Aooni (青鬼), occasionally spelt as Ao Oni is a freeware horror game developed by noprops.[1][2] It was first released in Japan in November 2008. The game focuses on four children investigating and becoming trapped in an old mansion said to house a monster.
It gained a cult following in Japan due to livestreams and playthroughs. Aooni received multiple sequels and spin-offs, and has been adapted into a variety of media, including three feature-length movies, a series of light novels, a manga and an anime series. A remaster was released on Steam and Nintendo Switch in 2024.[3]
Gameplay
The player controls Hiroshi as he explores the locked mansion, gathering items and solving puzzles in order to escape. The Aooni will begin to chase the player at both random and at certain scripted moments throughout the game.[4]