
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
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.
so good
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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| 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
Absolutely amazing so far, I can't wait for the future episodes.
jogo muito bom, animações bonitas e uma história coerente
Splendid game :)
this is actually pretty interesting so far. I hope it stays that way.
Gonna give a disclaimer and say that everything in this review is based off of Episode 1 and I may feel different with different episodes Kumitantei: Old-School Slaughter is a VN most clearly inspired by Danganronpa. 16 people trapped, only way to escape is through murder, murderous mascot overseeing things, the works. They also mention other visual novel authors as inspiration in the credits but the Danganronpa influence can be felt the most, especially in terms of visuals. The presentation is pretty good throughout with 2D animated cutscenes and pretty decent VA. Gameplay wise, it's again very similar to Danganronpa. You have Free Time, where you bond with your classmates allowing you to get skills you can use in the trials, and the trials themselves. The trials mainly take the format of Non Stop Debates (called War of Words here) and involves characters talking with no breaks as you try to find the contradiction and shoot it with an evidence card that matches. The War of Words does a pretty good job of emulating the Non Stop Debates of Danganronpa and brings the energy you'd expect. While I did struggle at times, it's also been a minute since I've played a Danganronpa game. You also have versions of Hangman's Gambit (here a decent enough Galaga ripoff), Logic Dive (in the form of a Donkey Kong ripoff) and Closing Arguments (which plays pretty closely how it does in DR). All in all while I do prefer how DR games play over this, it does a good job emulating the formula. There's also a mechanic entirely new to Kumitantei: card battles. Instead of the Rebuttal Showdown or Argument Armamament, here you engage in card battles when you need to do a 1 v 1 with a specific trial member. You have 4 card types with each counteracting the other, highest number wins and lets you gain influence towards your side, after getting the meter completely to your side you win. I'm not gonna lie, this kind of sucks. It's a decent enough idea, but it completely kills the pacing compared to RS or AA, and it doesnt feel like it connects to the rest of the trial in a good way. It feels way too lowkey compared to the rest of the game at least outside of visuals. The game also does a pretty bad job of helping you understand this system as your first introduction to it is a completely automated battle as the game explains everything about it to you. A faster paced version of it also replaces the Panic Talk Action that served as Danganronpa's "boss fights" in the past. It has more energy at least but it still suffers a similar problem. Storywise I don't have a ton to say right now. The characters all seem pretty interesting and I like the central mystery that they're currently trying to setup for later episodes. Episode 1 does have a pretty compelling mystery with a culprit you can understand and even ends in the usual DR tearjerker affair. I hope the rest of the episodes can keep the train going storywise at least. Overall, while I'm not a fan of the card battle system, it by no means ruins the game for me. If you're a Danganronpa fan and want to check out Episode 1 while waiting for 2x2 I recommend it.
Es un buen juego. Pero, solo tiene un defecto. Solo esta el capitulo uno. Pero creo que en octubre, añaden el dos. Pero el resto, la visuales, los personajes, los ost, etc. Son lo mejor del juego. Cómpralo ahora, cuando el juego tenga más capítulos será más caro.
Um dos Melhores Jogos Danganronpa-Like que já Joguei e Mesmo estando no Comecinho (Episódio 1) já Supriu aquele vazio que o Cancelamento de Eden's Garden Deixou. A História Tem MUITO Potencial, e o parte de Terror do Jogo é MUITO bem Construída até aqui. Dublagem tá Fenomenal, o Traço também e as Mecânicas Próprias são ÓTIMAS e Muito bem Balanceadas até Então (Que a Shigure e o Ajima Sobrevivam até o Final, Amém)
First of all: I liked this game, or rather, this first chapter, and therefore I recommend it. However, I feel I should give a complete review, covering both the pros and the cons. Let me start with a disclaimer: I bought the game based purely on trust. The only thing I knew beforehand was the card system, and I had assumed it would be a game inspired by Danganronpa but with different mechanics. If that's what you're expecting, that's not what you'll get. The game is heavily inspired by the black and-white bear: the trial minigame Word of War is literally Danganronpa's Non-Stop Debate, with the same mechanics and no differences. Likewise, the final manga-style sequence where you reconstruct the events is almost identical in both art style and gameplay. These are the two strongest examples of the similarities, but even the Free Time sections are essentially the same. At the same time, the game does try to be something different. For example, Danganronpa's Hangman's Gambit appears here in a different form, where you control a spaceship and shoot the correct letters, essentially an arcade shooter. Personally, I don't enjoy this minigame very much, but then again, I never liked Hangman's Gambit either. On the other hand, the final execution sequence distinguishes itself from Danganronpa, and I appreciated it a lot. It also lasts quite a while, I didn't time it, but I'd estimate between two and three minutes. Most importantly, the game's most unique feature is its card-based combat system (the part I already knew about before buying it). It's an addition with a lot of potential, but it still feels somewhat underdeveloped. The pacing of combat doesn't really sync well with the cards available in your deck, and the player is forced either to memorize or constantly look down at the icon indicating each card's weakness before playing a card. I absolutely love the concept, it's genuinely unique, so I hope it gets improved in future episodes. I also hope to see more original minigames, because at the moment I see the game more as a tribute to Danganronpa with a few deviations here and there, rather than something that truly stands apart. Now, let's talk about the voice acting. Every voice fits its character perfectly, and the voice actors did an excellent job. However, I often noticed that the pacing, the speed at which the characters speak, is extremely slow sometimes. At times it feels more like a stage play than a video game. I could give many examples, but the most obvious one to me is Sanada during his internal monologues (the green dialogues), especially before the trial when all the character sprites appear on screen. Kaguya's voice actress was my favorite, and she's probably the only character whose slow pacing feels completely justified. I also really liked Moichi, Hoshisaki, and Kutsuki. But as I said, I enjoyed everyone's performance, great job, everyone! The story is interesting, although I do have some criticisms regarding the trial itself. The culprit's behavior didn't make much sense to me, or rather, it felt unnecessarily risky. [spoiler] Why would Moichi hide in the closet, risking being discovered? It's important to remember that up until that moment, nobody knew there was going to be an announcement, not even Moichi. As a prosecutor, he would have been even more likely to choose a safer hiding place. He certainly wouldn't have hidden just three meters from the corpse, alerting the others to go into the very room where he was hiding. [/spoiler] Furthermore, the final minigame where you reconstruct the events in manga form doesn't make sense in certain parts, because Sanada somehow knows details that are only revealed later after the trial. The trials don't reach the heights of Danganronpa's best cases, but overall I still enjoyed them. What really intrigued me, however, is the "outside" storyline, the one shown when Sanada falls asleep. The ending left me very curious to see where things are headed. Overall, this first chapter was a lot of fun, and I think it has a great deal of potential. Its biggest challenge going forward will be finding a way to distinguish itself more clearly from the work that inspired it.
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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