Kumitantei: Old-School Slaughter

Source: Steam
App ID: 2759280
Developer: Mango Factory
Publisher: Akupara Games
Released: April 23, 2026

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.

Current players

Outdated

2 observations from Oct 21 to Oct 28. Latest 7 players at Oct 26 01:45 UTC. Peak 7 at Oct 26 01:45 UTC. No collection gaps in this window.

24h Peak

2026 Peak

Oct 20 01:45 UTC

All-Time Peak

Oct 20, 2026 01:45 UTC

Live Top Seller

Weekly Top Seller

Price

Reviews

90% Positive

291 positive, 32 negative


Oct 26	7	Not Available	Not Available	7	7
Oct 23	4	Not Available	Not Available	4	4
Oct 20	8	Not Available	Not Available	8	8
Oct 17	4	Not Available	Not Available	4	4
Oct 14	2	Not Available	Not Available	2	2
Oct 11	4	Not Available	Not Available	4	4
Oct 8	3	Not Available	Not Available	3	3
Oct 5	6	Not Available	Not Available	6	6
Oct 2	2	+1	+57.0%	2	1
Oct 1	1	Not Available	Not Available	1	1

Current players

Player History

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