Microsoft's announcement of Age of Empires Online earlier this week made more than one RTS fan happy. Now Microsoft is celebrating the revival of its own RTS game franchise with a special sale at the Games For Windows web site. From now until Monday five RTS titles will have price cuts on the site. The games are downloaded via the Games For Windows Live client.

The games include Microsoft's own Age of Empires III: Complete Collection which has the last game in the series and its two expansion packs that were made by the now defunct Ensemble Studios. The game is now available for $19.99, a 50 percent price cut. The other games that are on sale have prices of $9.99 each and include Warhammer 40,000 Dawn of War, Dawn of War Dark Crusade, Supreme Commander and Supreme Commander: Forged Alliance.