J.B. Harold Murder Club is a classic detective adventure game developed by Riverhillsoft in 1986 for the NEC PC-98. Known for its hardboiled style and complex character ties, players take on the role of detective J.B. Harold to investigate the murder of wealthy businessman Bill Robbins in the town of Liberty. Through questioning, investigating, and interrogating suspects, players gradually uncover the truth. As the story unfolds, clues lead to a club founded years ago, and its members’ connections to the murder slowly come to light. The game has been ported to multiple platforms, including MSX, MS-DOS, and TurboGrafx-CD, and was released on the Nintendo DS in 2008 with improved graphics and features. Its intricate plot and rich detective elements make it a classic for mystery game fans.