If you've missed the zillion chances to grab Deus Ex on sale, Steam is offering another opportunity with 75% off the entire franchise, including Human Revolution and its downloadable content. Things are relatively quiet elsewhere as GameStop continues to offer 50-75% off Assassin's Creed...

Steam has slashed up to 50% off 2K Games' catalog, with a special daily deal on Mafia and Mafia II (75% off). The weekend-long promotion ends Sunday with extra savings on a new game every day. There's not a whole lot happening elsewhere, though Deus Ex: Human Revolution...

It's a fine weekend for thrifty gamers to catch up on some of 2011's greatest hits, with 66 to 75% off Serious Sam 3: BFE, Red Faction: Armageddon, Deux Ex: Human Revolution, Saints Row: The Third, and The Witcher 2: Assassins of Kings. Human Revolution is as cheap as we've seen it...

If you've been hesitant to invest in the latest version of Modern Warfare, Steam removes cash from the equation with a free multiplayer weekend (along with a 33% discount, if you enjoy the ride). Valve's distribution house also cuts 75% off 2009's sequel to Return to Castle Wolfenstein...