Return to Castle Wolfenstein
Return to Castle Wolfenstein is a first-person shooter video game published by Activision, released on November 19, 2001 for Microsoft Windows and subsequently for PlayStation 2, Xbox, Linux and Macintosh. The game serves as both a remake and a reboot to the "Wolfenstein" series. It was developed by Gray Matter Interactive and Nerve Software developed its multiplayer mode. id Software, the creators of "Wolfenstein 3D", oversaw the development and were credited as executive producers. The multiplayer side eventually became the most popular part of the game, and was influential in the genre. Splash Damage created some of the maps for the Game of the Year edition. A sequel, titled "Wolfenstein", was released on August 18, 2009.
ShadowCaster
The "ShadowCaster" game engine, a successor of the "Wolfenstein 3D" engine and a predecessor of the "Doom" engine, was written by id Software's John Carmack and licensed to Raven Software. Carmack wrote the "ShadowCaster" 3D engine during his technology research after id Software completed "Wolfenstein 3D". The engine features diminished lighting, texture-mapped floors and ceilings, walls with variable heights and sloped floors. The engine was "about half as fast as that of "Wolfenstein"" but fit the exploration of "ShadowCaster" rather than the fast-paced action of "Doom".