Sui Generis is an action RPG with an isometric camera view set in an open fantasy world. In a treacherous world with a tormented history, the meager remnants of humanity live in fear of a misperceived past, haunted by forgotten gods and fearful of the very ground they walk on. There was always a vast underworld beneath their feet, evil demons waiting for them. Miracle Workers, people with powerful psychic abilities, abandoned their once benevolent natures and turned to cruel and dark pursuits in search of a higher power. Awakened by a looming threat, the abandoned and damaged creature gives birth to its ancient weapon, which now walks among the people once again.