The year is 1943, and the Nazi War machine threatens to not crush Europe, but the rest of the world as well. Unknown to the general public, the fate of the free world often lies in the hands of a select few heroes, members of the Office of Secret Action.

You are one of these legendary protectors of freedom, B.J. Blazkowicz. Highly trained in reconnaisance, infiltration, combat, and military tactics, it is your job to uncover the reason behind the Nazi's activity around Castle Wolfenstein. The leader of the Nazi Paranormal Division, a General by the name of Himmler, has increased his activity in this area, and reports have come in that his group is experimenting in occult magic and horrific scientific experiments involving cybernetics and genetic manipulation.

Return to Castle Wolfenstein is a first person shooter game, powered by the (heavily tweaked) Quake 3 engine. The single player game spans seven missions, each of which has several different levels. The game challenges you to not only survive, but to recover the many treasures and artifacts that the Nazi regime has stolen.