Diplomacy has failed. Experience humanity's darkest moment in this Mutually-Assured-Destruction'm'up. All the nuclear powers of Earth duke it out in this Battle Royale to end them all. How long until your arsenal is in the air? What will become of your allies? Can you and your people survive to build a better world?


This game uses every letter of the keyboard. Each letter represents a nation. Hold SHIFT + (any letter) to fire on the ones with Capital Letters, or don't hold shift to fire on lower case letters. Blue cities are allies. Don't press your own letter.

Install instructions

Downloadable files are zipped, no install required. The game takes a few seconds to boot, so please be patient.

Windows release is tested and stable, so I recommend downloading it for optimal performance. I have not tried exporting for HTML5,Mac OSX or Linux before, please let me know how it runs for you.

As far as I can tell, the game won't scale in HTML5, so your desktop resolution must be set to 1920x1080 to play in browser. Click the button in the lower right corner of the game for fullscreen. If you don't have a widescreen monitor or can't display at that resolution, I recommend downloading the executable files, which scales fine.


Nuclear_Briefcase.zip 25 MB
Nuclear_Briefcase_Mac.zip 39 MB
Nuclear Briefcase_Linux.zip 26 MB

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