Same Prompt: 3 AIs Make the Watermelon Game
Three AI models given the same prompt to build a Suika-style fruit-merging game, playable side by side, first tries and fixes untouched.
Official site skytek-dotcom.itch.io, verified Nov 3, 2026. The developer's own itch.io page (skytek-dotcom), listed on the developer's itch.io profile.
Rights holder / original work: Suika Game (Aladdin X)
Three AI-made versions of the Suika Game (Watermelon Game) design, built from a prompt that, as the page describes it, asked for the Watermelon Game (Suika-style), under generic titles such as Fruit Merge and Little Orchard. The prompt asked for no images, and the page names no Suika Game assets; no source mentions a licence from the rights holder. (itch.io)
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Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — itch.ioitch.ioReleasedFree
Plays in the browser on itch.io. No download.
Browser (no download) · Official link verified Nov 3, 2026.
About Same Prompt: 3 AIs Make the Watermelon Game
Five small browser versions of the Watermelon Game (Suika Game), the fruit-merging puzzle in which you drop fruit into a jar, two identical fruits merge into a bigger one, and you aim for a watermelon before the jar overflows. The developer, skytek-dotcom, gave ChatGPT 6 Pro, Gemini 3.1 Pro and Claude Fable 5.1 (Max) the same prompt — build it from scratch in one HTML file with no libraries and no images — and then exactly one fix request each. A menu page lets you play each result as the AI wrote it: ChatGPT's first try (“Little Orchard”, no fix needed), Gemini's first try and its fix, and Claude's first try and its fix, which the menu says runs at 60 fps. The developer says no line of the game code is theirs; only the menu page was added by hand. It is a comparison of AI clones of an existing game rather than an original game, and a companion to a YouTube video. Free in the browser on itch.io.
How it was built
VerifiedThe itch.io page says ChatGPT 6 Pro built one version from the shared prompt on the first try and needed no fix; it is included untouched. The developer says all game code in the project was written by AI models.
The page says Claude Fable 5.1 (Max) built one version from the same prompt and then made one fix; both the first try and the fixed version are included untouched, and the menu describes the fix as the same game running at 60 fps. A third version, by Gemini 3.1 Pro (Google), is also included with its first try and its fix; Gemini is not in our tool list, so it is named here.
One shared prompt asked each model for the Watermelon Game from scratch as a single HTML file with no libraries and no images; each model then got exactly one fix request. The five resulting files are served unchanged behind a menu page that the developer wrote. Gemini's fixed version nonetheless loads the matter.js physics library from a CDN; the other four files are self-contained. None of the files calls an AI service while you play.
- Engine / framework
- None (single HTML files with JavaScript)
- Languages
- HTML, JavaScript
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- ~100% of shipped codeDeveloper Reporteditch.io
“All game code in this project was written by AI models. The menu page was added by me.”Verification notes: Models, prompt rules, the single fix per model and the statement that all game code is AI-written come from the itch.io page; the version list and descriptions from its menu page. AI code share is recorded as 100% for the game code only, as the developer states; the menu page is the developer's. The itch.io page shows no publication date; the uploaded build's version stamp corresponds to 1 Oct 2026 (13:12 UTC), so no release date is recorded. We checked the five game files: their titles are “Little Orchard - Fruit Merge” (ChatGPT), “Fruit Merge Puzzle” and “Merge Fruit Game” (Gemini) and “Fruit Merge” (Claude); only Gemini's fixed version loads an outside library (matter.js), despite the no-libraries prompt. The page names the YouTube channel Proof of Ship without a link; the video found under that title on the Proof Of Ship channel is recorded as a link, but the page does not say the channel belongs to the developer. The itch.io AI disclosure ticks Code and Graphics. No ratings are shown on the page.
Development history
The current build is uploaded to itch.io (date of the build's version stamp).
Observeditch.io
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.
itch.io
Free; plays in the browser (HTML5), with a menu to pick one of the five versions.
No public metrics recorded for this listing.
Not publicly available: itch.io rating, Gross revenue.
Sales & revenue (all platforms)
Browser game — there are no downloads to count.
Reviews & rankings
Not yet reviewed by our editors.
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Not currently ranked.
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Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| Same Prompt: 3 AIs Make the Watermelon Game by skytek-dotcom itch.io | Store page | Not confirmed | Nov 3, 2026 |
| Same Prompt: 3 AIs Make the Watermelon Game (menu page and game files) skytek-dotcom (itch.io HTML upload) | Official site | Not confirmed | Nov 3, 2026 |
| ChatGPT vs Gemini vs Claude Make the Watermelon Game — Then I Put Them Online YouTube (Proof Of Ship) | Social post | Not confirmed | Nov 3, 2026 |
| Official game page (language check) skytek-dotcom | Official site | Not confirmed | Nov 3, 2026 |
