Bound by Flame lets you play a mercenary possessed by a flame demon in an ambitious Dark Fantasy universe. As a victim of this demonic influence, players will have to choose between the powers offered by this evil or to reject the demonic influence, developing heroic talents instead. Dangers, and enemies becoming more terrifying and fearsome in battle, will be temptations to acquire more power by giving up part of the hero's soul to the demon. Progression of the demonic influence will be reflected by the transformation of the hero's body.