Maps started as basic layouts of the originals that were redesigned with help from concept art and 3D skybox technology. Many of the features in Condition Zero, including bot AI, were implemented from the start. Wanting a multiplayer component, Valve decided to create a remake of the popular Counter-Strike with help from Turtle Rock Studios, who were also developing Counter-Strike: Condition Zero at the time. After various development issues, TF2 was eventually delayed until long after the release of Half-Life 2. Each round is won either by completing an objective (such as detonating a bomb or rescuing hostages) or by eliminating all members of the oppositionĭuring the initial production of the Source engine, Team Fortress 2 was to be the first multiplayer game to be released on it. As in the original, Counter-Strike: Source pits a team of Counter-Terrorists against a team of Terrorists in a series of rounds.

Counter-Strike: Source ( CS:S) is a multiplayer first-person shooter developed by Valve Corporation as a complete remake of the original Counter-Strike on the Source engine.

Counter strike source lan version