
Kumitantei: Old-School Slaughter
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.
90.7Rating
0Content
11Achievements
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About This Game
Kumitantei: Old-School Slaughter is a adventure/indie game designed for single-player, developed by Mango Factory and released in 2026. With an estimated 12,000 copies sold, it is considered a niche release on Steam. Community ratings across Steam average 90.7/100 — a exceptional reception overall. Players commonly describe it as Comedy, Anime, Visual Novel, Detective and Card Battler.
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User Reviews
90.7
Overall Score / 100
9.1/10
Steam (281 reviews)
DLCs (1)

Kumitantei: Old-School Slaughter Original Soundtrack
$9.99
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Game Information
Release Date
April 23, 2026
Developer
Mango Factory
Publisher
Akupara Games
Platforms
Windows
Controller
Full Support
Price
$14.99
Analytics & Metrics
Copies Sold (VISE)
Low Data
VRI ScoreLearning
59
There is a real chance this game will fall short of expectations.
VRI (Vorythic Recommendation Index) a single number indicating whether the game is worth your time. Built from game data, putting real players' opinions above progressive 'critics'.
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System Requirements
🪟 Windows
Minimum
- OS: Windows 10 (64-bit)
- Processor: 6th Gen i5/1st Gen Ryzen Series
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce GTX 1050 Ti / AMD Radeon RX 570 (4GB dedicated VRAM)
- DirectX: Version 12
- Storage: 6 GB available space
Recommended
- OS: Windows 10 / 11 (64-bit)
- Processor: 8th Gen i5/3rd Gen Ryzen Series
- Memory: 6 GB RAM
- Graphics: NVIDIA GeForce GTX 3060 / AMD Radeon RX 6600 XT (8GB dedicated VRAM)
- DirectX: Version 12
- Storage: 6 GB available space
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