shooter weekend on Steam for the weekend of 9/2/2011, with the entirety
of the Call of Duty series on special (excluding MW3 pre-purchases and
Black Ops DLCs) to celebrate the Call of Duty XP convention. Speaking of
Call of Duty: Black Ops, it's also free multiplayer weekend on the
game, so Black Ops Multiplayer is free (and the Black Ops title is 33%
off) so it certainly sounds like time to get your gaming on.
range from USD 7.49 (DLCs for Call of Duty: Modern Warfare 2) to USD 39.99 (Call of Duty: Black Ops). See the whole selection on Steam's Call of Duty page.
GameStop's Impulse Network has The Sims 3 and a variety of expansion packs for the Sims available on special for this weekend, if that is more your thing, and if you lean more towards RPGs, Fable III is on sale at gamesforwindows.com for one week only. And if all you want is some fun, the franchised Lego games (LEGO Star Wars, LEGO Indiana Jones, LEGO Harry Potter...) are on special at GamersGate from September 1st to the 5th inclusive.
So whether you have a holiday weekend or not, it sounds like a good time to be a gamer this weekend with all of these specials - you're bound to find something that you like!