Half-Life is a First Person Shooter developed by Valve Software, originally released in 1998 for the PC. The game was created with Valve's GoldSrc engine, a heavily modified iteration of the Quake engine. Upon release, Half-Life was met with critical acclaim and received over 50 Game of the Year awards. Half-Life is also notable for the large modding community that grew alongside it. Several mods for Half-Life became so popular that they eventually became franchises themselves, separate from the Half-Life universe. Counter-Strike, Team Fortress and Day of Defeat are the most well-known examples of this. Because of its revolutionary gameplay and immeasurable effect on the video game industry, Half-Life is often lauded as one of the greatest games of all time.