RAGE Technology Group

RAGE Technology Group is a developing team inside Rockstar San Diego. They created Rockstar Advanced Game Engine, known more as "RAGE", which is commonly known to be the game engine used in Grand Theft Auto IV. Prior to developing the Rockstar Advanced Game Engine (RAGE), Rockstar Games, and primarily its Rockstar North studio, mostly used Criterion Games' RenderWare engine to develop games for Microsoft Windows, PlayStation 2 and Xbox, such as the early 3D installments in the Grand Theft Auto franchise. In 2004, Criterion Games was acquired by Electronic Arts, which led Rockstar Games to switch from RenderWare, and open RAGE Technology Group as a division of Rockstar San Diego. RAGE Technology Group started developing what would later become RAGE, based on Rockstar San Diego's previous Angel Game Engine (AGE). The first game to use the engine was Rockstar San Diego's Rockstar Games Presents Table Tennis, released for Xbox 360 on May 23, 2006 and ported to the Wii more than a year later. Since then, RAGE integrates the third-party middleware components Euphoria and Bullet, as character animation engine and physics engine, respectively.