Groundfall
Nuclear Blast Simulator
Free · In-App Purchases
Groundfall uses declassified physics to visualize nuclear blast effects, fallout, and real-world consequences for education and preparedness.
Groundfall is an educational nuclear blast simulator built on declassified physics models.
Place a detonation on a map and visualize blast zones, thermal radiation, fallout patterns, and estimated human impact. Groundfall is designed to help users understand the real-world consequences of nuclear weapons through clear simulations, historical context, and preparedness information.
WHAT YOU CAN DO
- Simulate nuclear weapon effects on any city or location
- Compare historical and modern weapon yields
- View blast, thermal, radiation, and fallout zones
- Explore real-world conflict scenarios
- Analyze fallout direction using wind data
- Review casualty and damage estimates
- Learn about nuclear physics, arsenals, history, and preparedness
- Save and export simulation results
FREE STARTER MODE
Groundfall is free to download and includes limited access so you can test the core simulator before upgrading.
GROUNDFALL FULL ACCESS
Unlock the complete app with a one-time lifetime license. No subscription.
Full Access includes unlimited simulations, all weapons, conflict scenarios, advanced fallout tools, export features, live nuclear news, preparedness tools, and future premium features.
EDUCATIONAL PURPOSE
Groundfall is not a game and does not promote violence. It is an educational tool for understanding the destructive effects of nuclear weapons and the importance of prevention, preparedness, and informed public awareness.
PRIVACY
Groundfall does not require an account. Simulations are processed on device where possible, and the app is designed to minimize data collection.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
This update introduces the new free starter experience and Groundfall Full Access lifetime unlock.
- Try core blast simulations before upgrading
- Unlock all weapons, conflict scenarios, fallout tools, exports, feed, and preparedness sections with one lifetime license
- Improved upgrade flow and clearer free-tier limits
- RevenueCat purchase and restore support
- General stability and App Store submission updates
The developer, Kodjovi Mlapa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Kodjovi Mlapa
- Size
- 61.9 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Groundfall Full Access QAR 39.99
- Copyright
- © 2026 Okasablack Studios