LOST MARBLES
A 50-marble royale in the browser: race down wooden-block courses, draft perks and survive the cut at every checkpoint. The developer says it was made with Claude Code.
Official site meticulai.com, verified Nov 3, 2026. The game's page on the developer's own site meticulai.com (Meticulai Games), linked in the developer's Reddit post by u/Available_Drawer4879, which also links the X account @meticulai.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- Play free — official siteBrowserEarly access · Working betaFree
Runs in a desktop or mobile browser. No download.
Browser (no download) · Mobile · Official link verified Nov 3, 2026.
About LOST MARBLES
LOST MARBLES is a free browser party game in which fifty glass marbles race down a wooden-block course in a giant bedroom. The show has five stages, and at every checkpoint the last ten are cut, from 50 to 40, 30, 20 and 10, before a final race for the crown. Before the first stage you keep three of six perks, and after each checkpoint the survivors pick one of three; boosts stack, passives change the rules and abilities go on a button, and perks that many marbles already hold are dealt less often. Courses fork into safe, slow lanes and fast, risky ones such as a beam, a loop-the-loop or a cannon, with mega jumps and a bowl where everyone circles the rim before dropping through the drain. You can join Quick Play online with up to 50 players, where bots fill the empty places, play a Solo Show against 49 bots, create a room with a code, or build your own course to practise on. Every show earns stickers to open packs, unlock perks, level up perk mastery, build the deck the draft deals from and buy and repaint marbles; night shows turn the lights out so the marbles glow. It works with keyboard, gamepad or one-handed touch controls, with no signup. The developer, Meticulai Games, says it was made with Claude Code on a commute and built entirely on three.js, and later called it fully vibed. Shared as a working beta in October 2026.
How it was built
Partially verifiedIn a post on r/aigamedev (18 Oct 2026, UTC) sharing the working beta, the developer writes: “Made it using Claude Code Cloud on my commute. Threejs everything, using a free HDIR for lighting.” No model is named, and the post does not say how much of the code was written by hand.
- DeveloperA second post by the same account (25 Oct 2026), linking the same X clip of the game, is titled “I went somewhat viral for this on X, could use your thoughts! Fully vibed”. — Reddit (u/Available_Drawer4879)
Per the developer, made with Claude Code in the cloud while commuting, with three.js for everything and a free HDRI for the lighting. The game page loads JavaScript modules built on three.js, with separate files for networking, the course builder and rendering; online rooms of up to 50 players are filled with bots.
- Engine / framework
- Three.js
- Languages
- JavaScript
- Team size
- Not disclosed
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“Made it using Claude Code Cloud on my commute. Threejs everything, using a free HDIR for lighting.”Verification notes: The Claude Code claim comes from the developer's post on r/aigamedev by u/Available_Drawer4879 (18 Oct 2026, 04:33 UTC), read from the Arctic Shift Reddit archive; the post links the game page and an X clip by @meticulai. A second post by the same account (25 Oct 2026, 01:43 UTC) links the same clip and calls the game “Fully vibed”; its claim of going “somewhat viral” on X was not checked and is not recorded as popularity. A third post (“A little devlog on how I vibecode video games”, 25 Oct 2026) only links an X post, which we did not read. The developer name Meticulai Games is from the game page. Stages, cuts, perks, modes, Toy Box, settings and controls come from the game page (checked 4 Nov 2026); “HDIR” is quoted as the developer wrote it. The game's main script makes no calls to AI services; prices in the Toy Box are in stickers earned in play. Release date, team size and location are not stated. The game was not played.
Development history
A working beta is shared on r/aigamedev, free and with no signup.
DeveloperReddit (u/Available_Drawer4879)
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 with no signup; stickers earned in play buy packs and marbles.
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 |
|---|---|---|---|
| First game I ever share with the world!! Working beta live now and I couldn't be happier with the reaction :) (r/aigamedev) Reddit (u/Available_Drawer4879) | Social post | Oct 18, 2026 | Nov 3, 2026 |
| I went somewhat viral for this on X, could use your thoughts! Fully vibed (r/vibecoding) Reddit (u/Available_Drawer4879) | Social post | Oct 25, 2026 | Nov 3, 2026 |
| LOST MARBLES: 50-marble royale (game page) Meticulai Games | Official site | Not confirmed | Nov 3, 2026 |
| Official game page (language check) Meticulai Games | Official site | Not confirmed | Nov 3, 2026 |
Similar games
