
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 →
Media

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
It's kind of impressive that Claude Code can make a clone of Diablo 1 that isn't the worst Diablolike in my Steam game list, in the "it's kind of impressive that you taught an elephant to tap-dance" way. But much like the proverbial tap-dancing elephant, it's also not very good, though I'm not entirely sure that's the point. Anyway it's pretty basic and I completed it, even clearing basically all of each map, in under 2 hours. The pathfinding around terrain obstacles is also Bad, which made me think I was softlocked at one point, unable to pass between a door and the back side of a staircase to reach the next level down, until I found the one tiny area where I could walk through. Likewise, there were some issues with visibility with enemies occasionally flickering out of existence because you stepped around a corner that the game thought was much more real than the graphics depicted. Oh, there's a cool feature where you can rotate items in your inventory by pressing R while holding them, though. It's sort of funny that this isn't in any other inventory tetris game that comes to mind, but is in the vibecoded one... Anyway, as of v1.7.0 it's not recommended except for curiosity about what a fully vibecoded game is like to play.
This is such an easy recommendation. I usually dislike A.I. projects by default but in this case you can feel the love almost in every step of the way. Presentation - dark and gritty and old-school. Gameplay - more slow-paced than typical ARPG's, rewarding exploration. Mechanisms - again on the simpler side but very well thought and done. Also the dev is closer to my age (middle-aged/old guy) and without coding experience which makes it even more impressive in my eyes! The game plays and feel closer to D1 than D4 which is good. Also feels addictive once everyting clicks. Hope this goes well and see more of this type of old-school ARPG's - like Tower of kalemonvo.
First, please understand that this review uses a translation tool to translate from Japanese to English, so there may be some unclear expressions. My initial impression was that the quality is unbelievable for a game created in three months by someone with no programming experience. Everything, from the voice acting of the characters and the protagonist's controls to the enemy movements and map design, felt seamlessly crafted. I've only played for about three hours, but I've only reached the second of the five underground floors. I was incredibly satisfied with the gameplay, especially considering it's an early access title. I'm looking forward to seeing how the underground floors increase and how various elements are added. I recommend this game to anyone who likes dark fantasy or action RPGs.
This feels like the beginning of something with real potential. What hit me almost immediately was a sense of rediscovering the core appeal of loot-driven dungeon crawling. Killing enemies, finding gear, and slowly becoming stronger — the foundation is already here. More importantly, the game understands the emotional loop that makes ARPGs so addictive. Finding unidentified gear with different rarities and unique properties, then finally identifying it and wondering *“What did I just get?”* brought me back to the feeling I had when I first played Diablo years ago. That excitement — comparing drops, chasing upgrades, imagining new builds — already exists here. It doesn’t just copy Diablo’s surface-level aesthetics. It captures the same core appeal that made early Diablo memorable: anticipation, progression, experimentation, and the constant feeling that the next drop could completely change your build. The dark atmosphere also works really well. There’s a strong sense of tension and immersion throughout the experience, and it already has that “one more run” energy that good ARPGs need. What excites me the most is the potential. As more spells, gear effects, enemy types, and build variety get added, this could evolve into something genuinely special. You can already feel the framework of a game with a lot of long-term potential. It’s still rough around the edges in places, but honestly, that’s part of what makes this exciting. Even in its current state, it already feels like a game that understands why people fall in love with dungeon crawlers in the first place. I’m genuinely excited to see where it goes from here.
I've been following this game for some time and the developer is extremely dedicated. The gameplay is similar to other ARPG Dungeon Crawlers. You go into the dungeon, kill monsters, level up and collect better loot. The game also has some really interesting lore and worldbuilding. It's also subtitled in 90+ languages, fully dubbed in many of them and has very little system requirements, so it can practically run on any PC. It's well worth checking out and supporting.
無知識でAi生成で一人で作ったゲームとしての第一歩として、未来のあることだと思うので期待を込めてレビューしました。この先もこの調子で頑張って欲しいです
昔懐かしい感じで内容も面白い 敵の強さも下の階層に行くごとに強くなっていき、程良い感じ アイテムを使って装備のステータスを調べるシステムもよい やり込める要素が多い点は非常に良いと思う 個人的に改善してほしい点は NPCとの会話がスクロールな為スキップすると内容がわからない イベント発生時のスキップがエンターキーなのがスペースだと押しやすい ポーションインベントリを少なくして魔法を入れれるようにしてほしい ゲーム自体は非常に面白く、設定などもいいと思う 子供のころにやったウルティマを思い出せて懐かしい気持ちになりました 今後のアプデに期待しています
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。
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!
Related
Related
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.
Related
| Demon Strikes Back | $7.9K | 53 | 66% | $7.99 |
| Hotdog Runner | $7.9K | 256 | 99% | $1.99 |
| Factory Balls | $7.9K | 152 | 99% | $3.99 |
| Sandy's Great Escape | $7.9K | 51 | 94% | $9.99 |
| Seek Etyliv | $7.9K | 68 | 81% | $5.19 |
| Match Village | $7.9K | 71 | 83% | $3.99 |
Related
| Mount & Blade II: Bannerlord | $309.8M | 294.2K | 88% | $49.99 |
| Palworld | $279.6M | 452.3K | 94% | $29.99 |
| ARK: Survival Evolved | $92.3M | 773.6K | 83% | $14.99 |
| ARK: Survival Ascended | $79.3M | 113.8K | 60% | $44.99 |
| The Isle | $60.1M | 116.9K | 80% | $19.99 |
| Valheim | $54.1M | 538.6K | 94% | $9.99 |