Thanks to some sneaky trading, I snagged a bunch of stuff I needed.
First off, I went to Nuuvem and got Castlevania: Lords of Shadow and Bioshock Infinite for Steam for $13 in a special two for 30 Reals sale they were having. Yay regional pricing!
Then I got the Sniper Elite V2 collection at Gamersgate for $9.60. Out of that, I only needed the DLC, so I traded away the main game to someone on Steam for Papers, Please and Rise of the Triad.
And I traded those two extra games into a Bioshock Infinite Season Pass.
I'm not planning on getting anything else soon, I have way too much stuff now.