The derivative medium is, as others have pointed out, Games Workshop's 40K and in particular its Orks and their Gorkamorka subgame, spawned from the unholy union of The Road Warrior and football hooligans. But damned if by parallel evolution or homage over 35 years, George Miller hasn't returned the dividend in the form of tribal skinheads called Warboys (or is it Warboyz?) and even a musician stand.
|Now you get it.|
The "Citadel": just me overreading, or a really high pitched dog whistle for nerds?