Shadow Warrior CD Key is a shooter type, first person game, whose developer is 3D Realms and publisher is GT Interactive. It got released on 13th May 1997. Making use of Build Engine of Ken Silverman, the game was developed and improved upon the previous Build engine of 3D Realms. It was on August 1997 that it got ported to Mac OS. True over-room situations had been introduced in the game, including usage of 3D voxels rather than 2D sprites as usable inventory items and weapons, transparent water, assorted vehicles and climbable ladders. It did contain some sexual themes as well as sense of humor even though being violent in nature.
Source code for the game had been released under GPL by the developer on 1st April 2005. For limited period of time, the game was announced to be free on Steam by Devolver Digital and later on for unlimited period of time. Flying Wild Hog had come up with a remake of the game titled ‘Shadow Warrior’, which got published through Devolver Digital on 26th September 2013. The game’s composer is Lee Jackson and designers are Jim Norwood and Frank Maddin. It received average to positive ratings from the critics.