...Iru!

...Iru! is a 1998 adventure game for the PlayStation. It was developed by Soft Machine and published by Takara. The game has a horror theme, and is set on an island off the coast of Japan, where students find themselves trapped in a high school where one by one, students are discovered dead. The game was an anomaly from Soft Machine as they were predominantly known for assisting with trivia and sports video games before Iru!. It was also a rare Japanese horror game that drew from Cthulhu Mythos. On its release, it received middling scores from Dengeki PlayStation who found the game appropriately scary, but found its controls and pacing to be weak.