Counter-Strike: Source

Counter-Strike: Source is a 2004 remaster of Counter-Strike inside the Source engine, and the third game of the Counter-Strike franchise. It was the first Source game to be released, leading Half-Life 2 by a few months. As opposed to Counter-Strike there is no Assassination gamemode or riot shield included. Counter-Strike: Source features Hostage and Defuse gamemodes.

Aspects of the game that have changed from Counter-Strike include the behavior of the grenades, and the weapon recoil. The smoke grenades in Counter-Strike: Source spread much more slowly than the ones in Counter-Strike, and the flashbangs, which now utilize DirectX 9 effects, have a much more pronounced effect, and bounce very differently from the ones in Counter-Strike.

Counter-Strike: Source runs on the 2013 SDK. During the initial production of the Source engine, Team Fortress 2 was to be the first multiplayer game to be released on it. After various development issues, TF2 was eventually delayed until long after the release of Half-Life 2. 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. Many of the features in Condition Zero, including bot AI, were implemented from the start. Maps started as basic layouts of the originals that were redesigned with help from concept art and 3D skybox technology.