Includes 14 new single-player levels and 10 multiplayer maps .

is the second official expansion for the seminal first-person shooter Quake II . Released on September 11, 1998 , it was developed by Rogue Entertainment and published by Activision . While the first expansion, The Reckoning , was developed by Xatrix Entertainment, Rogue Entertainment took the reins for Ground Zero , introducing a distinct flavor to the gameplay through more complex level design and new tactical options. Plot and Setting

Introduces five new weapons, including the ETL Rocket Launcher and the Plasma Beam .