Counter-Strike: Source

This first person multiplayer shooting game is an upgraded version of the famous Counter-Strike game. Choose your side (Counter-Terrorists or Terrorists), plant bombs or rescue hostages. The outcome of the game depends on who completed their objective or if all enemies are eliminated.

• Developers: Valve Corporation, Turtle Rock Studios
• Publishers: Valve Corporation
• Initial release date:  November 1, 2004
• Platforms:  Microsoft Windows, Mac OS X, Linux
• License: Commercial