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 Craft of Gods, BOH, Darkness Within 2: The Dark Lineage, Mass Effect 2, Demigod, Sins of a Solar Empire, Spore, Dark Fall: Lost Souls, Battlefield 2 Complete Collection, Supreme Commander Gold, while also dropping the price on Crazy Machines, all Europa Universalis titles, Rise of the Triad, Adam's Venture, MinerWars 2081 Pre-Alpha, and Storm Over the Pacific.