
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
So this is my first review. After reading some other reviews. I really do like the first chapter. I think the characters are fun. But I am with some other people that a little too many of them have antagonistic attributes. I just hope they become a little less so if the main character is not the main culprit moving forward. But two other things a lot of the minigames are kinda boring. The card game most of all. It dosent feel great as a deckbuilder from a person who loved deckbuilders. Its just kinda of rock paper scissors with card and four options. Know what made me give this a postive review is simple. The intergration of dandanronpa and horror. Those parts were the clear highlights of the game. I even have guesses about future events that ill save for when the game is completly out. So devs if youre reading this I hope the futre chapters have more care put into their minigames. The card game has potential but it certainly needs to be find tuned in a way where its not a waiting simulator basically. The best deckbuilders are all about synergy and having the chance for you to win on the spot and your opponet to do the same. More ways to control your draws. Because the most important part of deckbuilders are the cards. The abilties you get from the other students is good but there needs to be more ways to control the main cards used to win. Anyway so looking forward to the next chapters. Dont wait too long. The longer you wait the less of a crowd is waiting.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
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 |
| — |
| — |
| — |
| 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
Even if it iterates from a Danganronpa (it probably started as a fangan), Kumitantei does several mechanics that are interesting and the changes it does are so far much more entertaining than I anticipated. The integration of the mechanics with the cards and several retro references helped make more boring mechanics from the original Danganronpa much more palatable while still keeping that mix between the retro aspect (a lot of things reference to the 80s, the style of the characters leans a bit into Rumiko Takahashi's art, and also the music I feel is quite more chaotic and eerie as the Danganronpa one, instead of opting for a much more chill vibe like the original one was). It manages to be something different even if the original vibe is there, which is a success, in my opinion.
[h3] 26.7現在、第一章で終わります(未完成品) [/h3] アーリーアクセスではなく製品として販売されてますが、序盤の序盤で終わりますので注意が必要です。 新しいエピソードが追加される度に価格が上昇するようなので商品説明を見て判断しましょう。 今後、残りのエピソードに対して”そもそも制作されるのか””販売に関しての対応が変わらないのか”未確定ですので商品未満の評価になります。 [h3] 良かったところ [/h3] ・ダンガンロンパっぽさ ストーリーからからUIから演出からダンガンロンパの[strike]パクリ[/strike]リスペクトです。ダンガンロンパっぽいインディーゲームがやりたい人にはおすすめです。 ・様々なキャラクター 本家のように変なキャラクターが多くて楽しい。電波受信しまくってるヤツもいるし、そもそもデスゲームにゾンビとかいて大丈夫なの?笑。主人公が常識人側なのでプレイヤーのリアクションと同調しやすいのも良い。 ・カードバトル 本作の大きな独自要素としてのカードバトル。結構運に左右されるけど、効率的な手を考えてやればコンボも繋げられて楽しいし、作品の良いアクセントになっている。 ・いわゆるオシオキについて 始まったときは「おお来た来た」ってなったし、アイデアと工夫でちゃんとオシオキになってる。インディーだけど頑張って作ってるのは感じるし迫力も十分。どんどんオシオキされて欲しい。 ・絶望感 閉鎖された空間でパニックになってるキャラクター同士の会話や主人公の心境で今置かれてる状況の酷さがひしひしと伝わってくるし、ムービーで世界の状況もおかしくなってるように示唆されてて、強い絶望感が感じられるようになってるのは良いね。 [h3] 気になったところ [/h3] ・上下視点操作の反転ができない 自己視点で探索するときに、上下の視点移動スティック操作を反転するように設定できない。大手の作品では基本設定なので、それは対応して欲しい。 ・探索が少し面倒 視点内の調べる対象をコマンドで可視化できるのはすごくいいんだけど、話を進めるために調べる場所が示されないので、結局全ての場所に移動して調査しなければならないのが面倒。ファミコンの総当たりアドベンチャーじゃないんだから、そこはユーザーフレンドリーにしてもいいのではないか。 ・カードバトルのルール 基本がじゃんけんなのはわかるけど、コンボとか応用の部分が分かりづらい。最初に説明するだけで、ゲーム内で説明も見つからなかったし、カードバトル中にヘルプコマンドを入れて詳細な説明を見られるようにした方が楽しめると思う。 [h3] 悪かったところ [/h3] ・キャラクターの見た目 女性キャラがあんまり可愛くない(主人公が一番いいかも)。媚びすぎる必要は無いけど、せっかくたくさんキャラがいるんだからもっと振り切って欲しかった。 男性キャラが女みたいなのが多い。女性キャラとは反対でなんでこんな媚びてるのかわからない。 正直、キャラの見た目では買わないと思うくらい魅力が無い。適当な理由を考えて描きなおした方がいいと思う。 ・翻訳が良くない。 テキスト量も多いし、AI翻訳かな?日常的に使わない言い回しや単語がところどころ見られるせいで内容が理解しにくい。日本語訳に限った話だけど、言葉選びが日本人の感覚じゃない。 ストーリーがそんなだから没入感が薄れるし、裁判パートでも翻訳が障害になってゲーム外の部分で難易度が上がっちゃってるのは面白くない。 ちゃんとした翻訳家に任せてる作品と比べると出来が悪い評価になるのは当たり前かな。 [h3] 総評 [/h3] 雰囲気はいいんだけど、翻訳とキャラとシステムに癖があるインディーダンガンロンパです。 ダンガンロンパ好きなら楽しめるかと思いますけど、ミステリーを求めてる人には楽しめないところが結構出てくるかもしれません。
ON EVERYONE SOUL WE ARE CRACKING MOICHIRO.
