build me a bright island with a pier, a wreck and a shrine

Driftwood Isle from the air in the game In engine · Driftwood Isle
Project

Wildshard

One world. Every shard built by a player.

Play it in the browser. Build it in Claude Code.

Trailer · real gameplay

what is a shard?

A world made of shards.

Each shard is 500 × 500 × 500 metres, built by one author and placed on a shared grid. A server-owned highway runs between them; glowing seams stitch them together. The first grid is five by five around a fixed centre.

Playable todayFixed centreUnclaimed
Fig. 1 · the first grid · placement illustrative
Concept painting: shards of different biomes on a glowing grid Concept art
500 ma cube per shard, one author each
5 × 5the first grid, around a fixed centre
15 mthe server-owned highway between them
Seamsglowing edges stitch shards together

show me the shards I can play today

Seven shards. Seven looks. One engine.

  • a bright low-poly island in a toon ocean, with a pier, a sailboat, a shrine and a wreck

    Driftwood Isle in the gameLoop

    Driftwood Isle Play ↗

    A bright low-poly island in a toon ocean: pier, sailboat, shrine and wreck.

  • a boreal hunt from dawn fog to lantern-lit night, and an Antler King at the end

    Pine Hollow in the game: the Antler King by a fire at nightLoop

    Pine Hollow Play ↗

    A boreal hunt from dawn fog to lantern-lit night. Face the Antler King.

  • a painted steppe I ride on horseback, with the Golden King's kurgan to open

    Nalati Grasslands in the gameLoop

    Nalati Grasslands Play ↗

    The painted steppe on horseback. Tame horses, open the Golden King's kurgan.

  • night dunes, a bullwhip, dune rays to drive off and a signal fire to light

    Signal Dunes in the game: a caravan wagon on a dune at duskLoop

    Signal Dunes Play ↗

    Crack the bullwhip, drive off the dune rays and light the signal fire.

  • grassy islands over a sea of cloud, joined by glowing bridges only a hoverboard can ride

    Sky Reach in the game: floating islands over a sea of cloudLoop

    Sky Reach Play ↗

    Grassy islands over a sea of cloud, joined by glowing bridges only a hoverboard can ride.

  • a neon city stacked 500 metres high; start me in Lantern Square

    Nine Dragon Stack in the game: a red gate over a neon squareLoop

    Nine Dragon Stack Play ↗

    Lantern Square, halfway up a neon city stacked 500 metres high.

  • start me a new shard

    The Template in the game: a grey hut on a grey floor

    The Template Build

    The greybox every new shard starts from.

how do I make one?

Claude Code is the level editor.

  1. Get a creator key

    key ws_live_•••••••• ✓ signed in as you

  2. Install the Wildshard skill and SDK in your own Claude Code
  3. Describe it. Claude builds it on a floating cube

    a frozen fjord where you are the last ferryman

    · carving the fjord · freezing the bay · placing the village

  4. wildshard build and validate check every budget and edge

    ✓ budgets · ✓ edges · ✓ package

  5. Walk it locally
  6. Upload it in the game: the beacon ritual

can Claude really build a whole shard from one line?

One sentence to a shard.

Our own dry run, Thin Ice: from one line to a playable plan in a day of steering.

The line

a frozen fjord where you are the last ferryman

Pitch
Pitch C, Thin Ice: racing over black ice above a drowned village
Three pitches; Jake picked Thin Ice.
Style
Art direction: the village under an aurora
Art direction: "Aurora, kept simple".
Map
The map of the fjord, revision 2
The map, from a 3D blockout.
In view
First-person view of the village
First-person views before a line of the level is built.
WorldClaw dry run · concept images, not the built shard

what happens when I upload it?

Uploading is a set piece.

Plant a beacon at each of the eight corners, a ninth at the centre, and watch your shard rise onto the grid.

Coming

is a stranger's shard safe on my phone?

Strangers' worlds, safe on your phone.

