Willowmere
Free · play online in your browser, no download
Arrive in a seaside town on the night ferry and bring the dark lighthouse back to life, in a cozy 3D pixel-art story game for the browser. The developer says it was built with Claude Code and that every model, texture and tune is generated by code Claude wrote.
Official site willowmere-nu.vercel.app, verified Nov 3, 2026. Play link in the developer's own Reddit posts.
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 Willowmere
Willowmere is a free, cozy 3D pixel-art story game for the browser. You arrive in a small seaside town on a night ferry, find the lighthouse dark and slowly bring the town, and the light, back. Along the way there is farming, fishing, decorating your cottage and befriending the townsfolk (and a cat). The story runs in three acts: Lantern Night closes Act I, a hydrophone and a whale called Old Hum lead Act II, and Act III is a homecoming through the rocks called the Teeth, followed by credits and a true ending. Activities added in later versions include Low Tide, with tides, rock pools and Great Shell collections, lantern-making, moonlight fishing, and Keep Watch, in which you guide ships home with the lighthouse beam; they also added a whale-bone cove and pier and 3D-rendered character portraits with expressions. It plays on PCs and phones, where an on-screen A button replaces the E key; there is no controller support yet. The developer, posting as u/BroEvenIDK, says it was built with Claude Code (Opus 5.5), with no game engine and no asset files: every 3D model, pixel texture, portrait and piece of music is generated by JavaScript that Claude wrote.
How it was built
Partially verifiedIn a post on r/vibecoding (2 Oct 2026, UTC) the developer writes that the game was “built with Claude Code (Opus 5.5) over about 10+ sessions, High effort for the initial one-shot, then iterated w/ Medium”, with “no engine, no asset packs. every 3D model, pixel texture, portrait and piece of music is generated by JavaScript Claude wrote.” A later post on r/ClaudeCode (4 Oct 2026) adds: “everything you see is made in code by claude. no asset files are used.” In the first post (25 Sep 2026) the developer says the first version was made on the $20 plan in about two and a half five-hour sessions, mostly at High effort. Asked how it was prompted, the developer describes asking for a pixel-art story game and then iterating on the art part by part (the sea first, then the trees) and then on the story.
- Developerr/ClaudeCode post on the newest version: “everything you see is made in code by claude. no asset files are used. everything you see is in vanilla HTML and JS. no game engines were used.” — Reddit (u/BroEvenIDK)
- DeveloperFirst post, titled “Opus 5.5 built this cozy 3D pixel art game”: made in about 2.5 five-hour sessions on the $20 plan. — Reddit (u/BroEvenIDK)
Prompt-driven iteration, per the developer: an initial one-shot at High effort, then about ten more sessions at mostly Medium effort, first on the pixel art piece by piece and then on how the story plays out. Graphics, portraits and music are generated by the game's own JavaScript rather than loaded from asset files. The live page loads the three.js library and the game's own scripts (art, world, three.js scenes, story, fishing, tides, lanterns, the Keep Watch minigame); the developer says no game engine was used. In a reply the developer puts the time at about one day for the first version with a minimal story and three more days for the second, four days in total, not counting waits for the weekly usage limit to reset.
- Engine / framework
- None (vanilla JavaScript with three.js)
- Languages
- JavaScript
- Team size
- Not disclosed
- Initial build time
- About 1 day for the first version; about 4 days in total for the secondDeveloper ReportedReddit (u/BroEvenIDK)
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“every 3D model, pixel texture, portrait and piece of music is generated by JavaScript Claude wrote”- built this cozy 3D pixel art game with Claude Code (r/vibecoding)
- I let Opus 5.5 iterate on this cozy 3D pixel art game (r/ClaudeCode)
- Opus 5.5 built this cozy 3D pixel art game (r/ClaudeCode)
Verification notes: AI use from the developer's posts by u/BroEvenIDK on r/ClaudeCode (25 Sep 2026, 17:59 UTC, and 4 Oct 2026, 14:46 UTC) and r/vibecoding (2 Oct 2026, 20:01 UTC), and the developer's replies on the 4 Oct post (5 Oct 2026), read from the Arctic Shift Reddit archive on 7 Nov 2026; all link the game. Claude Code is named in the r/vibecoding post and in the developer's replies under the first post (“Claude Code with Opus 5.5 High”); the other posts name only Opus 5.5 and Claude. The developer's words cover the graphics, portraits and music and say Claude wrote the JavaScript, but give no share for the code as a whole, so no AI code share is recorded. Story, activities and controls come from the posts; the game page and its scripts, read on 7 Nov 2026, match the features (acts, tides, lanterns, fishing, Keep Watch, a cat and a dog) and load three.js plus the game's own scripts and Vercel's analytics script, with no calls to AI services. The developer's identity is not stated beyond the Reddit handle. No release date is given; the first version was public by 25 Sep 2026. The game was not played.
Development history
First version presented on r/ClaudeCode (17:59 UTC): restore the dark lighthouse and bring back the Lantern Festival.
DeveloperReddit (u/BroEvenIDK)Second version presented, with a three-act story, rock pools at low tide, lantern-making and Keep Watch; the r/vibecoding post names Claude Code.
DeveloperReddit (u/BroEvenIDK)The developer shares the newest version on r/ClaudeCode with fixes for reported issues.
DeveloperReddit (u/BroEvenIDK)
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 with no install, on PCs and phones.
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 |
|---|---|---|---|
| Opus 5.5 built this cozy 3D pixel art game (r/ClaudeCode) Reddit (u/BroEvenIDK) | Social post | Sep 25, 2026 | Nov 3, 2026 |
| built this cozy 3D pixel art game with Claude Code (r/vibecoding) Reddit (u/BroEvenIDK) | Social post | Oct 2, 2026 | Nov 3, 2026 |
| I let Opus 5.5 iterate on this cozy 3D pixel art game... (r/ClaudeCode) Reddit (u/BroEvenIDK) | Social post | Oct 4, 2026 | Nov 3, 2026 |
| Reply on how long the game took (r/ClaudeCode) Reddit (u/BroEvenIDK) | Social post | Oct 5, 2026 | Nov 3, 2026 |
| Willowmere willowmere-nu.vercel.app | Official site | Not confirmed | Nov 3, 2026 |
| Official game page (language check) BroEvenIDK | Official site | Not confirmed | Nov 3, 2026 |
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