
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 2,400 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 got this game on a whim having never played Danganrompa before. I was surprised to find that it's an unfinished game. It stops after chapter 1. This is actually an early access game but the developers refuse to use the early access system and give dubious reasons as for why. I think the reason is because people like me will buy it without realizing it's a work in progress which is pretty deceptive. No progress has been made in months btw. On it's own the game isn't that bad except for the repetitive sound bites that get old fast. One of the main characters says "FIND IT!" over and over in a really pushy way even with it's totally nonsensical to do so. I would wring the little bastards neck to shut him up if I could. It was also stupid easy to predict who the bad guy was. But I went back and played Danganrompa and I was surprised again to find that this game is a total rip off of it even down to the characters being almost exactly alike. What's even more surprising to me is how so many people praise the developers for this blatant rip off copy paste clone of a game. What is wrong with you people? These developers have no creativity and can not make a unique game and have to piggyback off the work and reputation of others. I find the entire project baffling and not in a good way.
Media

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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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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
While it's obviously inspired heavily by Danganronpa, it's incredibly derivative and dull. This really isn't the kind of product you ask for people to pay for, it's basically a fan game.
If Capcom U.S.A. Inc. v. Data East Corp (the lawsuit) had gone in favor of Capcom, this game would not exist. They said it was "inspired" by Danganronpa. Bollocks. This is a note-for-note RIP OFF. Several characters are recognizably there, just with a few fundamental changes to keep Spike Chunsoft's lawyers at bay. There are clear analogues to Monokuma (I could swear they even got the same VA), the Ultimates, the Class Trial, and the executions. They have something that's Hangman's Gambit But Worse. They have the S-Link thing. A lot of the music is very similar in composition. The "make a comic" thing at the end of the trial is so identical to the ones in DR that they don't even give you instructions on how to do it. The fact that they put Kodaka in the Special Thanks SECOND after Rumiko Takahashi is quite frankly taking the p*ss, HAVING SAID ALL THAT, I enjoyed it. What it does differently is generally done better. They didn't have to set it in Japan or in the 1980s, because the developers are clearly from neither. It's painted-over Danganronpa, but the paint is mostly pretty.
I've had a certain itch while waiting for danganronpa 2x2. This fills this void perfectly right now. By far the most high quality danganronpa-like game on the market right now. It does feel too danganronpa though, but that's why I bought the game in the first place. 8/10. I see a lot of potential in this. I love the card battling mechanic.
dang it grandpa
After the sad downfall of Eden garden, i have to say this is honestly one of the best dangan inspired games i have played in a long time, the cast is so loveable they have really decent motives and personalities that makes you attached to them and it leaves you questioning who will die, the artstyle and music is very well done as well, the voice acting is something i was shocked by the sheer effort and love they put into their roles is very amazing and sold the immersion for me, i can't wait for the next episodes i highly recommend any danganronpa lovers to check this out its worth the 15 for just the first ep alone.
People say that this is a knockoff danganronpa and shouldn't even be considered as an original game and not a fan-game, and mostly I do agree with it 16 Ultimates (Absolutes in KT:OSS but it's the same thing), Monokuma (in this it's Nyanus but it's quite literally monokuma disguised as a cat), Class trials, the execution, and some other things But to say that it's a knockoff danganronpa game is unbelieveable to me, and I might just be biased but this game is WAY better then danganronpa could ever be I love most of the characters and I can tell that I WILL cry once they die or get executed, and they actually have depth unlike most of danganronpa characters Having different minigames is cool aswell, I really love the card battle's (even tho I would say that they need some slight changes). The space invaders is... not mine really? It's quite confusing but I can see the potentional in it and I hope they rework it Merlite is nice, but I feel it needs something else to it or else it will just be really boring I personally like Nyanus and Nyanusofu way more then Monokuma as they're funnier to me, but that's just a personal opinion (and they work really well together) The first trial was REALLY huge and I did have to use my pretty little head from time to time, and the plottwist in the end was DEVESTATING I also really like the card battle boss, it should be changed a little bit though as it's possible to just get the same coloured card the whole time and not having to change colors at all And the execution was spot on, probably one of my most favorite executions in any danganronpa styled game In the end: It is quite obvious that this game is very familiar to danganronpa, but I think it's allowed to say that they are trying to make a game like danganronpa while not trying to BE a danganronpa game (if that makes sense) what I think has to happen is the rework of the minigames, not exactly remove them, but instead rework them slightly to work better and be more fun I LOVE the OST and there are some hidden gems in it, I hope to hear more of it in the future!! I send all my love out to everyone developing the game and I can't wait for chapter 2 PS: pls dont turn out like PJ:EG <3
I originally dismissed this game as a Danganronpa knock-off, while it's true that this game shares many similarities with the original series, there are several choices made in the gameplay loop and the first chapter that help to set Kumitantei apart. After the first chapter, I had to lay on the ground and just think about what I had witnessed. The storytelling is immaculate and I cannot wait for Chapter 2 and onwards to come out. Do yourself a favor and buy this game now while it is still pretty inexpensive.
ダンガンロンパのオマージュということだけどカードゲーム以外はダンガンロンパとほぼ同じシステム 呼称を変えてもやってることはまんま同じ オマージュって言えば何でも許されるのかと思ってしまう ゲームシステムとしては元のダンガンロンパが面白いのでハズレではない 現在1話だけの配信なのでキャラが深堀されていないせいか一部のキャラがただ不快でしかない 今後に期待はするが、このゲームが面白いからというよりはダンガンロンパのシステムでそれなりのキャラとストーリーが展開されるなら今後もハズレではないからという理由でしかない
Give It a try If you really love the Danganronpa series or even a Murder Mystery/Social Deduction Single Player with characters that have their own personalities
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.
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