J.B. Harold: Murder Club, sometimes as released as simply Murder Club or Final Murder Club, is a menu-driven adventure game from the creator of Hotel Dusk and Trace Memory, Rika Suzuki. It is the first in a series of murder mystery adventure games starring the titular detective.
The game was initially released in Japan for the NEC PC-98 computer in 1986 and ported to the MSX system in 1988. It was then released on the Famicom in Japan only as Murder Club. Eventually, a 1991 PC DOS version and a Turbografx-CD version, each with imrpoved graphics, were released in both Japan and the US. Both versions are known by the title J.B. Harold: Murder Club in the US. The game would then be released again some years later along with some of its sequels as graphically remastered DS games, though these were Japan-only releases. In more recent years, it has been ported to mobile phones and released for the iPhone internationally.