Stardock's digital distribution platform, Impulse, is having its President’s Day weekend sale, starting with a sale on THQ Ultimate Bundle (17 titles for $99.99), knocking 50% off Rulers of Nations, Metal Brigade Tactics, Tropico 3, Command and Conquer 4, Democracy 2, Tom Clancy's EndWar, while also dropping the price on Dawn of Magic 2, The Political Machine 2008, Air Aces - Pacific, Storm Over the Pacific, and MinerWars 2081 Pre-Alpha.