Dark Souls is an action role-playing video game set in an open world environment. It was developed and published for PlayStation 3 and Xbox 360 by From Software in Japan and by Namco Bandai Games internationally. A spiritual successor to From Software's Demon's Souls, Dark Souls began development under the working title Project Dark. The game was released in 2011, in Japan on September 22, in North America on October 4, in Australia on October 6, and in Europe on October 7. On August 24, 2012, the "Prepare to Die" edition of Dark Souls was released for PC, featuring additional content previously unavailable to PlayStation 3 and Xbox 360 users. On October 23, 2012, the additional content from the PC version was released as downloadable content for consoles under the title Artorias of the Abyss. Dark Souls takes place in the fictional kingdom of Lordran. Players assume the role of a cursed human character who has been chosen to make a pilgrimage out of the Undead Asylum to discover the fate of the undead. The plot of Dark Souls is primarily told through descriptions of in-game items and dialogue with non-playable characters (NPCs). Players must piece together what vague information they obtain in order to understand the story, rather than having it laid out for them by the game. Dark Souls garnered recognition due to its grueling difficulty and unforgiving challenge. The game world is filled with weapons, armor and consumable items that serve to assist the player throughout their journey.