GoldSrc

GoldSrc
Other namesGoldSource, Half-Life Engine
Developer(s)Valve, id Software
Initial releaseNovember 19, 1998; 26 years ago (1998-11-19)
Written inC, C++, Assembly language
PredecessorQuake engine
SuccessorSource Engine
LicenseProprietary

GoldSrc (pronounced "gold source"), sometimes called the Half-Life engine, is a proprietary game engine developed by Valve. At its core, GoldSrc is a heavily modified version of id Software's Quake engine. It made its debut in 1998 with Half-Life and powered future games developed by or with oversight from Valve, including Half-Life's expansions, Day of Defeat and games in the Counter-Strike series.

GoldSrc was succeeded by the Source engine with the releases of Half-Life: Source, Half-Life 2, and Counter-Strike: Source in 2004.