsenals.

Create attack plans aiming at military targets or population.

Scenarios can be saved and you can easily download scenarios created by other people.

Modify and share scenarios, unit blueprints, icon textures, etc.

Product Page




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Offline Asid

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Re: Nuclear War Simulator
« Reply #8 on: September 13, 2022, 02:31:31 AM »
Nuclear War Simulator - #1 Dev Log
Tue, September 6, 2022



Nuclear War Simulator - #1 Dev Log - Scenarios and Mods


Scenarios

The Nuclear War Simulator includes a number of scenarios that are very easy to use. If you are new to NWS these scenarios will help you to get started quickly and get an overview of different functions and possibilities. If you are experienced with NWS, you can use these as a basis to create your own scenarios. Some scenarios are tightly scripted, while others are meant to be used for experimentation.
Most scenarios can be used as a sandbox. For example, one scenario contains nuclear forces of the US and Russia in addition to the military bases of several European nations. One initial attack plan is defined and, if executed, will trigger an uncontrolled escalation by the AI. You are however free to trigger the escalation by creating your own attack plans or using the single detonation tool. You can also disable the AI and simply use the objects to create your own scenario.
Some scenarios have no AI and instead include a tightly scripted series of attack plans that can be executed one by one or in a timed sequence to tell a story.



Other scenarios are not realistic but are designed to explain different aspects of nuclear weapons technology and strategies. Such aspects include
– Mutually assured destruction
– Early warning satellites and radar
– Launch on warning
– False alarms
– Missile defense
– Different types of delivery systems
– etc.



There are other scenarios where the user has no control over the events but instead replays a prerecorded sequence of launches and detonations. Such a scenario can be used to tell a very specific story or to share the results of the detailed HYSPLIT fallout calculation. HYSPLIT can take multiple hours of calculation on large scenarios so this is a convenient way to save and share the results. Currently, NWS includes the results of all 12 scenarios of the OPEN RISOP database by David Teter (https://github.com/davidteter/OPEN-RISOP).




Mod types

A mods browser is integrated into NWS and allows easy download of different kinds of mods. Currently, there are 5 types of mods:
– Scenarios
– Blueprints (predefined warheads, missiles and objects)
– Object icons
– Loading screens
– Background music
Other types of mods, like predefined object groups, will probably be added in the future. A tool to upload user-made scenarios is also integrated into the simulation.



Keep in touch with the community of NWS, use the forum to discuss your discoveries with other users, check out the site for FaQ and any information, and join the Discord server where the Dev regularly updates the users about the development progress and discusses requests and changes.

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Offline Asid

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Re: Nuclear War Simulator
« Reply #9 on: November 29, 2022, 11:02:22 PM »
Nuclear War Simulator - Dev Log #2
Tue Sep 27, 2022



Objects database
Database of weapons and delivery systems


The Nuclear War Simulator allows you to create detailed scenarios with full control over every detail of the objects deployed on the map. You can design warheads place them on missiles and mount them on delivery systems like aircraft or submarines. However, you can also skip all these steps and create a scenario quickly by using predefined objects.

NWS includes a database of almost all currently deployed nuclear weapons and delivery systems known to the public.



Some interesting historical or experimental weapons are also included. You can, for example, take the Tsar Bomba in its original 100 MT configuration and mount 10 of them on an ICBM.



Warheads can be placed on ballistic missiles, cruise missiles or gravity bombs. These missiles are then part of various static or moving objects like missile silos or submarines. Every warhead, missile, nuclear-capable aircraft, TEL and submarine that can be found in modern nuclear weapons arsenals can be instantly used in NWS.



The list of historical weapons will be growing in the future and if you can’t find something you can easily design it yourself. Unconventional delivery systems like hypersonic weapons and torpedoes will probably be added in the future.


Database of object locations
Doing the research on nuclear weapons arsenals and then placing each individual object on the map can take a lot of time. In order to make scenario creation easier NWS already includes a large number of object groups in their correct locations. For example, it is possible to place the complete US nuclear weapons arsenal with just two clicks. Placing subsets of the arsenal, like a specific missile silo field or all tactical nuclear weapons in Europe, is also possible.



Locations of military bases are also provided. They do not play an active role in a conflict but serve as targets for nuclear weapons in order to create a realistic distribution of detonation locations.



Such groups of nuclear weapons and military bases are predefined for all nuclear weapons states and for some European countries.



