Kumitantei: Old-School Slaughter

Released 2026 · Rating 90/100 · By Mango Factory

Kill each other...for science! The class of '89 is trapped in an elite school killing game. Investigate, solve, and expose your classmates in Kumitantei: Old-School Slaughter, an episodic murder-mystery ADV card-battler inspired by retro anime.

Steam Reviews: Very Positive — 90% (269 reviews)

Achievements: 11

Game Modes: Single player

Themes: Action, Historical, Horror, Mystery, Thriller

Platforms: PC (Microsoft Windows)

Genres: Adventure, Card & Board Game, Indie, Visual Novel

Kumitantei: Old-School Slaughter

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