🛠️ DEFCON update history
Official announcements the developer posts on Steam—patches, new content, and events—sorted by date. Click a title to read the full post.
September 2026
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9/30Wed🎉 Events20th Anniversary Edition
Twenty years ago on this day, the 29th September 2006, Introversion Software released their third game DEFCON, and our lives were never the same again. What started as a 24 hour game jam (and love let…
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9/18Fri🛠️ Patch / update v1.70.31.70.3
Bug Fixes The renderer fallback now also covers the window being recreated, such as a resolution or renderer change, rather than only Defcon starting up. HDR for Metal (MacOS) and Vulkan (Windows, Lin…
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9/11Fri🛠️ Patch / update v1.70.2Update Notes for 1.70.2
1.70.2 Bug Fixes Fixed a crash on startup, and when pressing Apply in the Mods window, caused by mods whose gameoptions.txt leaves a blank line where a text settings default value belongs. Fixed a cra…
August 2026
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8/24Mon🛠️ Patch / updateDefcon Update in Beta Testing
Defcon Beta Update AnnouncementWe would like to announce that, thanks to the hard efforts of Defcon fan, volunteer and skilled developers, Keiron McPhee and Jasmin Brumme, we have a new build of Defco…
September 2024
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9/8Sun🛠️ Patch / update v10.13Update for Mac OS X 10.13 and later.
Make Mac OS X 10.13 build the default. Should resolve "damaged and can't be opened" issue on recent Mac OS X.
February 2017
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2/15Wed📢 AnnouncementEverybody Dies in VR
Introversion joins the VR party! After Prison Architect, our most successful game is DEFCON - a nuclear war strategy game inspired by the 80s movie War games (If you've not seen it, so yourself a favo…
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2/15Wed📢 AnnouncementEverybody Dies in VR
Introversion joins the VR party! After Prison Architect, our most successful game is DEFCON - a nuclear war strategy game inspired by the 80s movie War games (If you've not seen it, so yourself a favo…
Source: official Steam announcements (updated every 6–24 hours). Titles and summaries are copyright of the original developers.