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Product Details
Trapped inside a decaying bunker in an alternate 1989, you must uncover gruesome murder plots and face off against your classmates in life-or-death clinical trials. Kumitantei: Old-School Slaughter is an episodic murder-mystery ADV card-battler that blends retro anime analog horror with intense deckbuilding debates.
Grab your Kumitantei: Old-School Slaughter Steam key on LootBar to dive straight into the mystery. Enjoy discounted prices, secure payments, and instant activation so you can build your deck, interrogate suspects, and fight for survival without missing a beat.
Kumitantei: Old-School Slaughter Steam key Details
| Game | Kumitantei: Old-School Slaughter |
|---|---|
| Platform | Steam |
| Supported Devices | PC |
| Key Type | 15-character digital activation code |
| Delivery Time | Instant delivery |
| Activation Method | 1. Instant activation on LootBar 2. Redeem manually on the Steam store |
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.
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!
Why Buy Kumitantei: Old-School Slaughter Steam key on LootBar?
- Exclusive Discounts. Save more on your gaming purchases with competitive pricing that easily beats standard digital storefronts.
- 100% Secure Checkout. Shop with complete peace of mind thanks to bank-level data encryption and over 60 trusted global payment options.
- Secure & Instant Delivery. Receive your key and start playing in minutes, with the option to use LootBar Instant Activate for an even safer and more convenient experience than manual entry.
- Activation Success Guaranteed. Every code sold is 100% genuine and fully functional, supported by a full refund guarantee if your key fails to activate.
- 24/7 Responsive Support. True to our promise of "Reputation First! Customers Foremost!", our support team is available around the clock to assist you.
How to Buy and Activate Kumitantei: Old-School Slaughter Steam key on LootBar?
- Go to LootBar and log in (register first if you have no account).
- Click "Game keys" in the top menu and find "Kumitantei: Old-School Slaughter" (or search it directly).
- Pick your preferred edition and click "Buy Now".
- Choose a payment method and complete payment.
- Activate your game — optionally bind your Steam account and use LootBar Instant Activate to get the game activated straight into your library.
Note: If you prefer not to bind Steam, you will receive a digital key that you can redeem yourself in the Steam store.
System Requirements
FAQ
How to activate Kumitantei: Old-School Slaughter key on Steam?
Your key arrives by email or LootBar system Notification after purchase. Launch Steam, head to Games, then Activate a Product on Steam... The rest shows up on screen. You can also activate through a browser by visiting Steam's key activation page. For hands-free activation, use LootBar self-activate service.
Is this Kumitantei: Old-School Slaughter key region locked?
Yes, this key is region locked. Check the game description for which regions work.
Which platforms does Kumitantei: Old-School Slaughter support?
PC
Does Kumitantei: Old-School Slaughter support cross-platform compatibility?
No, Kumitantei: Old-School Slaughter does not support cross-play. The Steam page lists it as single-player only with no online or multiplayer features at present. No cross-platform lobbies or progression are available; cross-play restrictions are not applicable.
Can Kumitantei: Old-School Slaughter saves move between platforms?
No cross-save or cross-progression across platforms. Steam Cloud works on PC, syncing progress between computers on the same account. Cross-platform transfer isn't listed or supported.
Can you play Kumitantei: Old-School Slaughter with other players?
Kumitantei: Old-School Slaughter is single-player only. There's no online co-op or PvP — you play solo from start to finish. Steam Achievements and Cloud are both supported.
Are Kumitantei: Old-School Slaughter keys authorized?
Yes. We get the keys straight from authorized distributors — nothing else.
Which countries and regions is Kumitantei: Old-School Slaughter most popular in?
United States, China, Japan
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