Electronic Arts has announced that they're now giving away the original Command & Conquer: Red Alert as a free download in celebration of the 13th anniversary of the series (and a reminder that Red Alert 3 is totally coming out soon).

While the game is free, the actual process of playing it isn't without a little complication. You can head over to EA's official page to download both the Allies and Soviets discs (each disc contained the single-player campaign for its respective faction), but the files are actual ISO images of the CDs themselves. That means that in order to play them, you'll either need to burn the ISO images onto a blank disc, or use a Virtual CD program to load them. The game will run on Windows XP/98/Me/95, but it's not "officially" compatible with Windows Vista (although there are certainly ways around that, so don't let that stop you, Vista users.).