Wolfenstein
The "Wolfenstein" series of video games started with the 1981 stealth-adventure video game "Castle Wolfenstein". It was developed by American programmer Silas Warner, a pioneer in the early eras of video gaming, especially the stealth genre. It was published by his (then) company M.U.S.E. Inc. (Muse Software). The player controls an unnamed American prisoner of war as he steals war files containing information about secret German war plans while avoiding or sometimes killing guards, and tries to escape the fortified Nazi stronghold Castle Wolfenstein, set during World War II. The game is often credited as one of the first video games of the stealth genre, since it focuses more on avoiding or disarming enemies, and killing them is considered a last resort.
Crusader: No Remorse
"Crusader: No Remorse" was developed by Loose Cannon Productions, a division of Origin Systems. It was directed by Tony Zurovec, whose chief inspiration for the game was "Castle Wolfenstein". The game uses an advanced version of the "" isometric view engine featuring full SVGA graphics. The game's audio uses a specially made engine, called Asylum Sound System, which employs MOD files rather than General MIDI, in order to provide good quality without relying on expensive hardware. Each mission and intermission level has its own track. The soundtracks for both games were composed by Andrew Sega and Dan Grandpre of the now-defunct Straylight Productions.