Today sees two Xbox LIVE Arcade games receive DLC, but only one of these games adds further achievements to their total. Here is today's list:Defense Grid: The Awakening
• "Defense Grid: You Monster" - 400 MSP
(this has achievements)Portal’s GLaDOS invades the world of Defense Grid in this first full-story expansion to the award winning game. Eight new maps break all the rules, and 35 additional challenge missions provide 15+ hours of new gameplay. Purchase this new chapter in the story of Defense Grid now!Voltron: Defender of the Universe
• "Arena of Doom" - 240 MSPWelcome to the Arena of Doom! Destroy wave after wave of King Zarkon’s forces, surviving for as long as you can. Each wave of enemies increases in power, as does your score bonus for completing it. How high can you reach?Edit: Defense Grid: The Awakening
adds five achievements worth a total of 50G. Unfortunately, the achievements are not on Xbox.com yet. I would recommend waiting for the achievements to be added before playing the DLC. If you have already earned one or more of these achievements, they will not count towards your gamerscore or achievement total. When the achievements are put on Xbox.com, you will have to recover your gamertag and re-earn the achievements for them to count. We'll be sure to let you know when the achievements will be counted properly.Edit 2:
The achievements for Defense Grid: The Awakening
have now been added to Xbox.com. You can now play the DLC without any concerns.