Gen a good start to the game. Appears to be going into some actually interesting themes about imperial Japan. Minigames are a bit clunky control wise but are manageable. Excited to see where this goes.
Je n'avais pas ressenti ce genre de claustrophobie angoissante depuis ma première partie sur Danganronpa 1 et Your Turn To Die, ça m'a rappeler tant de souvenirs. Le jeu est très réussi, j'ai vraiment été choqué du voice acting à certains moments mais aussi de la réalisation et de la puissance des cinématiques dans ce jeu. Le système de free time est une petite amélioration de celui d'un danganronpa, y a pleins d'interactions à droite à gauche pour augmenter son affinité avec les persos sans avoir besoin de gaspiller 1 free time avec eux et j'adore ce principe, ça donne beaucoup plus de chances d'interagir avec un max de personnes avant leurs morts. Le système de cadeau est également une grande amélioration, j'aimais vraiment pas le système de doublons dans les jeux de base mais la c'est beaucoup plus fair je trouve l'aléatoire est moins présent même si toujours existant et c'est ok. J'ai vraiment beaucoup d'espoirs pour ce jeu dans le futur car pour un prologue et un premier chapitre, la barre est très haute. Je n'arrive toujours pas à croire qu'on ai le droit à des séquences entièrement animé hors éxecution, pour les moments importants c'est juste phénoménal ça nous pousse d'avantage dedans. Les OST aussi comment ne pas en parler, j'ai personnellement quelques favorites que je vais écouter encore et encore mais la majorité sont très cool, certaines m'ont donnés des frissons et surtout une en particulière ceux qui savent savent ahah. Les modes des jeux des procès sont très créatif, je suis très biaisé car j'adore les bornes d'arcade et je suis littéralement un grand fan de Sega mais voila ahah. Le système de combat m'a paru un peu confus au début je vais être honnête, mais une fois qu'on la en main ça devient beaucoup plus intéressant. Le deckbuilding avec les passifs des personnages m'ont un peu rappeler Library Of Ruina ce qui est très positif comme comparaison en tout cas pour moi ahah. Bref, je suis vraiment pas fais pour écrire des évaluations de jeux c'est ma première sérieuse mais j'espère donner envie à certains dans la commu Danganronpa française de tester car le jeu vaut vraiment le coup. J'avais quelques défauts à citer qui venaient du Prologue mais c'est ouf comment tout a été corrigé au chapitre 1 donc au final j'ai rien à dire ahah. Merci pour l'amour, le travail et l'ambition de ce projet et merci Steam de m'avoir recommandé ce jeu aussi ahah. Je suivrai de tout près chaque avancé du jeu, surtout prenez votre temps et amusez vous pour faire la meilleure version du projet possible <3
LOVED the story, such a fun and interesting way to stray from the beaten path of dangan games. so invested in the characters and the plot, CANNOT wait for episode 2!