You can always place the objects yourself and create such object groups if something is not available yet. There are multiple ways to do it in the Nuclear War Simulator:
– clicking on the map
– entering the latitude and longitude coordinates
– entering a Wikipedia link (coordinates will be automatically extracted from the internet)
– importing objects from kmz files
– using map images as an overlay to place objects



The level of detail of this database is not equal for all countries and weapon types. While there is a lot of information on the strategic arsenals of Russia and the United States due to arms control treaties, there is much less information on the exact numbers and characteristics of tactical nuclear weapons and arsenals of other countries.

Keep in touch with the community of NWS, use the Forum https://www.matrixgames.com/forums/posting.php?mode=edit&f=11942
to discuss your discoveries with other users, check out the site https://www.matrixgames.com/game/nuclear-war-simulator
for FaQ and any information, and join the Discord server https://discord.gg/f9yc7c6bJs
where the Dev regularly updates the users about the development progress and discusses requests and changes.

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Offline Asid

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Re: Nuclear War Simulator
« Reply #10 on: November 29, 2022, 11:05:14 PM »
Nuclear War Simulator - #3 Dev Log
Tue Oct 25, 2022



AI
The Nuclear War Simulator can be controlled entirely by the user and also includes an AI that can control a country to launch nuclear weapons as a response to your actions. Each country has a political leadership figure with an AI that can be enabled and adjusted to respond to detonations on its territory and to missiles detected by early-warning radar and satellites. If several countries are controlled by the AI it will lead to an escalating series of counterattacks that will most likely end in an all-out nuclear war. This can be used to create unpredictable scenarios triggered by minimal input from the user.

Response to attack
The most basic AI response is retaliation to being attacked and to detonations that were detected on its territory. The AI counts the detonations and registers which countries were attacking it.



The AI then launches a proportional counter-attack.



It is also possible to set the balance of military to civilian targets for these attacks and to define a threshold for a disproportional all-out response.

Launch on warning
The AI can launch a response triggered by early-warning satellites or radar, even before the warheads land on its territory to avoid a disarming attack.



You can adjust the performance of the early-warning systems (reaction time, reliability, etc) and the proportionality of the response. It is possible to set a threshold on the initial attack for a launch-on-warning response. This way, the AI may decide to ride out a small attack and wait for confirmed detonations on the ground.



The early-warning response AI can be used to demonstrate some of the modern and historical nuclear response policies. There is a scenario provided with the simulation where a false alarm is simulated triggering an accidental nuclear war.

Keep in touch with the community of NWS, use the Forum to discuss your discoveries with other users and join the Discord server https://discord.gg/f9yc7c6bJs where the Dev regularly updates the users about the development progress and discusses requests and changes.

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Offline Asid

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Re: Nuclear War Simulator
« Reply #11 on: November 30, 2022, 12:09:48 AM »
Nuclear War Simulator - #4 Dev Log



Delivery systems
The Nuclear War Simulator includes a number of modern nuclear weapons delivery systems. It simulates the most important characteristics of these delivery systems like the range and timing of the impacts. In NWS you can mount ballistic missiles, cruise missiles and gravity bombs on submarines, TELs, silos and on aircraft enabling the simulation of the most relevant modern delivery systems.

Ballistic missiles
Ballistic missiles are one of the most widely used nuclear weapons delivery systems. After launch, they accelerate leaving the atmosphere and then move through space on a ballistic trajectory. Intercontinental ballistic missiles (ICBMs) often carry not one but multiple warheads that can be targeted independently (MIRVs). The acceleration phase and the movement on a ballistical trajectory are reproduced in NWS making realistic time-of-impact and radar detection estimations possible. Individual MIRVs can be distributed inside of an elliptical area on the ground approximating the targeting limitations of real systems.



ICBMs are often stored and launched from fixed silos underground. In the United States, the Minuteman III missiles are operating in squadrons of 50 missiles and 5 launch control centers. If the missiles receive the launch command from two control centers they will launch instantly. However, if only one control center survived the missiles will launch with a delay (a safety measure). This behavior is reproduced in NWS and can be adjusted.



Silo-based ICBMs are often hardened but remain vulnerable because their position is known and they can be destroyed by blast or they can be buried by crater ejecta.

Transporter erector launchers (TELs)
In order to improve survivability, many countries resort to mounting the missiles on mobile transporter-erector-launchers (TELs). The TELs can be parked at their base, they can patrol an area and they can be dispersed in crisis. This behavior is reproduced in NWS.



