[PC, Steam] Free: Nocturnal (Was $24.99) @ Steam

Nocturnal is an action game where you play as Ardeshir, a soldier of the Enduring Flame, returning to his homeland, Nahran, after many years of absence.

425 very positive reviews.

Following the appearance of a mysterious Mist, the island has recently fallen into chaos, and Ardeshir must wield his flaming sword and use powerful abilities to confront its mysteries and free Nahran.

Credit to Hiphopopotamus at OzBargain