Rockstar has integrated a few third party middleware components into RAGE like the proprietary Euphoria[2] character animation engine and the open source Bullet[3] physics engine. Prior to RAGE, Rockstar mostly used Criterion Games' RenderWare engine to develop various game titles, including the PlayStation 2, Xbox, and Microsoft Windows installments of the Grand Theft Auto franchise.[4] Since the release of Max Payne 3, the engine supports DirectX 11 and stereoscopic 3D rendering on the PC platform.[5]
^"We spend an hour with the biggest PSP game around!". 1UP.com. Ziff Davis. September 12, 2005. Retrieved April 10, 2007. [O]ne of the more interesting notes about Liberty City Stories' technology is that this is the first time since the series has gone 3D that there's a GTA game not built using Renderware. Instead, the LCS engine has been built by Rockstar Leeds and Rockstar North.
^Totilo, Stephen (May 4, 2006). "The First Rule Of Ping-Pong Club: Talk About Rockstar's Table Tennis Game". MTV News. Viacom. Retrieved April 10, 2007. The Rockstar reps explained that the game [Table Tennis] was running on RAGE, the Rockstar Advanced Game Engine. This is the graphics technology gamers are to expect from future Rockstar games, including the next "GTA."