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"Dead Nation's expansion pack, \"Road of Devastation,\" is about to get a bit less devastating with the addition of the \"Arcade\" game mode. As the \"Road of Devastation\" was about surviving against impossible, zombie-filled odds, \"Arcade\" is about modifying those odds in your favor. That plays out in-game via checkpoint-based revival and the ability to choose a difficulty level (other than \"devastating,\" of course).The Arcade modification appears to be a free update to Dead Nation, but we won't be sure until PlayStation Network updates later today and the content goes live. The \"Road of Devastation\" content, however, costs $3.99."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2012/06/26/dead-nations-expansion-gets-an-expansion-today-with-arcade/>