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

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

Today, it is available as part of modern digital collections, such as the Quake II Remaster on Steam and other platforms. It was also historically bundled in the Quake II: Quad Damage and Ultimate Quake compilations.

It is widely considered more challenging than the original Quake II campaign due to its more aggressive enemy placement and "trap-style" level design.