Lionheart: Legacy of the Crusader is an action role-playing game, developed for the PC by Reflexive Entertainment, and released on August 13, 2003. The game is viewed from a 3/4 isometric camera angle (as is common in many third-person role-playing games, such as the Diablo series). It focuses on a protagonist, controlled by the player, as he travels on a quest that constitutes the central focus of the game. The plot stipulates a rift in reality that drastically altered medieval history by allowing demons and other similar beings to enter the mortal realm.