High Quality Content by WIKIPEDIA articles! Shadow Warrior, often known by its initials SW, is a first-person shooter computer game developed by 3D Realms and released on May 13, 1997 by GT Interactive. Shadow Warrior was developed using Ken Silverman`s Build engine and improved on 3D Realms` previous Build engine game, Duke Nukem 3D. Mark Adams ported Shadow Warrior to Mac OS in August 1997.