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| Publisher | Akupara Games |
| Developer | Mango Factory |
| Platform | Windows |
| Delivery | Steam |
| Release Date | 23 Apr 2026 |
| Genres | Adventure, RPG |
| Languages | English, Spanish - Spain, Japanese, Simplified Chinese |
| Features | Single-player, Steam Achievements, Full controller support, Steam Trading Cards, Custom Volume Controls, Adjustable Difficulty, Save Anytime, Steam Cloud, Family Sharing |
Key Provider Instructions
In order to activate this game, you will require a third-party 'Steam' account. For full details on how to activate please follow this link: https://support.steampowered.com/kb_article.php?ref=5414-TFBN-1352
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.
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.
Feature List
• 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!
Minimum Requirements
- --Windows-- OS: Windows 10 Processor: 5th Gen i5/1st Gen Ryzen Series Memory: 4 GB RAM Graphics: GeForce 900 Series/Radeon RX Series DirectX: Version 12 Storage: 5 GB available space
Recommended Requirements
- --Windows-- OS: Windows 10 Processor: 8th Gen i5/3rd Gen Ryzen Series Memory: 6 GB RAM Graphics: RTX 2000 Series/Radeon Vega Series Storage: 5 GB available space
Legal Notice / EULA
© 2026 Mango Factory LLC. All rights reserved.