Santa Monica, CA - October 18, 2005 - The Global Defense Force has been given the green light to invade the Strogg home planet as id Software(tm) and Activision, Inc. (Nasdaq: ATVI) announced today that QUAKE 4(tm) for the PC has shipped. The long-awaited sequel to QUAKE II®, QUAKE 4 enlists gamers in the role of Matthew Kane, a member of the 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. QUAKE 4 for the PC is available at retail outlets nationwide for a suggested retail price of $49.99. Additionally, fans can purchase the QUAKE 4 Special DVD Edition for a suggested retail price of $59.99, which includes QUAKE II, the QUAKE II expansion packs, and exclusive behind-the-scenes content. Both versions carry an "M" (Mature) rating by the ESRB.

"Fans can now buy QUAKE 4 and jump right into the epic battle between mankind and the Strogg," said Todd Hollenshead, CEO, id Software. "The single-player campaign has the excitement and feel of a blockbuster action movie, complimented by an addicting multiplayer component featuring all the speed and excitement of QUAKE III Arena®."

Developed by Raven Software and executive produced by id Software, QUAKE 4 begins only moments after the events of QUAKE II, with the Earth's fleet launching a massive offensive to the planet Stroggos. As Matthew Kane, gamers invade the alien stronghold, fighting alone, along side other Marines, and in mechanized walkers and hover tanks as they encounter the Strogg and their disturbing amalgamations of man and machine. Built on id Software's revolutionary DOOM 3® technology, QUAKE 4 also features fast-paced multiplayer competition modeled after the speed, style, and feel of QUAKE III Arena®.

For more information on QUAKE 4, please visit www.quake4game.com.