Set in a dark fantasy world, taking part mostly in the southern kingdom of Boletaria that has been showered by a terrible, cursed deep fog, brought upon by the Old One, which causes demons to come forth and devour the souls of men. The game is described a spiritual successor to the King's Field series of games.
Demon's Souls received critical acclaim in North America and Japan for its dark fantasy design, variation in combat choice and integrated online interactions. It was particularly known for its high difficulty level, with many critics noting it as a genuine challenge. The game was a commercial success, selling 39,966 copies in its first week in Japan and boosting PlayStation 3 sales in that region. In North America, Demon's Souls debuted at the eleventh place on October of 2009, according to the NPD group, with 150,000 sold, selling 500,000 by September 2010.
- Minor character Garl Vinland from Demon's Souls makes an appearance in the comic series Dark Souls: The Age of Fire.
- Demon's Souls Wiki (Fandom)