At first, I was not sure if I was fully onboard with Kumitantei. but after finishing the first chapter, I'd say I'm down to play it to the end. It's got my foot through the door, at least. To say Kumitantei is Danganronpa-inspired game is to be a comedian. This game is wearing DR's skin, using DR's social security number and trying to pass itself off as DR in front of DR's relatives. It's copying the DR formula down to an exact science. They say imitation is the highest form of flattery, but ♥♥♥♥♥♥♥, Kumitantei. I'm not complaining. I can never say no to a competently done Danganronpa-esque murder nocturne, so here I am. If I have to give some thoughts, it would be these: - The cast did not click for me at first. They are ESPECIALLY abrasive for a DR-esque cast. In DR and other DR-inspired games, the cast can at least talk to each other normally and introduce themselves on first contact; the Kumitantei cast can do no such thing. It's like they were designed to be as unlikable as possible. The problem isn't even that they don't have any chemistry with one another; the problem is that half of them are just unpleasant ♥♥♥♥♥♥♥♥ to be around. I don't intrinsically hate this setup, however. ANY cast can work if the writers know how to use them. It's an interesting cast, to say the least, and starting them at their lowest point allows them to grow and develop relationships in an organic manner throughout the story. Another thing that made them not click with me was the artstyle. They're supposed to be inspired by Takahashi Rumiko's artstyle from the 80s, with some looking like they came straight out of Urusei Yatsura. Unfortunately, this is not the artstyle I would choose for a horror thriller murder mystery game. The Dangan style (thick lines, big eyes, concentric circle pupils, expressive faces, vibrant colors) is so ingrained into my perception of what these games should look like that I needed some time to adjust. Fortunately, they both grew on me - the artstyle and the characters. By the end of chapter 1, I'm still not completely sold on them, but I can see spending another 20 to 30 hours with them, at least. I'm excited to see how they're handled in the rest of the chapters. - The setting for now is a bit basic and on the nose. It's literally just DR1 (and V3). Don't fix what's not broken, I guess, but I would have liked something with a bit more flair. It's not a dealbreaker, at least, since the important thing is how they'll utilize this tried and true setting in the remainder of the story, and I'm excited to see that. - I was not expecting the music to be THIS good. It was the highlight of the whole experience. It's less psycho-pop like DR, and more gritty, noisy and horrorcore? I like it a lot. It sets the tone of this game apart from any DR game. - Case 1 was interesting. Though the overall experience was good, something was off with the pacing: it's only half the length of an average Danganronpa case. As a result, the last leg of the trial really raced towards the finish line, and I can't help but feel like we skipped quite a few steps in between to clinch the solution. It was still enjoyable, though.
I think this game is great, and it's definitely scratching my itch while we lead up to 2x2. I enjoyed the cast (despite how one-dimensional some of them are) and while I was NOT at all a fan of (Ch1 Killer Spoiler) [spoiler]Moichiro, his ending speech still had an impact on me since I mostly took it in the eyes of Himari[/spoiler]. That being said, the game at the end of the trial where you had to endlessly combo took me way too long to beat and I hated the space invaders game because I couldn't go back to look at my evidence, so if I didn't immediately know what conspiracy theorist said I'd have to game over to go look at the evidence after restarting. I like it
This game is incredibly charming with its cast. Yes some will take you a bit to warm up to but believe me they're worth your time. The premise is as you'd expect, but it's only the beginning and what we've seen makes me hopeful for the rest. It's definitely very in line with danganronpa, and the class trials reflect that, with this game managing to make both a vn with flying words and a card battler somehow feel fast-paced. The card battler part could use some more fluff, but what there is is already fun, and the devlogs let us know they will already be adding new cards for us to get in the next episode's update coming out this november. The other minigames are pretty cute. The drama is there and I'm in love with it, that's all I can say really. Some aspects of the reasoning in the trial honestly eluded me, as in I'm not sure how we started talking about X or Y bit in the conversation, or why should I present evidence A to refute that theory, but overall the flow is still smooth so not too big of a deal, and after giving it time it grew on me. Besides this always happens lol I am absolutely in love with the soundtrack. It's so off-putting yet appealing I am obsessed with it, same with the voice acting, it's just so damn good all around. Please make more of this, maybe 5 chapters more, and we'll all be very happy absolutes !
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
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $4.1M | 23.3K | 83% | $11.99 | |
| $410.7K | 5.9K | 98% | $1.99 | |
| $132.6K | 498 | 57% | $7.99 | |
| $13.1K | 253 | 75% | $3.99 | |
| $2.4K | 12 | 100% | $7.99 | |
| — | 0 | — | — |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $127.1K | 301 | 75% | $19.99 | |
| $127.1K | 689 | 62% | $6.99 | |
| $127.1K | 476 | 65% | $14.99 | |
| $127K | 657 | 97% | $9.99 | |
| $127.1K | 294 | 76% | $19.99 | |
| $127.2K | 827 | 94% | $9.99 |