Downfall Survival Sim

Rebuild after the fallout

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

123 years after WW3 turned the USA into a wasteland, a handful of survivors look to you to rebuild. Downfall Survival Sim is a single-player survival-strategy game. Run a bunker settlement day by day: ration what little you have and decide who eats, who builds, and who walks out into the dust. RATION & BUILD • Balance food, water, power, medicine, scrap, and ammo • Upgrade your bunker modules — hydro farms, water reclaimers, barracks, workshops • Keep integrity and morale up, or watch the colony collapse RECRUIT SURVIVORS • Scouts, guards, medics, engineers, farmers, and traders — each with their own skills and rarities • Survivors level up on missions. Keep them healed and their morale high • Optional permadeath for the brave EXPLORE THE WASTELAND • Send squads across four irradiated regions • Scavenge ruins, rescue strangers, watch the radiation • Trade with passing caravans RESEARCH & DEFEND • Unlock the full tech tree • Hold the gate against mutant packs and raider bands • Fight the battles yourself or auto-resolve them Offline. No ads. No account. Your settlement One optional purchase (Survivor Mode) unlocks a developer God-Mode cheat console for players who want to sandbox. Built by XXI Online Games.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Bug fixes and improvements.

Version 1.5.5

The developer, Constantin Catalin Stroescu, 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:

    • Purchases

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Constantin Catalin Stroescu
Size
  • 37.8 MB
Category
  • Simulation
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
Copyright
  • © 2026 XXI Online Games
  • Developer Website
  • Privacy Policy

    • More by Constantin Catalin Stroescu