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// Kumitantei: Old-School Slaughter(2026)

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About 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.
Release Date
Apr 23, 2026
Developer
Mango Factory
Publisher
Akupara Games
//

Kumitantei: Old-School Slaughter FAQ & buying guide

Is Kumitantei: Old-School Slaughter worth buying?

Steam
90.88% positive
'Very Positive', 296 reviews

Be the first to review Kumitantei: Old-School Slaughter

What is Kumitantei: Old-School Slaughter about?

Himari Sanada is an ordinary girl who's had the greatest Imperial honor for students thrust upon her: an Absolute title and admission to the prestigious military research academy Janus Institute. The morning of her first day however, she does not wake up in her bedroom, instead finding herself trapped alongside 15 other Absolute students within a decaying old bunker seemingly built by their new school. Confronted by a strange two-faced cat, the class learns they've been brought here as test subjects in a kill-or-be-killed Apathy Experiment designed to fracture and drain their very humanity. Himari, the Absolute Barista, desires to overcome the eccentricities of her fellow participants and make friends, but is often instead forced to investigate and solve their grisly murders. Bond with the others to learn their Skills, scour diverse crime scenes for Evidence, and then leverage it all in the stylish and frantic Clinical Trial. Will they band together to uncover secrets of the past, or lose their humanity and lives in the present?

ActionHorrorThrillerHistoricalComedyMystery

Game modes: Single player

Quick answers

What is the cheapest place to buy Kumitantei: Old-School Slaughter?

Right now the lowest price for Kumitantei: Old-School Slaughter we're tracking is $9.47 at Kinguin โ€” 37% below Steam's $14.99. We compare 5 stores and prices refresh every few minutes.

What is the lowest price Kumitantei: Old-School Slaughter has ever been?

The lowest price we've recorded for Kumitantei: Old-School Slaughter is $9.46 at Kinguin on June 8, 2026. The current best price is about 0% above that low.

Is Kumitantei: Old-School Slaughter worth buying?

91% of 296 Steam user reviews for Kumitantei: Old-School Slaughter are positive ("Very Positive").

When was Kumitantei: Old-School Slaughter released?

Kumitantei: Old-School Slaughter released on April 23, 2026, developed by Mango Factory and published by Akupara Games.

What platforms is Kumitantei: Old-School Slaughter available on?

Kumitantei: Old-School Slaughter is available on PC (Microsoft Windows). It supports single player.

When do Kumitantei: Old-School Slaughter prices drop?

Kumitantei: Old-School Slaughter last hit a new low of $9.46 on June 8, 2026 at Kinguin. Current best price is $9.47. Prices on this page refresh every few minutes, so check back around seasonal sales for new lows.

Where's the cheapest place to buy Kumitantei: Old-School Slaughter?

The cheapest Kumitantei: Old-School Slaughter price right now is $9.47 at Kinguin, 37% below the Steam price.

Kumitantei: Old-School Slaughter price comparison across stores
StoreDiscountPriceBuy link
KinguinBest priceโ€”$9.47Buy Kumitantei: Old-School Slaughter at Kinguin
Instant Gaming-51%$11.45Buy Kumitantei: Old-School Slaughter at Instant Gaming
Steamโ€”$14.99Buy Kumitantei: Old-School Slaughter at Steam
Green Man Gamingโ€”$14.99Buy Kumitantei: Old-School Slaughter at Green Man Gaming
GamersGateโ€”$14.99Buy Kumitantei: Old-School Slaughter at GamersGate

All-time low: $9.46 at Kinguin on Jun 8, 2026 โ€” the current best price is 0% above it.

Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.