Stardock's digital distribution platform, Impulse, is having its weekend sale, starting with a sale on THQ Ultimate Bundle (17 titles for $99.99), knocking 50% off Armada 2526, Hegemony - Philip of Macedon, Air Aces - Pacific, World War 2 - Time of Wrath, FIFA Soccer 10, Hard Truck Apocalypse, while also dropping the price on The Guild 2 Collection, and Gratuitous Space Battles Collector's Edition.