Counter-Strike: Source

Counter-Strike: Source is a team-based tactical first-person shooter developed by Valve and a remake of the original Counter-Strike using the Source engine. Terrorists and Counter-Terrorists compete in short rounds built around objectives such as planting or defusing bombs and rescuing hostages. Combat rewards accuracy, positioning and teamwork. Players buy weapons, armor and equipment at the start of rounds using money earned from previous results, while eliminated players usually remain out until the next round begins. The Source engine introduced improved visuals, ragdoll physics and more interactive environments compared with earlier versions. Counter-Strike: Source also supports community servers, custom maps and mods, helping it remain popular long after release.