Microsoft Studios and Gas Powered Games made Age of Empires Online available to users on Steam today.
The MMORTS remains free-to-play, but the eleven different DLC packs cost $4.99 each—that includes the temporarily reduced prices of the "Pro Persian Civilization," "Premium Egyptian Civilization," "Premium Greek Civilization," and "Premium Celtic Civilization" extras, all of which regularly run for $9.99.
Age of Empires Online released for PC last year.
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