Satsui no Kaisou: Power Soft Satsujin Jiken

A murder mystery graphic adventure game for the Famicom. It was never released outside of Japan.

Satsui no Kaisou: Soft House Satsujin Jiken ("Hierarchy Of Murderous Intent: The Software House Serial Murders") is a menu-based adventure game by Hyperware in which the player is a young man attempting to solve the murder of a successful software developer.

Like in many Famicom adventure games, the player can gather clues by examining sites of interest, talking to various people and keeping track of the information they've gathered. As the case continues, more people working for the titular game company start dying and the player is given more murders to solve.