Dark Adventure is a dimetric action-adventure game produced by Konami that was released for the arcades in North America in 1987.[3] It was the first arcade game by Konami that allowed up to three players simultaneously. The game was also released as Majū no Ōkoku in Japan and as Devil World in other countries outside North America, although these versions feature significant gameplay differences and only allow up to two players.

An archeologist named Dr. Condor discovers the coffin of a demon in ancient ruins. During a press conference announcing his discovery, he decides to open the coffin for the first time, only to be transported into another world alongside a reporter named Labryna and another archeologist named Zorlock. The three heroes must now fight their way out of the Devil World in order to defeat the evil Demon King who is keeping them trapped and return to the human world.