Buy Kumitantei: Old-School Slaughter PC

Kumitantei: Old-School Slaughter is free to play! Download it on Steam and start playing instantly.

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About Kumitantei: Old-School Slaughter

Kumitantei: Old-School Slaughter - about the game
Survival hinges on sharp wits in Kumitantei: Old-School Slaughter, an episodic murder-mystery ADV cardbattler blending retro anime analog horror with a deadly killing game. Sixteen elite Absolute Students awaken in a decaying 1989 Empire of Japan bunker for a kill-or-be-killed Apathy Experiment. Deckbuilding and detective skills drive survival through bonding with classmates, investigating grisly crime scenes, and dominating Clinical Trials inspired by Ace Attorney and Danganronpa. Players bond to gain powerful debate cards, gather evidence for trials that end in bloodshed, and build combos from bunker finds. Retro arcade riffs test old-school skills amid the suspenseful narrative. This creepy-cute indie action RPG adventure suits fans of visual novels, detective games, and deep narrative deckbuilders.

Is survival in the cards?

Kumitanteiā„¢: Old-School SlaughterĀ 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, Kumitanteiā„¢ 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!

Interface:
EnglishSpanish - SpainJapaneseSimplified Chinese
Audio:
English
Subtitles:
EnglishSpanish - SpainJapaneseSimplified Chinese

Age rating

Unavailable

Minimum:

  • 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:

  • 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
Historical low
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FAQ

8 questions

Before you start looking for a cheap Kumitantei: Old-School Slaughter key, check the essentials. Developed by Mango Factory LLC.. Published by Mango Factory LLC.. PC released date: Coming Soon. Genres: Action, Indie, RPG, Adventure. Categories: Family Sharing, Single-player, Steam Achievements, Full controller support.

Q

Where to buy a cheap Kumitantei: Old-School Slaughter Steam key?

Kumitantei: Old-School Slaughter is free to play! Download it on Steam and start playing instantly.

Kumitantei: Old-School Slaughter is completely free on Steam. No purchase needed - just download and play. If you are looking for premium DLC or in-game items, check the offers table above.

Our price tracker covers both official retailers and key marketplaces, so you can find Kumitantei: Old-School Slaughter on sale even outside seasonal promotions. We currently detect 0 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Kumitantei: Old-School Slaughter is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Kumitantei: Old-School Slaughter has an official page on the Steam Store, but we currently don't track any third-party offers with Steam DRM. Check back later or set a price alert.

Not at this time. Valve marks Kumitantei: Old-School Slaughter as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

Kumitantei: Old-School Slaughter does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Kumitantei: Old-School Slaughter deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

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