A shard ships data and baked assets, never code that can touch your browser. Every shard is metered, deterministic and built against a versioned API.

a shard package holds
data
baked assets
sandboxed behaviour (wasm)
code that can touch your browser
{
  "version": "0.1",
  "identity": {
    "author": "Wildshard",
    "name": "Template shard",
    "revision": 1,
    "seed": 357,
    "slug": "template"
  },
  "requires": { "sdk": "0.1" },
  "authorCaps": { "players": 32, "speed": 15 },
  "serverBudget": {
    "commandsPerTick": 32,
    "entities": 100,
    "memory": 16000000,
    "tickMicros": 5000
  },
  "runtime": null
}
The template's real shard.json, read from the live game at build time

does a shard stay the same forever?

Shards that grow.

  • Co-edit with friends.
  • Renovate abandoned shards.
  • Your name and title travel with you.
  • Two wallets, so no shard can break the economy.

what could I build?

Coming worlds.

Shards nobody has built yet. One of them could be yours.

Concept art for The Clockwork Tide, an idea for a shardThe Clockwork TideA canal city on a 20-minute tide.
Concept art for Skyforge Regatta, an idea for a shardSkyforge RegattaSky-sailing races through floating islands.
Concept art for Ashfall Bastion, an idea for a shardAshfall BastionA co-op siege on a volcanic fortress.
Concept art for Lantern Night Market, an idea for a shardLantern Night MarketA social hub that only opens at dusk.
Concept art for The Underways, an idea for a shardThe UnderwaysA deep mine in the 100 m below ground.
Concept art for The Drowned Archive, an idea for a shardThe Drowned ArchiveA sunken library, explored underwater.
Ideas · not built · concept art

where are you now?

Where we are.

  • Seven single-player shards on one engine
  • The shard package 99 %
  • The grid: seamless travel between shards 92 %
  • Every shard as data 1 of 7 shards

  1. Project Wildshard has its own address: wildshard.io.

  2. The site moves now: a trailer loop and a short loop of every shard, straight from the game.

  3. The site now builds its road and devlog straight from the plans and the commits, so it can't drift.

  4. Project Wildshard has a home: this site, built the way the game is, by Claude Code agents.

  5. The grid is public: walk a 3 × 3 grid of shards without a loading screen.

  6. Signal Dunes is the first shard to win its boss fight with no screen at all, and replay it byte for byte.

who's building it?

Built the way its authors will build.

2humans+a fleet of Claude Code agents

questions

FAQ.

What can I play it on?

Any modern browser, on desktop and phone. No install.

Is it free?

Playing is free, in your browser. Building is free too, and we never charge for uploading a shard.

Do I need a Claude subscription to build?

Yes: you build with your own Claude Code, on any plan that includes it. Playing needs nothing.

Who owns my shard?

You do. You keep the rights to what you build; uploading lets us host it and show it in the world. Abandoned shards can be renovated by new authors, and your name stays on as the original author.

What can't a shard do?

Run code that can touch your browser, go over its budgets, block the roads into it, or mint loot that breaks other shards: a shard ships data and baked assets, checked by the validator before it can join the grid.

can I keep it on my phone?

Install it.

  1. Open the game in Safari or Chrome.
  2. Tap Share, then Add to Home Screen.
  3. It opens full screen, like an app.

iOS and Android apps: coming

I'm writing about it

Press kit.

The logo, screenshots from the game and two blurbs, free to use when you write about Project Wildshard.

One line. Project Wildshard is a browser MMO where every shard of the world is built by a player in Claude Code.

A paragraph. Project Wildshard is a first-person sandbox MMO that runs in the browser on desktop and phone. Its world is a grid of 500-metre shards, and every shard is built by a player: authors describe a world to their own Claude Code, which builds it with the Wildshard SDK, and upload it to the shared grid in an in-game ritual. Seven single-player shards already run on the engine, each in its own look, from a toon island to a painterly steppe and a neon city stacked 500 metres high.

Download the kit (zip) Logo (SVG) Logo (PNG) Mark (SVG)

Contact: project.wildshard@gmail.com

I want to build one

Become an author.

Join the waitlist for a creator key. Tell us the shard you'd build, and claim the empty cell you'd build it in.

Founding authors: the first authors to upload get a permanent Founding Author title and a plaque on their shard.
Claim a cell (a wish, not a promise)

We only use your email to tell you when creator keys open.

Discord: coming Play now ↗

or write to project.wildshard@gmail.com