エコ詰め
Free · play online in your browser, no download
Pack the shopping from the basket into an eco bag with no gaps, turning items and standing them on end. The developer wrote no code: an AI “game development bot” made the game.
Official site unityroom.com, verified Nov 3, 2026. Linked as the browser version from the developer's own note article; the unityroom poster name 雑煮餅 matches the article's author.
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 or mobile browser. No download.
Browser (no download) · Mobile · Official link verified Nov 3, 2026.
About エコ詰め
エコ詰め (Ecozume, “eco packing”) is a free packing puzzle. Groceries and household goods of different shapes wait in a basket, and you drag them into an eco bag, rotating them and standing tall items up or laying them down, until the bag is filled with no gaps. New rules come in as the stages go on: stacking onto a second and third layer, merging identical items, taking care with fragile goods and keeping hot and cold items apart; squares where the selected item fits light up green. Stages 1 to 10 are a tutorial, and from stage 11 an endless mode serves a differently shaped bag each time, scored with stars and points, with a hint and a one-square bag extension when you are stuck. It plays in the browser on PC and on phones in portrait, in about 30 minutes per the unityroom page. The developer, 雑煮餅, writes on note: “正直に言うと、コードは私は一切書いていません” (to be honest, I did not write any code at all). A “game development bot” the developer set up on a service called Grok bot made the game in Godot and even prepared a signed Android app, while other bots handled research and how to sell it; the developer playtested, asked for changes, checked it on a phone and uploaded it. Illustrations, music and sound effects were made with generative AI. Free on unityroom and PLiCy; a free Android version and a ¥300 supporter edition with 86 voice lines (VOICEVOX: 春日部つむぎ), two music tracks and wallpapers are distributed on BOOTH, which we do not track. In Japanese.
How it was built
Partially verifiedAn AI bot service the developer calls Grok bot; we could not identify the product or model behind it, so the tool is recorded as undisclosed. The developer's note article (12 Oct 2026) says: “正直に言うと、コードは私は一切書いていません。Grok bot で、最初に作成した「ゲーム開発Bot」というAIがゲーム本体を作り、署名つきのAndroidアプリまで用意してくれます。” (I did not write any code; the “game development bot” I first set up on Grok bot made the game itself and even prepared a signed Android app.) The bot works in the background and sends a message and a download link when done. A later article (3 Nov 2026) lists the setup: a research bot (what to make, planning and specs, commissioning and running the game work), the game development bot (making the game in Godot and exporting Android, browser and Windows builds) and a third bot for sales pages, announcements and sales checks; the developer decides what to make, says what to fix and makes the final call. The first article also says Grok bot is slightly cheaper with a Cursor subscription (as of 9 Oct 2026). The prompts themselves are in the paid part of the later article, which we did not read.
- DeveloperLater article (3 Nov 2026): the game development bot makes the games in Godot and exports Android, browser and Windows builds; the first playable build took one day, and publication 19 days. — note (雑煮餅 / noahsark_569)
Made in Godot by an AI bot, per the developer, starting from an MVP that was already close to the final shape; the developer tested on a phone and reported problems in plain words. For example, the music seemed to stop when a voice played, and the cause turned out to be the music's volume being lowered too far. Illustrations, music and sound effects are generative AI; the supporter edition's voices were made with VOICEVOX, after the bot offered about five voices to choose from.
- Engine / framework
- Godot
- Languages
- Not disclosed
- Team size
- Not disclosed
- Initial build time
- One day to the first playable build; 19 days to publication, including a five-day wait for the bot's usage quotaDeveloper Reportednote (雑煮餅 / noahsark_569)
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“正直に言うと、コードは私は一切書いていません。”- Developer's note article on making the game with AI and releasing a ¥300 supporter edition (Japanese)
- Developer's note article on asking an AI bot to make two games (Japanese, partly paid)
Verification notes: AI use and the update history come from the developer's note article of 12 Oct 2026 (12:31 JST); the bot setup and timings from the free part of the article of 3 Nov 2026 (20:05 JST), both re-read on 6 Nov 2026. Gameplay, controls, engine (Godot), dates (posted 4 Oct 2026, updated 26 Oct 2026) and play time come from the unityroom page, which on 6 Nov 2026 showed 327 views, one rating (score hidden for too few ratings) and no comments; views are not a tracked metric. The PLiCy page (titled エコ詰めを遊ぶ！) carries the same description and the same BOOTH link. The developer reported 194 unityroom views and no supporter-edition sales as of 12 Oct 2026; these are the developer's own figures and are not recorded as metrics. “Grok bot” is the developer's name for the service; its maker and model are not stated. The game's Godot build was not checked for AI service calls; the sources describe no AI used during play. The developer's second game, 跳べ!ちびっ子冒険団, has no public statement about AI-written code beyond the paid article and is not recorded. The game was not played. No name or location is given.
Development history
Posted on unityroom.
ObservedunityroomListed on フリーゲーム夢現, per the developer.
Developernote (雑煮餅 / noahsark_569)The developer's note article: versions 0.7.2 to 0.8.2 add green placement hints and an Android supporter edition with voices; a free Android version and the ¥300 supporter edition are on BOOTH.
Developernote (雑煮餅 / noahsark_569)Latest update on unityroom.
Observedunityroom
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
Browser (official site)
Free in the browser on unityroom (PC, or phones in portrait); the same game is also on PLiCy (plicy.net/GamePlay/239293). A free Android version and a ¥300 supporter edition with voices, music and wallpapers are distributed on BOOTH. unityroom notes that saves can be lost in some browsers and offers a save export.
No public metrics recorded for this listing.
Not publicly available: Concurrent players (site), Monthly revenue, Gross revenue.
Sales & revenue (all platforms)
Reviews & rankings
Not yet reviewed by our editors.
Not currently ranked.
Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| AIと一緒にパズルゲームを作って、300円の「支援版」を出すまで。今のところ売上は0円です note (雑煮餅 / noahsark_569) · Japanese | Devlog | Oct 12, 2026 | Nov 3, 2026 |
| AI Botに「ゲームを作って」と頼んだら、本当に2本できた話【裏側・指示文つき】 note (雑煮餅 / noahsark_569) · Japanese | Devlog | Nov 3, 2026 | Nov 3, 2026 |
| エコ詰め | unityroom unityroom · Japanese | Store page | Oct 4, 2026 | Nov 3, 2026 |
| エコ詰めを遊ぶ！ フリーゲームのPLiCy PLiCy · Japanese | Store page | Not confirmed | Nov 3, 2026 |
| Official game page (language check) 雑煮餅 | Official site | Not confirmed | Nov 3, 2026 |
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