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.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.29/day in the week to Sep 4 → 0.86/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,402 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
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.
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!
Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Sums Steam only; GOG, Epic publish no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $14.99 | 366reviews | 92% | — | $127.1K |
| $11.99−20% | 4ratings | 86% | — | not modelled | |
Engagement
Reviews
Themes across 85 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
I enjoyed playing the first episode of this game
I was very happy to find out that this exists. Looking forward to the rest of the episodes and other content
remove those ♥♥♥♥♥♥ boring card minigames from the concept lmao
Media
Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, Spanish - Spain, Japanese, Simplified Chinese*languages with full audio support
| $14.99 |
| — |
| — |
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| not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Hours played at review time, across 85 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Likely objectively bad, the character designs and setting are a worse version of Danganronpa's by a mile while obviously being inspired by specific characters, and the card system, which admittedly is something I already dislike as a concept, felt like slightly more elaborate Uno, in which I got through each encounter without the slightest bit of trouble while not really trying or caring. It could not exist and I think the game would be better for it. That being said, the voice acting was surprisingly good for what I assume was mostly random people online, the cutscenes despite seeming amateurish art-wise did not seem low effort, and most importantly the murder mystery of the murder mystery game was solid and emotional and I wanted to immediately continue to the next chapter. I am surprised it found a way to make hangman's gambit worse too.
I LOVE LOVE LOVEDDD THIS I had such a great time playing through it with my friends and the writing was amazing I didn't expect it to get so emotional. The music is amazing, the cutscenes are amazing the art is amazing, the voice acting is amazing, the story and the character writing is all AMAZING. Everything was absolutely ASTONISHING im not even glazing rn but this is probably my favourite game I've played all year so far and I cannot wait for more chapters I will be playing the MOMENT they release!! <3 WOULD RECCOMEND!!
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
Related
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| — | 0 | — | — |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $127.1K | 301 | 75% | $19.99 | |
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| $127.1K | 476 | 65% | $14.99 | |
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