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The story
Yuji Horii, known for Dragon Quest and The Portopia Serial Murder Case, has released a free browser-based mystery adventure game called Koshitsu no Komiya (Komiya in the Interrogation Room), made with the help of AI. Horii himself revealed it took “about 30 minutes” to make, expressing amazement that you can produce a game just by directing an AI — no drawing or programming skills required. When the story was reposted to 5ch, reactions split between people welcoming a veteran creator embracing AI and pushback from the “anti-AI” crowd, who object to training data being used without permission and raise copyright concerns — sparking a debate over just how far AI use should be allowed to go.
Dragon Quest and Portopia creator Yuji Horii releases free AI-assisted game Koshitsu no Komiya — a mystery adventure made in “about 30 minutes”
Horii’s mystery adventure game Koshitsu no Komiya can be played for free in your browser.
Back when I made The Portopia Serial Murder Case on PC, I came up with the story myself, drew the art myself, and programmed it myself — I made the whole game alone. And now, with AI, you don’t need to draw or program at all; just by giving instructions to the AI, you can make a decent game all by yourself. It’s honestly astonishing…
Source: famitsu.com / Original article here
What people said
People are gradually losing their fear of the anti-AI crowd.
That whole scene was never anything but a dumping ground anyway.
McDonald's (Japan) jumped on image generation early and got bashed for it by those people, but they just ignored it completely, and nothing's changed since.
What's wrong with having an insanely capable employee working for you?
That's just jealousy talking.
If you prepare your own training material yourself,
nobody's going to complain.
People only say something because it's scraping up other people's stuff without permission.
AI-made YouTube content —
the art style's starting to look all the same lol
Whether it counts as copyright infringement is murky, but if the source is blatantly obvious,
there's still a risk of getting sued.
but instead he's using it himself and talking about it openly — that's impressive.
At the end of the day, the ones complaining are the people who've never actually made anything.
Credit card companies have the right to choose who they do business with too, you know.
Such an incoherent community.
Sounds like you've never actually used a drawing tool.
It just comes with preset brushes, that's all.
If anything, digital drawing tools are what wiped out art supply stores.
Same thing, really.
Otaku artists always twist the interpretation however's convenient for them.
Anti-AI or pro-AI, the moment you're ripping off someone else's work to make money off it, you've already lost — there's no argument to be had.
That's not what I'm talking about.
I'm saying: pick a side, approve of it or don't, make up your mind.
Because doujin porn and AI are doing the exact same thing.
I'm hoping that a big name like Horii using AI will help dissolve that instinctive aversion people have toward it.
Knowing how this goes, they'll end up pricing it so high you'd have been better off just hiring a person.
Re: #83
There's no way something like this should be allowed.
Don't underestimate humans.
Doesn't everyone except the US end up losing big from this?
The world gets more convenient — where's the downside in that?
It's already confirmed for release on PS5, smartphone, and PC, and it's been covered by Famitsu 😯
Sorry, but it's already been concluded that even Palworld can't win on copyright grounds 😉
https://www.famitsu.com/article/202610/90523
That's just an algorithm — sure, people call it "AI," but still.
By that logic, web writers and news articles are all thieves too.
If you want to convince people, at the very least go get permission first.
Just like you don't need permission from the artist whose work you reference when practicing drawing, you don't need permission for AI training either.
Background and Points of Contention
Yuji Horii is the creator of Dragon Quest, and is also known for having single-handedly developed the PC adventure game The Portopia Serial Murder Case in 1983. In an interview with Famitsu, Horii said he made the newly released Koshitsu no Komiya by leaving the text and progression up to AI, finishing it in “about 30 minutes” — a different mechanism from image-generating AI models trained on huge volumes of images. Meanwhile, the movement known in Japan as “anti-AI” largely traces back to a controversy that spread starting around 2022, in which image-generation AI was said to have used illustrators’ work for training without their permission. In the thread, this distinction went largely unaddressed, and the discussion instead played out as a broader debate over whether AI use in game development should be accepted at all. Part of why opinions keep talking past each other is the legal complexity involved: the use of training data itself sits in a copyright gray area, and infringement only becomes a clear issue when the generated output closely resembles an existing work.
*This article is excerpted and summarized from the 5ch (Nandemo Jikkyō G) thread “[Sad News] Yuji Horii Makes a Game With AI and Anti-AI People Totally Lose It wwwwwwwwwwww wwwwwwwwwwww.”
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