Submarines
Another option is to transport the missiles on a submarine. Similar to TELs, the submarines can patrol an area and be dispersed in crisis. They usually carry multiple ballistic missiles with multiple warheads each.



Air-launched ballistic missiles (ALBMs)
Some ballistic missiles can be delivered by air to extend their range. One such missile is the Kinzhal recently deployed by Russia. The missile is carried by aircraft through the atmosphere (blue line) and then follows a ballistic trajectory after release (white line).



Air-launched cruise missiles (ALCMs)
Russian and US strategic bombers can carry a number of air-launched cruise missiles. The missiles are transported by the aircraft (blue line) and then released before entering hostile air space and then travel autonomously through the atmosphere (yellow lines).



Gravity bombs
Tactical nuclear weapons can be delivered as gravity bombs and dropped from aircraft. Because the gravity bombs have no propulsion themself, they must be carried to each target by aircraft (blue line).



Keep in touch with the community of NWS, use the forum to discuss your discoveries with other users, check out the site for FaQ and any information, and join the Discord server where the Dev regularly updates the users about the development progress and discusses requests and changes.

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Offline Asid

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Re: Nuclear War Simulator
« Reply #12 on: January 23, 2023, 12:12:16 AM »
Nuclear War Simulator - Dev Log #5
Fri Jan 20, 2023




Individual humans
Simulating the effects of nuclear weapons on individual humans
The nuclear war simulator can be used to simulate the effects of nuclear weapons not only on the population density but also on individual humans. You can place individuals on the map, move them on foot or in a vehicle and let them take different kinds of shelter. Each individual will record the physical effects of nuclear weapons and estimate the injuries leading to incapacitation and death. This feature can be used to explain and evaluate different survival strategies during a nuclear attack, like shelter-in-place or self-evacuation.



The injuries received by an individual are displayed as small icons and as detailed text describing the injuries. Depending on the injuries the individual will be incapacitated and die. Incapacitation from radiation can be delayed by hours or days depending on the dose received. The total received dose to the body is displayed together with the dose rate received in the shelter and in the open.

The effects of nuclear weapons experienced by an individual are logged with a time stamp. As can be seen in the example below, the time of the blast received is delayed by multiple seconds because the blast wave is traveling much slower than light.



An individual can be selected on the map or from the list. There is an option to save and load individuals with a scenario or to save them permanently so they are loaded with each scenario. The last option is ideal if you want to place yourself, your family, and your friends into the simulation.

Fallout
The time-resolved radiation dose rate from fallout is recorded and can be displayed. In the example below, you can see how radiation from 3 different clouds arrives at the position of the selected individual and then decays.



Shelter
The individuals can take shelter and have some protection from the different effects of nuclear weapons. If the person is in a vehicle or in a building there is some protection from the effects like overpressure, thermal radiation, and fallout. Different types of shelters offer different protection factors from radiation (the large number displayed on the shelter). If the person is outside or if there are windows, the person has a chance to be exposed to thermal radiation or to injuries from flying glass and debris. Buildings have a chance to collapse from overpressure.



Movement
Individuals can move on foot or in a vehicle. The waypoints can be queued to create a path following the roads. There is a setting to define the movement speed and the radiation protection factor offered by a vehicle.

When moving, the radiation from the fallout will be recorded in a time-resolved fashion. This allows the explanation and analysis of different survival strategies. The typical recommendation is to hide in a shelter for multiple hours or days and then evacuate. Trying to self-evacuate right away may expose the individual to lethal doses of radiation.



Follow us on our Discord server https://discord.gg/kfhFxNp6uF and on Steam https://store.steampowered.com/app/1603940/Nuclear_War_Simulator/


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Offline Asid

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Re: Nuclear War Simulator
« Reply #13 on: January 31, 2023, 07:46:01 PM »
Nuclear War Simulator - Out 02/02/2023
Thu Jan 26, 2023

"A nuclear war cannot be won and must never be fought." - Geneva 1985

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 questions: what will happen if Russia and the United States or India and Pakistan use their arsenals? What will happen to the population of a country in a nuclear war? What will happen to me and my family?

You can design warheads, missiles, and carriers, place them on the map and execute attack plans to tell a credible story about how nuclear conflicts play out and what the consequences are. 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. Individual humans can be placed on the map, travel, and take shelter to analyze the effects and estimate injuries and survival probability.

Nuclear War Simulator will be out next Thursday, February 2nd.

Wishlist it now: http://bit.ly/3DglUse

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