It's been 20 years since we shot our first 3D Nazi within the walls of Castle Wolfenstein, which makes us feel older than you know.
To mark the game's 20th anniversary, Bethesda has released a swag of celebratory content, including Wolfenstein 3D Classic Platinum for iOS and a free version of the original game which you can play in your browser (click here).
But perhaps the most intriguing release is the above video, in which id Software co-founder John Carmack goes into great detail about how the game was made.
The interview runs for nearly 30 minutes in total, but if you were a fan of popping stoßtruppen back in the day, it will be time well spent.
See also:
Top 25 landmark FPS games
Wolfenstein 3D celebrates 20th anniverary with free game
Ban this sick filth! A history of violent video games
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