Single Player Gaming. Intense competition with, and against, fierce AI characters in three unique single player game types.
CSCZ also offers a simulated multiplayer mode, creating endless replayability for those who prefer a single player experience with the feel of online play.
Amazing Depth. Six story-driven single player episodes encompassing 25 missions, each with three distinctive modes of play for a total of 225 objectives.
New missions are set in realistic locations all over the world
New Weapons. New weapons and items including: M60 guns, LAW Rocket Launcher, Ballistic Shield and Pistol, Molotov cocktail, gas mask, and flares.
Enhanced Multiplayer. Each of the new weapons and maps can be played in both single player and multiplayer modes.
Includes exclusive 3rd CD with 20 minutes of Half Life 2 footage
 
A new stand-alone game, Counter-Strike: Condition Zero (CS: CZ) extends the award-winning Counter-Strike multiplayer game with new maps, weapons and more, while simultaneously introducing new technologies, an extensive single-player campaign, and cooperative play.
Texas-based Gearbox Software is codeveloping CS: CZ with Valve--the same partnership that produced the bestselling Half-Life: Opposing Force and Half-Life: Blue Shift expansions. For CS: CZ, Gearbox has created an extensive single-player campaign that includes more than two-dozen new missions and takes players to several fictitious regions of conflict around the globe. In addition to the single-player campaign, players will be able to set up cooperative games via Internet and LAN connections.