These maps completely change the look and feel of DEFCON, opening up entirely new gameplay scenarios, and bringing with them a whole new level of thermonuclear fun!
You can also check out the Introversion modding forum where fans have created a map editor with supporting tools to allow you to make entirely new maps, should you feel creatively inclined. Whilst you’re at it, be inspired by some of the best, and most imaginative mods so far at this Unofficial List, run by Zanzer.
Defcon MODs are packaged as ZIP files - they must be unzipped into your Defcon game directory, in a subfolder called "Mods". Once unzipped in the right place they will automatically show up in the Mod browser in-game (restart Defcon to reload the list)
If you are running Defcon through Steam, the update will be applied automatically. Install MODs by unzipping them here: C:\program files\Valve\Steam\SteamApps\common\Defcon\Mods\
If you are not running through Steam, visit our Patch Download page to get your download. Install MODs by unzipping them here: C:\program files\Defcon\Mods\
Here are some of the best MODs we've seen so far:

Up until now the Australians have evaded the thermonuclear debate, peacefully sitting out of the daily genocide. Not anymore thanks to this new map.

Ever fancied settling the score between England, Scotland and Wales? Now you can with thermonuclear fire.

Think outside the box; take your nuclear vendetta into the realms of outer-space and knock your opponents out of orbit.

The most surreal form of thermonuclear war yet; hack into each other’s cyber brains and blow them away!