The first version of the engine was known as W3D ("Westwood 3D") was highly modified version of SurRender 3D engine, developed by Hybrid Graphics Ltd. Westwood used W3D for Emperor: Battle for Dune and updated for Command & Conquer: Renegade. After Westwood was bought by Electronic Arts the engine was further updated and renamed to SAGE. SAGE is still being used today in EA's RTS games.