Diner Dash is the first of two new releases on Xbox Live Arcade this week. Ditch your desk job and serve up some grub! Help Flo™ grow her fledgling diner into a five-star restaurant in this game of skill, speed and savvy. Diner Dash costs 800 
and more information and the demo and full versions can be found here.
The second release is the Puzzle Quest style game Gyromancer. A fusion of puzzle and RPG gaming. You are Rivel, a powerful mage who leads fearsome beasts into battle as he explores the depths of Aldemona Wood. Master a deep–and deeply addictive–battle system. Twelve stages of play against dozens of unique foes. Gyromancer costs 1200 and more information and the demo and full versions can be found here.
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Don’t for about Peggle Nights DLC for Peggle today. There goes my next two weeks.