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 Fantasy Wars, Cities XL 2011, SpellForce 2 Shadow Wars, Smugglers 4: Doomsday,  SpellForce 2: Dragon Storm, Spellforce Platinum, SPORE, while also dropping the price on Frontline: Fields of Thunder, Air Aces - Pacific, Storm Over the Pacific. MinerWars 2081 Pre-Alpha, Arsenal of Democracy - A Hearts of Iron Game, Black Mirror III - Final Fear, and Cargo! The Quest For Gravity.