J.B. Harold Murder Club is an adventure/mystery game originally developed and published by Japanese company Riverhill Soft for the PC-88, PC-98, Sharp X1 and the FM-7 computers in 1986. It was released again in 1988 for the MSX and Sharp X68000 and in 1989 for the NES. It saw its first remake for the Turbografx-CD in 1990 and translated and brought to the US the following year for the same console, while the original version was released in the US for DOS that same year. The remake was again released (in Japan only) for the FM-Towns in 1992 and for Windows in 1996. A second remake was made for the Nintendo DS in 2008 under the title Keiji J.B. Harold no Jikenbo: Satsujin Club.