Major Nelson has revealed on his official blog some of the special deals and offerings coming out for Xbox Live this week.
On the top of the list is Quantum Conundrum (July 11, 1200 MSP), an awesome platform puzzler inspired by Portal. Releasing only two days later, Dungeon Fighter Live (July 13, 800 MSP), a condensed version of the extremely popular online side-scrolling beat-'em-up Dungeon Fighter Online. Definitely look to this game to be as awesome as Castle Crashers. A week later comes the much anticipated Tony Hawk's Pro Skater HD (July 18, 1200 MSP).
The deal this week is a Bethesda DLC blowout sale. All downloadable content for The Elder Scrolls IV: Oblivion (Shivering Isles, Knights of the Nine) and Fallout 3 will be 50% off from today to July 16th.
You can see more offers and specials at his official blog.