Kumitantei: Old-School Slaughter

Kumitantei: Old-School Slaughter has sold an estimated 15.9k copies on Steam, based on 319 reviews. How we estimate

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Followers

n/a

Users who follow this game on Steam.
Reported by Steam

Estimated Sales

15.9k

Estimated total copies sold using review-based models.

Est. Revenue

239.1k

Rough gross revenue = price × estimated sales.
Overview

Developer: Mango Factory

Publisher: Akupara Games

Release Date: 23 Apr, 2026

Price: $14.99

Genres: Adventure, Indie, RPG

Tags: Comedy, Anime, Visual Novel, Detective, Card Battler, Mystery, 1980s, Horror, Alternate History, Singleplayer, Adventure, Psychological Horror, Dark Humor, Female Protagonist, RPG

Description: 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.

Wishlists
MonthEst. wishlists
Apr 202624,641
Mar 202622,275
Feb 202619,457
Jan 20268,054
Game News
Kumitantei Release Hotfix #3
Community Announcements · 2026-04-26 05:55:14
Paradise Killer x Kumitantei Absolute Paradise Bundle
Community Announcements · 2026-04-24 19:11:04
Kumitantei Release Hotfix #2
Community Announcements · 2026-04-24 08:06:14
Steam Trading Cards, Badges, and More Now Available
Community Announcements · 2026-04-24 00:47:38
Kumitantei Release Hotfix
Community Announcements · 2026-04-23 19:18:22
First Episode Out Now!
Community Announcements · 2026-04-23 16:00:31
Kumitantei Steam Deck Verified
Community Announcements · 2026-04-20 20:45:42
Kumitantei Pricing
Community Announcements · 2026-04-16 16:45:32
Thank you for 15,000 wishlists
Community Announcements · 2026-04-07 01:28:22
Kumitantei Opening Movie Premiere Tomorrow
Community Announcements · 2026-03-31 21:30:30
Kumitantei first episode out on April 23rd
Community Announcements · 2026-03-09 18:00:25
Kumitantei in the MIX + Kinda Funny Showcase
Community Announcements · 2026-03-06 16:00:47
Happy Valentine's Day from Kumitantei X YAKG!
Community Announcements · 2026-02-14 16:00:50
Merry Christmas from Kumitantei!
Community Announcements · 2025-12-25 11:00:06
Akupara Games Publishing Kumitantei
Community Announcements · 2025-10-31 16:01:49
Release Schedule Update
Community Announcements · 2025-09-19 15:55:52
Steam Next Fest Demo Update
Community Announcements · 2025-06-09 13:12:21
Development Update #5: Steam Next Fest and Voice Cast Trailer Incoming!
Community Announcements · 2025-06-02 17:00:20
Happy Easter from Kumitantei!
Community Announcements · 2025-04-20 13:25:29
Development Update #4: Scriptwriting Completed, Voice Acting Confirmed and More!
Community Announcements · 2025-04-08 13:01:35
Kumitantei in The Storyteller's Festival!
Community Announcements · 2025-02-17 22:00:52
February 17th Demo Update
Community Announcements · 2025-02-17 14:00:28
Happy Valentine's Day from Kumitantei!
Community Announcements · 2025-02-14 14:00:49
Development Update #3: Episode 1's Progress and Early Access
Community Announcements · 2025-01-28 14:00:20
Development Update #2: Events, Demo Update and Music
Community Announcements · 2024-12-24 14:04:23
Development Update #1: UI and Social Media
Community Announcements · 2024-11-19 14:00:59
Happy Halloween from Kumitantei!
Community Announcements · 2024-10-28 13:00:05
Kickstarter Concluded. We Are Officially Funded!
Community Announcements · 2024-10-17 14:41:35
Kickstarter's Goal Met! Thank You So Much!
Community Announcements · 2024-10-14 15:27:52
Kickstarter Launched!
Community Announcements · 2024-09-17 13:00:26
September 14th Demo Update
Community Announcements · 2024-09-14 21:04:52
September 10th Bugfix
Community Announcements · 2024-09-10 20:28:43
September 7th Quality of Life Patch
Community Announcements · 2024-09-08 00:26:48
Hotfix Patch
Community Announcements · 2024-09-06 20:30:44
DEMO OUT NOW
Community Announcements · 2024-09-06 13:00:30
Dev Log #1: Q&A
Community Announcements · 2024-08-03 13:00:11