Wolfenstein 3D is a first-person shooter video online DOS game, the third part of the Wolfenstein series and franchise. You will assume the role of Allied spy William "B.J." Blazkowicz during World War II as he escapes from the Nazi German prison ‘Castle Wolfenstein’ and carries out a series of crucial missions against the Nazis. The game is divided into some levels, each of which is divided into areas and rooms by a pattern of walls and doors. Levels are collected into groups, based on episodes. At each level you need to kill guards and Nazis, and, at the end of each one of them, you will find a final boss to kill, all this managing your health and supplies of ammunition. You will finish the level when you will reach the elevator at the end of the floor.