id Software?, Raven Software and Activision, Inc. have confirmed Earth?s invasion of Stroggos with the announcement that QUAKE 4? PC has entered manufacturing and will begin shipping to retail stores nationwide on Tuesday, October 18. The long awaited sequel to QUAKE IIĀ®, QUAKE 4 enlists gamers in the role of Matthew Kane, a member of the Earth Defense Force?s legendary Rhino Squad, to penetrate deep into the heart of the Strogg war machine and engage in a series of heroic missions to destroy the barbaric alien race.