This awesome retrospective video from Gametrailers looks back at all of the Wolfenstein games ever release, beginning with two really, really old espionage titles.

What? I know, I had no clue either. The Wolfenstein series actually began as a stealth title that had you sneaking around Castle Wolfenstein avoiding and stabbing Nazis left right and center.

This in-depth video really takes you through everything and brought back some good memories of playing Spear of Destiny back in the day.

If you are looking forward to the new Wolfenstein title releasing this year then you will most definitely want to take this trip down memory lane.