狐火かぐら
A 3D vertical-scrolling bullet-hell shooter starring an apprentice fox shrine maiden, with three yokai bosses and spell cards. The README says Claude Code made it.
Official site tanuu5.github.io, verified Nov 3, 2026. Linked as the play address (“PLAY” / “Play in your browser”) from the developer's own GitHub repository README (tanuu5/foxfire-kagura); hosted on the developer's GitHub Pages.
Rights holder / original work: Clawd, the Claude Code mascot (Anthropic)
The extra stage “Terminal in the Night Sky” features Clawd, the mascot of Anthropic's Claude Code, as an opponent. The README calls the game an unofficial fan work not affiliated with or endorsed by Anthropic, excludes Clawd's design and the code that builds the Clawd model from the MIT licence, and says the repository grants no rights to Clawd or to the Claude name. No source shows permission from Anthropic. The main game's characters are the developer's own. (GitHub)
VibeGameDB lists this game only to document that it was made with AI coding tools. We do not host it, we do not represent the rights holder, and listing it does not mean it is licensed.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — official siteBrowserReleasedFree
Runs in a desktop browser. No download.
Browser (no download) · Official link verified Nov 3, 2026.
About 狐火かぐら
狐火かぐら (FOXFIRE KAGURA) is a free 3D vertical-scrolling bullet-hell shooter for the browser. On a harvest-moon night when the moon refuses to rise, Inaho, an apprentice fox shrine maiden, takes to the sky over a thousand torii gates at dusk, a bamboo-grove river with floating lanterns and a moon shrine above a sea of clouds, to face three bosses: a tanuki, a two-tailed nekomata and a moon-rabbit princess, with 14 spell cards between them. Boss conversations use large 3D portraits, and declaring a spell card triggers a cut-in. Your hitbox is a small dot shown in focus mode; grazing bullets scores points, bombs clear the screen, and capturing a spell card without being hit or bombing earns a bonus. There are four difficulty levels, stage practice, a Music Room for every song you have heard, a colour-vision assist setting, and an extra stage, “Terminal in the Night Sky”, against Clawd, the mascot of Anthropic's Claude Code. Characters, backgrounds, bullets, music and sound effects are all generated in code, with no image or audio files. The README credits planning and direction to the developer, たぬ (tanuu5), and development to Claude Code (Claude Opus 5.5, reasoning level MAX). In Japanese and English, with keyboard, gamepad and touch controls; free on the developer's GitHub Pages site. The code is MIT-licensed except for the four characters and Clawd.
How it was built
VerifiedThe README credits planning and direction to たぬ and development to Claude Code (Claude Opus 5.5, reasoning level MAX). It says Claude Code made the bullet system, the stages and the three bosses' patterns, the 3D models of the heroine and the bosses, and the dialogue and ending; the 3D backgrounds, the music and the models of the yokai enemies were each handed to sub-agents (also Claude Opus 5.5) that Claude Code launched, and Claude Code integrated their work. Testing ran in headless Chrome on a real GPU, stepping frame by frame, with an auto-play bot that reads bullets ahead and dodges them, on every stage and difficulty. The Clawd extra stage, added after release, was made by Claude Code with Claude Opus 5.5 at reasoning level XHIGH, and version 1.2.0 again at MAX. In a note post the developer says this was about the only game where they gave a lot of direction; on the other works it was mostly a few exchanges and bug reports.
- DeveloperDeveloper's note post of 24 Oct 2026: eight browser works, 狐火かぐら first among them, were made with Claude Code (Claude Opus 5.5) and published on GitHub between 9 and 23 Oct 2026; 狐火かぐら was about the only game where the developer gave a lot of direction. — note (たぬ / tank_ai)
Directed by one developer, with Claude Code (Claude Opus 5.5) building the game and sub-agents making the backgrounds, music and enemy models. Characters are assembled from Three.js shapes and formulas, with hair, tails, sleeves and hakama bent in shaders and facial expressions redrawn on a canvas texture; instruments, songs and effects are synthesised with Web Audio. Built with Vite and published to GitHub Pages by GitHub Actions. Per the README, spell cards and grazing follow the conventions of the bullet-hell genre, while the characters (except Clawd), stages, patterns and music are original to the game; the designs of the four characters and the code that builds them are excluded from the MIT licence.
- Engine / framework
- Three.js
- Languages
- JavaScript
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“弾幕の仕組み、ステージと 3 人のボスの弾幕、主人公とボスの 3D モデル、会話やエンディングは Claude Code が作りました。”- Source on GitHub (tanuu5/foxfire-kagura, MIT; characters and Clawd excluded)
- Developer's note post on eight works made in two weeks (Japanese)
Verification notes: AI use, features, tech stack, languages, licence terms and release date (2026-10-10, from the README's update history) come from the developer's repository README, read through raw.githubusercontent.com on 4 Nov 2026; the README links the play address, which loaded that day. The remark about the developer's direction comes from the note post of 24 Oct 2026. The bundled script contacts no AI services. The repository's stars and commit history were not checked (github.com was not reachable from our checker). Team size and location are not stated.
Development history
Published in the browser, with a Music Room on the title screen, per the README's update history.
DeveloperGitHubVersion 1.1.0 adds the extra stage “Terminal in the Night Sky”, a fight against Clawd.
DeveloperGitHubVersion 1.2.0 adds a colour-vision assist setting, redesigns items with white borders and “P” / “点” marks so they stand out from bullets, and fixes two bugs.
DeveloperGitHub
Game performance
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Browser (official site)
No public metrics recorded for this listing.
Not publicly available: Concurrent players (site), Monthly revenue, Gross revenue.
Sales & revenue (all platforms)
Browser game — there are no downloads to count.
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| tanuu5/foxfire-kagura (README) GitHub · Japanese | Repository | Not confirmed | Nov 3, 2026 |
| Claude Opus 5.5 が2週間で作った8つのブラウザ作品（PVつき） note (たぬ / tank_ai) · Japanese | Devlog | Oct 24, 2026 | Nov 3, 2026 |
