October 2, 2006 - Good - [DEFCON's] failings of scope are easily forgiven at the impressively well-judged price Introversion has chosen.

April 13, 2007 - Good - If you want to try something different, relive a style from yesteryear, or laugh manically while crushing enemies under your nuclear strong arm, then Defcon is a must play.

November 2, 2006 - Good - It's a challenging strategy game that doesn't require the player to memorize a lot of complex controls, proving that maybe the end of the world isn't such a horrible thing after all.

October 10, 2006 - Good - Even though the main source of inspiration for Defcon is more than 20 years old, and Cold War paranoia is a thing of the past, the game feels disturbingly relevant, and much like developer Introversion's past work, Uplink: Hacker Elite and Darwinia, there's truly nothing else quite like it today.

October 20, 2006 - Good - DEFCON's a great example of how a few simple concepts can be combined to make something that's incredibly interesting and pleasantly complicated.