Corpse Party is one of the earliest Japanese horror games to come out, and still manages to be a terrifying journey today.
Yomawari: Night Alone is a game about a girl searching for her sister and her dog, who was involved in a car accident.
Monster Party is a charming platformer where you play as a boy-beast hybrid killing giant bats, human-faced dogs, eyeballs, and fried shrimp.
Danganronpa 2 is a crazy visual novel about investigating murders and holding trials that are borderline absurd. So, like the first game!
Closure is a superb puzzle platformer that shines in its light-based physics gameplay, striking visuals and an intense soundtrack.