The biggest one is probably the Knight Helmet shell, a direct reference to the classical helmets worn in Dark Souls. This item can be found in the Old Ocean, the very last zone of the game.

In Dark Souls and others, armor is the ultimate video game fashion symbol Dark Souls, Final Fantasy, Diablo, and others all have one trait in common by Kazuma Hashimoto Oct 11, 2022, 7:35 AM PDT ...

There's a particular breed of Dark Souls fan – the "11ers". Those who jumped into Dark Souls 1 back in 2011, while in their 20's or at school.