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Alpha Protocol Now Available for Pre-Purchase

Announcement - Valve
2010年4月1日
Alpha Protocol™, the upcoming Covert Ops RPG from SEGA and Obsidian Entertainment™, is now available for pre-purchase on Steam. Pick up the game before its release and receive a free copy of Space Siege.

Already own Space Siege? Pre-purchase now and you can gift your extra copy to a friend.

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