Cross Tantei Monogatari 1: Zenpen is a Japanese adventure game where players control Ken Koruso, an aspiring detective investigating his father's fatal car accident. Developed by WorkJam and released for PlayStation in 1999, this title enhances the original Sega Saturn version with full voice acting and improved graphics. The game features seven distinctive episodes, each presenting unique mysteries to unravel.
Cross Tantei Monogatari: Motsureta Nanatsu no Labyrinth is a Japanese adventure game about a young man named Ken Koruso that hopes to become a detective and solve the mystery behind the car accident that killed his father. The title was the very first game created by WorkJam, a developer founded by Yutaka Kaminaga that famously took over the Tantei Jinguji Saburo franchise after the closing of Data East. Cross Tantei Monogatari was initially released for the Sega Saturn in Japan on June 6, 1998 and featured seven different episodes that had their own mysteries to solve. The following year a PlayStation port was released that contained several enhancements including the main character being fully voiced among other improvements. A discounted version was also published in 2000 that was separated into two titles with episodes 1-4 being in the first game and episodes 5-7 in second game.