Gamestop's digital distribution platform, Impulse, is having its Independence Day Sale, starting with a sale on THQ Ultimate Bundle (17 titles for $99.99), knocking 50% off Two Worlds II, Warhammer 40,000: Dawn of War II Retribution, Metal Brigade Tactics, The Guild 2 Collection, Aveyond (and several of its sequels/expansions), while also dropping the price on Space Pirates and Zombies Pre-Order BETA, Atlantis Bundle, and MinerWars 2081 Pre-Alpha.