Play Defcon 5 online

 
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Use keys CTRL + F11 (to run the game slower) and CTRL + F12 (to run it faster)

Defcon 5 is old DOS game developed by Millennium Interactive and published by GT Interactive Software in 1995. Here you can play Defcon 5 as online game right in your browser. If you have any issues running this game, or you just want to talk about it, let us know in the game discussion forum.

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Please, take into consideration, that the whole operating system (DOS) is emulating in your browser and this process may take up to 100 % of your cpu while running. Playing experience can be poor (based on your browser or computer). Download Defcon 5 and launch it with DOSBox to have the best playing experience.

 

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