Demon's Souls is an action role-playing game developed by FromSoftware and released in 2009. Set in the dark fantasy world of Boletaria, players take on the role of a hero tasked with defeating powerful demons to restore the kingdom. The game is known for its challenging gameplay, atmospheric environments, and deep lore. Players explore interconnected levels, battling enemies and bosses while collecting souls that serve as both currency and experience points. Demon's Souls features a unique online component, allowing players to leave messages for others and summon allies for assistance. Its success laid the groundwork for the popular Dark Souls series.