About
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.
Released · Steam · App 2759280
Kumitantei: Old-School Slaughter
Mango Factory · published by Akupara Games
Genres
AdventureIndieRPG
AdventureIndieRPGview more (+3)
Categories
Single-playerSteam AchievementsFull controller supportSteam Trading CardsCustom Volume ControlsAdjustable DifficultySave AnytimeSteam CloudFamily Sharing
Single-playerSteam AchievementsFull controller supportSteam Trading CardsCustom Volume ControlsAdjustable DifficultySave AnytimeSteam CloudFamily Sharingview more (+9)
Player tags
ComedyAnimeVisual NovelDetectiveCard BattlerMystery1980sHorrorAlternate HistorySingleplayerAdventurePsychological HorrorDark HumorFemale ProtagonistRPGRetroCuteMemesDeckbuildingMultiple Endings
ComedyAnimeVisual NovelDetectiveCard BattlerMystery1980sHorrorAlternate HistorySingleplayerAdventurePsychological HorrorDark HumorFemale ProtagonistRPGRetroCuteMemesDeckbuildingMultiple Endingsview more (+20)
Followers
0
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Wishlists est
0
Price
14.99
USD
Release
Apr 23, 2026
released
14 snapshots· 14 carried
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Tracked since May 6, 2026·Details 8d ago