
AI-built 90s retro ARPG — tribute to Diablo 1 and Ultima Online. Set against the 1997 Rainz incident. Shifting dungeons, 100k+ gear combos, atmospheric crawler. No GPU, 95 languages. AI is at a turning point — see for yourself what an AI-made game looks like.
Modeled estimate, not a reported figure. How we estimate →
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About
■ About development
A solo development work by a 45-year-old with no programming experience who wrote approximately 120,000 lines of code and 100 achievements in 3 months using only AI.
The only development partner is Anthropic's AI agent "Claude Code." I don't use Unity or Unreal, I created my own custom engine and map editor. There is not a single line of code or specifications written by humans. All 100 Steam achievements are automatically generated by AI.
Subtitles are available in 95 languages and full audio dubbing is available in 70 languages. All translation, dubbing, and quality checks are performed using AI.
■ Story
1997.
A great king was killed by a flame called the Fire Field.
Rainz killed the king.
The world hated him.
However, on the other hand, there were a small number of people who worshiped him as a savior.
As one of the "people of Rainz," you step into the cemetery in the north where the king is buried.
No one who goes down to the basement of the cemetery ever returns.
Is the truth of the king sleeping there? Rainz's sin? Or is it an inherited curse?
Fire Field is a dark fantasy action RPG that takes you deep underground.
■ What you can currently play
In the current version, you can explore up to the 5th floor underground.
Enemies become stronger each time you go down a floor, and a boss awaits you at the deepest level.
Your goal is to equip yourself in the city, advance underground one layer at a time, and survive as you dive deeper.
■ Features
・Dungeon exploration gets more and more tense as you go underground
・Underground structure that changes every time you explore
・More than 100,000 equipment variations, hack and slash elements
・Item system that gives different abilities to each piece of equipment
・Customization and appearance changes for each equipment part
・A system where you become a ghost when you die and wander through the reverberations that remain underground.
・A fragmented story about Rainz, the King, and the Fire Field.
・Rough and cold visual expression with the atmosphere of the 90s in mind
・Battle with the boss waiting in the depths
■ Supported languages
・Subtitles: Supports 95 languages around the world (all translated by AI)
・Audio: Supports full dubbing in 70 languages (all generated by AI)
・Supported platform: Windows
■ About Early Access
Through Early Access, Fire Field aims to further expand its underworld, enemies, and story.
This work is currently being developed primarily as a single-player experience.
As part of our future roadmap, we are planning to implement Steam Deck compatibility, a Mac version, and online co-op play.
■ About Fire Field
Fire Field is a work based on the theme, "People disappear, but the cause remains."
The deeper you go underground, the more you gradually uncover what happened in the past and what the flames left behind.
This is still the beginning of the story. But the flames are already burning.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French*, Italian*, German*, Spanish - Spain*, Indonesian*, Ukrainian*, Dutch*, Greek*, Swedish*, Spanish - Latin America*, Thai* +84 more
Engagement
Hours played at review time, across 29 reviews with recorded playtime.
Reviews
A good old-fashioned game! It's a game you'll get completely absorbed in, losing track of time. I can't wait to play the rest! However, I managed to defeat the final boss without really understanding what was going on, so it would have been even better if it had been a little easier to understand.
まず思うことはAIだけでここまでゲームとして完成できるのかということ。 このままヴァンサバ系でもできそうな感じ。 世界観は非常にいい。 改善してほしいこと 細い通路に罠が二つあるのはきついかな。 インベントリ出していても行動できると嬉しいかな。 最初で言語を選んだら二度目の起動時は選択不要にしてほしいかな。 まだまだ進化していくと思うゲームで期待大です!
ゲームを始めた瞬間、あ、これは私の好む世界観だなと思いました。RPGの経験があまりないため、楽しいのになかなか進めることができなくて、自分に悔しかったです。ゲームからしばらく遠のいていたのですが、このゲームをして、ああ、昔みたいにやり込めたらどんなに楽しいことだろうと思わせてもらいました!迷っている方がいらっしゃいましたら、ぜひ、やってみてください。どうしてこんな町になってしまったのだろう、自分は皆を救う戦士になれるだろうかと、考えるだけでも、楽しく、ダンジョンのアニメが好きな方にもおすすめします! 開発者さま、ありがとうございました。
このゲームはレトロだということで侮ってはいけません。 ついクリアしたくてやってしまう力がこのゲームにはあります。 何もかも快適なゲームが楽しいとは限りません。 世界観が好きな人はぜひ一度プレイしてみてください This game may look retro, but don’t underestimate it. It has a certain pull that makes you want to keep playing until you clear it. A game doesn’t have to be perfectly convenient or modern to be fun. If you like its atmosphere and worldbuilding, I definitely recommend giving it a try.
上からの視点のゲームが苦手だったのですがこのゲームは楽しめました ゲーム制や雰囲気の為なのでしょうがMAXにしても暗い印象です ダンジョンも迷宮感があっていい感じだと思います 自分のレベリングが足りなかったせいもあり死にゲーと化しましたがちゃんと攻略すればかなり遣り込めると思います AIだけでもこんなゲームが作れるんですね
v1.7.1、1時間ほどプレイし一旦中断、再度ロードしたらアイテムが全消失、イベントの進行がリセットされ、レベルが1に戻っていた。ゲーム性は懐かしくもありAIのみで作成したものとは思えない出来で素晴らしいが故に残念でならない。あともう少しコントラストを上げて頂けると嬉しい。視力が悪い自分には少し見難い。今後のアップデートでバグが解消される事を期待。
Extrait du journal de bord de l’Archiviste au sujet de Fire Field durant la période du 13 au 17 mai 2026. Jour 0 : Mercredi 13 mai 2026 C’est dans le courrier de la boîte mail de RPGjeuxvidéo que j’ai eu un premier contact avec Naoki Fujinaga, un Japonais de 45 ans qui m’a indiqué avoir créé un hack’n’slash old-school s’inspirant de Diablo II et d’Ultima Online : Fire Field. Il m’annonçait qu’il n’avait aucune connaissance en programmation au départ, et qu’il avait créé ce jeu en 90 jours avec l’aide de l’IA : La suite ici : https://www.rpgjeuxvideo.com/test/fire-field-apercu-de-lacces-anticipe/
It was fun exploring a dark dungeon filled with enemies and loot. Each of the floors increased in difficulty and it didn't feel too difficult or too easy. I enjoyed the slower pace compared to other ARPGs. Feels more like exploring the unknown rather than destroying an entire ecosystem.
正直、こういうゲームは苦手意識がありいままで触れてきてなかったのですが、その概念が変わるほど完成度も高く時間を忘れて没頭してしまうほどです! まだプレイしている途中ですが、次回 次々回作が出るのであれば必ずプレイしたいです!
i try it but wasn't fun and look like old game and short game , mean you can finish game in 3 Hour cuz in 100 min i fight last boss inside dungeon in 4 or 5 Floor down but i die so not worth buy it
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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