Voiceover artist Jon St. John, the voice of Duke Nukem tweets of his work for Valve, revealing plans for a Defense of the Ancients game: "Had a great time in Seattle last week recording for DotA. The guys at ValveSoftware are awesome! Going to PAX? Might see you there - Sept3-5." Thanks Joystiq. IceFrog, developer of the original DotA modification for Warcraft III, joined Valve in October 2009, and offered indications earlier this year that a DoTA game announcement was coming soon.