Get Xbox Live games at up to 80 percent off this week

Xbox Live users can snag a handful of titles at up to 80 percent off over the next week, according to posts on the Major Nelson blog.

The Xbox Live Ultimate Games Sale kicked off yesterday, offering 13 Xbox Live Arcade and Games of Demand titles at a discount until Feb. 25:

• Alan Wake's American Nightmare (Arcade), 70 percent off
• Asura's Wrath (Games on Demand), 81 percent off
• Batman: Arkham City (Games on Demand), 75 percent off
• Dirt 3 (Games on Demand), 80 percent off
• Driver San Francisco (Games on Demand), 67 percent off
• Dungeons and Dragons Daggerdale (Arcade), 80 percent off
• Dust: An Elysian Tail (Arcade), 80 percent off
• Fable 3 (Games on Demand), 50 percent off
• Guardians of Middle Earth (Arcade), 93 percent off
• Mass Effect (Games on Demand), 75 percent off
• Motocross Madness (Arcade), 80 percent off
• Portal 2 (Games on Demand), 67 percent off
• Rock Band Blitz (Arcade), 73 percent off

Today, Major Nelson announced another round of titles available at a discount until Feb. 24:

• Angry Birds: Star Wars (Games on Demand), 50 percent off
• Dragon Ball Z Ultimate Tenkaichi (Games on Demand), 67 percent off
• Family Guy: Back To The Multiverse (Games on Demand), 75 percent off
• NASCAR Inside Line (Games on Demand), 75 percent off
• Persona 4 Arena (Games on Demand), 67 percent off
• Ridge Racer Unbounded and four of its DLC packs (Games on Demand), each 75 percent off
• Ryse: Son of Rome on Xbox One, 33 percent off