Here are a few more tidbits for your bargain-hunting pleasure this week. Steam announces a sale on Universe at War: Earth Assault, offering Petroglyph's sci-fi RTS game for 75% off for the weekend. Also, there's a 75% off sale on Mount & Blade this weekend, with the indie RPG on Direct2Drive available for $7.50 and on Direct2Drive UK for £6.50. Finally, Mezmer Games announces a sale on Stalin vs. Martians, offering the arcade RTS game for $7.99 tomorrow and Sunday in honor of Russia's Victory Day, celebrating the May 9, 1945 conclusion of combat with Germany in World War II. In case you missed the post, a number of other weekend promotions were reported here yesterday.