Sword Art Online Setting (Sword Art Online)

Aincard

Sword Art Online

The first virtual game world, as well as the setting of the first arc of the story. The world takes the form of a giant floating castle called Aincrad, with 100 floors in it. Each floor has medieval-themed setting and a dungeon with a boss. The boss at the end of each floor has to be defeated before players can advance to the next higher floor. Like most RPGs, it implements a level based system.