Inferno is a standalone expansion to Arcadia Quest. It is 100% compatible with the original base game and introduces four new Guilds: Sharks, Tigers, Crows, and Serpents. It features new types of heroes, such as Alchemists and Gladiators.
There is a new branching campaign system, and the storyline revolves around the guilds descending into a fiery abyss. There are Brimstone cards that make the terrain risky to navigate, which operate similarly to the Tombstone cards from Arcadia Quest: Beyond the Grave.