Portopia Renzoku Satsujin Jiken is a detective adventure game for the Nintendo Entertainment System where players assume the role of an unnamed detective investigating the murder of a bank executive. Players gather clues, explore diverse locations, engage with various characters, and solve puzzles. The game's innovative design was influential in establishing the visual novel genre and inspired notable game developers.
An investigation adventure in which the player, acting as an unnamed Japanese detective, is called to solve the murder of a bank executive by searching for clues, exploring different areas, interacting with characters, and solving item-based puzzles. The game, especially its NES version, was received positively in Japan, where it was an influential title that defined the visual novel genre, as well as inspiring future designers such as Hideo Kojima and paving the way for creator Yuji Horii to go on to make Dragon Quest series of role-playing games.