Sierra maakt zijn games voor de wintermaanden bekend:Sierra Studios today announced SWAT 3, Half-Life: Opposing Force, and Gabriel Knight III will be in stores by November 20th acro North America.SWAT 3: CQB is based on L.A.P.D. SWAT tactics with mi ions taken from real-world headlines. The game utilizes motion-capture technology, a real-world physics engine, and the close cooperation of actual L.A.P.D. SWAT officers during the game's development cycle. The game also uses photographic resources for faces and clothing, 3D models, dynamic lighting, and environments built to scale.Half-Life: Opposing Force is the official game expansion for Valve Software's Half-Life. In Opposing Force (a.k.a. "Op For"), players return to the Black Mesa Research Facility to engage in a new episode of single-player action. In addition to the new single-player experience, Opposing Force also contains a collection of new multiplayer content. These include new weapons, player characters (models) and several new multiplayer maps designed by Gearbox Software as well as levels created by legends of the Dallas first-person shooter community.Gabriel Knight III: Blood of the Sacred, Blood of the Damned is the next installment in the famed Gabriel Knight mystery/adventure series. Gabriel Knight III, written and designed by Jane Jensen, features a 3D real-time adventure environment where players solve a mystery using their wits for various problems solving tasks.More information about Sierra's extensive lineup of holiday offerings can be found www.sierra.com.