An unreal and unknown city appears to people all over the world. Is it a real presence ...... or a hoax? Just when your detective agency is busy collecting relevant information, your friend is pulled into the illusory city by a puff of black smoke. As the only one who can save him, you must immediately enter the weirdest place you've ever seen in your life ...... where magic, sorcery and science merge, imagination becomes reality, and strange creatures roam the streets. There are people and creatures with extraordinary powers and a black smoke that appears to be alive, and with them come enigmatic objects, secrets and dangers.

To save your friends and decipher these puzzling phenomena, you need to complete dangerous missions, explore dungeons, research amulets and seek the help of friends. Battle monsters, fight cults and destroy the terrifying forces of evil ravaging the city to uncover the many secrets of Shadow City!