Starting tomorrow, July 8, and running for one week only, you can save big on a handful of Xbox 360, Xbox One, and Xbox Live titles. They're calling it the "Ultimate Games Sale" and it includes both daily and week long sales.
July 8th One Day Sales (Xbox 360):
Fable Trilogy - 33%
King of Fighters XIII - 75%
Assassin’s Creed IV Black Flag - 38%
Zoo Tycoon - 50%
Halo: Spartan Assault - 66%
Teenage Mutant Ninja Turtles: Out of the Shadows - 66%

July Ultimate Games Sale (Xbox One):
Titanfall - 33%
Call of Duty: Ghosts Season Pass - 40%

July Ultimate Games Sale (Xbox 360):
Street Fighter X Tekken - 75%
The Elder Scrolls V: Skyrim - 67%
Dishonored - 67%
The Amazing Spider-Man 2 - 33%
Portal 2 - - 67%
Child of Eden - 67%
Silent Hill: HD - 67%
Pac Man Museum - 50%
BloodRayne Betrayal - 50%
Trials Evolution - 66%
Ducktales - 66%
Metal Gear Solid V: Ground Zeroes - 50%
The Witcher 2: Assassins of Kings - 67%
Castlevania Lords of Shadow 2 - 50%
Trials Fusion - 33%
Darksiders II - 75%
FIFA World Cup - 60%
Fallout 3 - 67%
Skate 2 - 75%
Devil May Cry 4 - 75%
Fight Night Champion - 75%
Deus Ex Human Revolution - 67%
MX vs ATV Reflex - 75%
Walking Dead 400 Days - 50%
Walking Dead Episode 5: No Time Left - 50%
Walking Dead Episode 4: Around Every Corner - 50%
Walking Dead Episode 3: Long Road Ahead - 50%
Walking Dead Episode 2: Starved For Help - 50%
Lara Croft and the Guardian of Light - 75%
Stuntman: Ignition - 67%
Gears of War 3 - 75%
Fallout New Vegas - 67%

Xbox 360 Games That Are On Sale, But Aren't Part of The Sale (have to be a Gold member):
Serious Sam 3 BFE: Jewel of the Nile - 66%
Serious Sam HD: The Second Encounter - 66%
Serious Sam HD: The First Encounter - 66%
Serious Sam Double D XXL - 66%
The Elder Scrolls V: Skyrim: Dragonborn - 67%
The Elder Scrolls V: Skyrim: Hearthfire - 67%
The Elder Scrolls V: Skyrim: Dawnguard - 67%
Halo 4 War Games Map Pass - 50%
WWE 2K14 Season Pass - 50%
Gears of War 3 Season Pass - 50%
Call of Duty: Ghosts Season Pass - 40%
Sensible World of Soccer - 66%
The Walking Dead Season 2 Season Pass - 50%