10 Things You Didn't Know About Wolfenstein

10. The Family Of B.J Blazkowicz

William Joseph Blazkowicz is the kind of tough and rough protagonist we all love to control in first-person shooter releases. First appearing in 1992's Wolfenstein 3d, Blazkowicz has gone through numerous character changes, including alterations to his accent, hair, birth-location and personality. What has remained a consistent feature of the Jewish-Polish American is his everlasting perseverance to topple the Nazi empire.

One surprising fact about the games' leading character is his relation to two individuals from other titles. In fact without Blazkowicz, there would be no one tasked with preventing the demons from invading the Martian base in Doom. If Wolfenstein's RPG iOS game is to be believed, B.J is actually the great-great-great grandfather of Stan Blazkowicz, a marine and one of three protagonists in Doom II RPG.

Elsewhere, B.J's DNA spreads to the Commander Keen game, where eight-year-old child genius, Billy Blaze is said to be the grandson of Wolfenstein's famed Nazi-killer.

With Wolfenstein 3D, Doom and Commander Keen all developed by iD Software, it's no surprise the creators left the trail of heroic family heritage throughout the titles as an intriguing Easter egg.