Uncommon

Ao Oni

2004 Japanese role-playing horror game

Ao Oni

Uncommon card · No. 152670

Ao Oni (青鬼; lit. 'Blue Demon'), occasionally spelt as Aooni is a freeware horror game developed by noprops. It was first released in Japan in 2004. The game's plot focuses on a boy named Hiroshi and his friends investigating and becoming trapped in an old mansion said to house a monster, with him having to escape as the monster hunts him down. Ao Oni gained a cult following in Japan and overseas due to livestreams and playthroughs. Ao Oni has 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 and on Playstation 5 in 2026.

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