Counter-Strike: Source kicks up the action in the world's most popular online game. It's the same Counter-Strike you've played and loved, but with the enhancements of the Source engine. With the Source engine, you get high-resolution textures, detailed character models, realistic physics and lighting, support for up to 64 players, shiny water effects & better objects - creating a more realistic gaming experience. Become a squad leader in an elite counter-terrorist operative, use new intel and weapon skills to complete an incredible collection of single-player missions. Lead your team in increasingly challenging scenarios -- from harsh jungle environments to severe arctic terrains, unforgiving deserts to dangerous international city streets. Rescue hostages, escort VIPs to safety and locate and defuse bombs. It's all in a day's work, for the world's deadliest soldiers. Downloadable content and new maps for extended gameplay