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ATLUS and ACE Team today revealed that the Steam-exclusive PC version of Rock of Ages, their balls-to-the-walls game of tower offense featuring fast-paced strategy, would ring in the holidays and the new year with a Christmas content update. The holiday-themed content includes an all-new Snowman's Head boulder skin (for both online and local use), permanently unlocks all defensive units for all maps, and introduces a number of limited time interface changes to make the game all the merrier!