Shadow Warrior is built upon the successful Build engine, that brought you Duke Nukem 3D. Use huge 3D rotating gun turrets to mow down opponents, swim, duck, jump, drive vehicles, climb ladders, Visit realistic places and settings in the game like an airport where a plane has crashed, construction sites and more, not just dark, dreary, faceless dungeons. Intense interaction with your environment in which you can blow up nearly every object, or interact with it in some way. Ever wondered how Duke would look if he was Asian? Here's the answer.
The shareware version of the game, plus various patches, and Lost Levels from Wanton Destruction add-on.