--- title: "Sprout Quest" url: "https://aigamehub.app/ja/games/sprout-quest-d6707f" source: "https://github.com/aibengineering/sprout-quest" source_type: "github" play_url: "https://aibengineering.github.io/sprout-quest/" platform: "both" login_required: false pricing: "free" origin: "original" ai_tools: ["Claude", "Claude Code"] game_languages: ["en"] author: "aibengineering" author_handle: "aibengineering" category: "アクション" categories: ["action", "adventure", "simulation"] tags: ["boss-fight", "crafting", "mobile-portrait", "real-time-battle", "vibe-coded", "village-building"] added: "2026-10-16T17:18:36.926Z" updated: "2026-10-16T17:18:36.926Z" locale: "ja" content_locale: "ja" --- # Sprout Quest Sprout Quest は、ブラウザで遊べる可愛いモバイル向けアドベンチャーゲームで、プロローグ、複数のエリア、リアルタイムのアリーナバトル、守護者ボス、ツールの段階がある伐採と採掘、4 クラスにわたる武器製作、再建する村が含まれます。 ## Description Sprout Quest は、スマートフォンの縦向きモード向けに設計されたブラウザアドベンチャーゲームです。村の前にプロローグから始まり、戦闘 → レベル上げ → 製作のループで進行します。プレイヤーはリアルタイムのアリーナで敵と戦い、進行を阻む守護者ボスに挑み、段階的なツールで木を切り水晶を採掘し、モンスターと鉱石のトラックを持つ 4 つの武器クラスから装備を製作し、スタミナとレベルアップを管理し、ストーリー主導のマイルストーンパスに沿って村を再建します。このリポジトリには、ゲームコード、Blender アートパイプラインとすべての 3D モデル、テスト、CI が、Claude Code 内の Claude Opus 5.5 によって平易な言葉のプロンプトから作成され、人間のプレイテスターが反復間にフィードバックを与えたことが記録されています。開発は番号付きリリースで継続され、バランス調整にゲーム内プレイレポートが使用されています。 ## Original post A cute mobile adventure game built end to end by Claude Opus 5.5 on release day: real-time arena battles, crafting, village building and Blender-rendered 3D art. Topics: blender, bun, claude, game, mobile-game, typescript # 🌱 Sprout Quest > **Sprout Quest has been built entirely by Claude Opus 5.5, starting on the model's release day (22 September 2026).** > > Everything here (the game code, the Blender art pipeline and every 3D model, the tests, CI and this repo) was written > by Claude Opus 5.5 in [Claude Code](https://claude.com/claude-code) from plain-language requests. A human plays it on > their phone and gives feedback between turns; no code or art has been written by hand. **▶ Play it: https://aibengineering.github.io/sprout-quest/** (best on a phone, in portrait)

Sprout Quest gameplay: the title, a sword fight, chopping a tree, mining crystal, and the Emberwyrm boss

## How it was built ### Release day: a playable game from a handful of prompts (0.1.0) The first version was built in one conversation on release day, and was a complete, playable game by the first push: a prologue, four areas, real-time battles, guardian bosses, a village to rebuild and gear to craft. Measured from the Claude Code session log, up to that first push: | | | | --- | --- | | Human prompts to build the game end to end | **11** (plus 3 more to set up GitHub and this repo) | | Wall-clock time | ~4 h 25 min, from first prompt to published repo | | Model calls | ~230 | | Tool calls (shell commands, file edits, Blender renders, headless browser tests…) | ~245 | | Output tokens | ~565K | | Input tokens | ~99M total: ~450 uncached + ~716K cache writes + ~98.4M cache reads (the conversation is re-read from cache on every call) | The prompts, roughly: *make a cute mobile adventure game with a fight → level → craft loop* · *use Bun* · *give me a link to play it* · *fix clipped menu text* · *install Blender and make cute 3D art; make weapons feel different and powerful* · *add story, bosses and milestones that gate progression* · *make the first-time experience less overwhelming* · *start with a prologue before the village* · *move the bag near the thumbs* · *let me close the menu from the bottom* · *fix two bugs with the forge quest*. ### Since then: playing it and iterating (0.2.0 onward) Since the first release, development has been a loop: play the game on a phone, describe what feels off, and have Opus 5.5 rework it. Some of the bigger rounds so far: - **Progression overhaul (0.2.0):** a new area, woodcutting and mining with tool tiers, four weapon classes with monster and ore tracks, weapon handling, stamina, level-up screens and gear that stays a mystery until you reach its level - **Playtest data:** an in-game play report (fights, stamina, deaths, time per area) exported after a playthrough and handed back to Opus 5.5 to tune the balance against real play, not just the balance model - **Engineering:** splitting the largest modules, an end-to-end browser test, CI, a `dev` → `main` release flow and in-game patch notes - **Visual pass (0.2.1):** a sharper,