Kumitantei: Old-School Slaughter

About

About the Game Is survival in the cards? Kumitantei™: Old-School Slaughter is an episodic murder-mystery ADV cardbattler that lovingly fuses retro anime analog horror with killing game!

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8
Based on
249 reviews
Country Compatibility:
Languages:
Developer:
Mango Factory
Publisher:
Akupara Games
Engine:
Godot
Release date:
23 April 2026
Recent Steam reviews:
Very Positive (73)
All Steam reviews:
Very Positive (249)

Game features

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Description

About the Game

Is survival in the cards?

Kumitantei™: Old-School Slaughter is an episodic murder-mystery ADV cardbattler that lovingly fuses retro anime analog horror with killing game! Kumitantei will consist of 6 episodes, beginning to release in early 2026.

"The Empire of Japan, 1989... Awoken in a decaying old bunker, sixteen elite Absolute Students are trapped in a kill-or-be-killed Apathy Experiment. Will they band together to uncover secrets of this anemoic alternate past, or lose their humanity and lives in the present?"

With a visual style inspired by Rumiko Takahashi’s Urusei Yatsura and '80s anime alongside classic Japanese mystery-adventure games like Danganronpa and Ace Attorney, Kumitantei™ thrusts you into a suspenseful character-driven killing game narrative where your deckbuilding and detective skills are the only keys to surviving. It's a creepy-cute love letter to decades of ADVs that wears its many inspirations on its sleeve: perfect for fans of visual novels, detective games, and deckbuilders with deep narratives.

Features:

  • Bond with your classmates! Get to know the Absolute Class of '89 by listening to them, giving them gifts, and receiving powerful cards to use during debates!

  • Investigate grisly murders! Use your detective skills to comb through slain classmates’ crime scenes and take your evidence to trial!

  • Survive the trial! Cut through the lies and prove your case. Inspired by Ace Attorney and the cult classic Danganronpa series, Clinical Trials can only end in bloodshed, whether it's the culprit's or everyone else's!

  • Build your deck! Create absolute combos using cards you find in the Bunker and through bonding with your classmates to dominate the debates and trials!

  • Please insert coin! Test your retro gaming skills in a variety of faithfully crafted anemoic riffs on true old-school arcade icons!

Recommended system requirements

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:
5 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:
5 GB available space

User reviews

DakotatheOrange
Recommended | 09 May 2026
15.7h played

This is a game that's quite the love letter to its inspiration, with the biggest and most obvious one being Danganronpa. The cast is well voiced and quite fun to listen to during the trials and the writing each of the

Helpful: 2
Jackie Meyers
Recommended | 16 May 2026
19.4h played

If this continues the way the first chapter has? This'll be one of my favourite entries in this entire genre. Excellent Dangan-esque, excellent mystery, excellent cast, superb visual and audio direction, wonderful

Helpful: 2
SinInChaos
Recommended | 15 May 2026
12.1h played

This game was a pleasant surprise for my to find and stream. The story is much better than I had anticipated and has me very excited to see where everything is heading in future chapters. Characters are great,

Helpful: 1
Old Gregg
Recommended | 17 May 2026
6h played

This is incredibly high quality and I'm extremely excited for more to come in the future. The VAs are doing an amazing job, and all of the cutscenes and CGs are gorgeous. Very strong first Prologue and Chapter 1.

Helpful: 1
kamsiyonnaanago
Recommended | 09 May 2026
16.0h played

This was an amazing experience. Everything about it was so detailed and also very homage to that of Danganronpa while introducing a new card battle mechanical that act as the rebuttal showdown and B.T.B of the of the

Helpful: 0
Red hoodie
Recommended | 20 May 2026
15.9h played

So good that I throw-up after the execution (I wish i was joking) As someone who's been in the Danganronpa community for almost seven years now, this was really great. And I can tell that there's love put into this. I

Helpful: 0