‘Dark Souls’

Keza MacDonald and Jason Killingsworth, the authors of “You Died: The ‘Dark Souls’ Companion,” talk about how “Demon’s Souls” hooked them, whether “Dark Souls” is a 21st-century “Super Mario Bros., ” and why “Souls” players are like figure skaters.

MacDonald is the editor of Kotaku UK and Killingsworth is a writer for Riot Games, the studio behind “League of Legends.”