Kumitantei: Old-School Slaughter
New ReleaseComing SoonDev: Mango FactoryReleased: Apr 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.
AdventureRPGVisual NovelHorrorComedyAnimeDetectiveCard Battler1980sMysteryAlternate HistorySingleplayerDark HumorPsychological HorrorFemale ProtagonistRetroCuteMemesDeckbuildingMultiple Endings
Key Stats
CCU
20
concurrent players
Followers
1.5K
Steam followers
Coming Soon
#35
Steam rank
Players / Activity
Engagement
Steam
| Metric | Value | Change | Updated |
|---|---|---|---|
| Ccu | 20 | -87.9% | May 11, 10:01 AM |
| Coming Soon Rank | #35 | — | Apr 23, 07:35 AM |
| Followers | 1,479 | +21.3% | May 10, 09:21 PM |
| New Releases Discount Pct | 10 | — | Apr 23, 08:38 PM |
| New Releases Final Price | $13.49 | — | Apr 23, 08:38 PM |
| New Releases Rank | #20 | — | Apr 23, 08:38 PM |