Spear of Destiny
Spear of Destiny is a prequel to Wolfenstein 3-D. It is a first-person shooter that uses the same engine and has the same gameplay, but the game is not divided into 6 separate episodes - all levels are one long episode. The enemies and weapons are pretty much the same as in Wolfenstein 3-D. The only new additions are: new bosses, a new enemy type, and a new pickup (a large crate of ammo).
Story
It's World War II and you are B.J. Blazkowicz, the Allies' most valuable agent. In the midst of the German Blitzkrieg, the spear that pierced Christ's side is stolen from Versailles by the Nazis and secured in the impregnable Wolfenstein Castle. Legend has it that no one can be defeated if they have the spear. Hitler believes he is invincible with the power of the spear as his brutal army sweeps across Europe. Your task is to infiltrate the heavily guarded Nazi stronghold and reclaim the Spear from an already unhinged Hitler. Losing his most coveted weapon could drive him insane. But it could also cause you to be torn to pieces.