Seeds & history

A seed is the random number that drives every procedural decision in the generator. Same seed + same settings → identical map. The Foundry surfaces seeds in two places.

The seed input

Top of the Build tool. A free-form text field showing the current seed.

• Reroll in the top bar generates a fresh random seed and re-renders. The shortest path to a new map.
• Paste your own to reproduce someone else’s map. Hit Generate after pasting.

Seeds are arbitrary strings (1–96 characters). You can use anything memorable — kingsroad-001, acrid-marshlands, 2026-06-05.

Tip

Every scene you save records its seed and full settings. Open a saved scene’s metadata and copy the seed if you want to regenerate the exact same map at a higher resolution or with different decorations later.

Share a whole map — map codes

A seed alone only reproduces a map if every setting matches too. To hand someone the whole thing in one go, use the map code buttons under the seed field:

• Copy map code — copies a single code (it starts with pmf1:…) that packs the seed, the map kind, and every slider and style setting. Paste it into a message, a doc, wherever.
• Import — paste a code someone sent you and click Load. The Foundry rebuilds their exact map. Importing replaces your current setup and clears your locks, paint, and feature edits, so copy your own code first if you want to keep it.

Note

A map code captures the generated world — seed, kind, and settings. It does not carry hand edits (renamed towns, moved labels, placed decorations); those live in a saved scene. Think of a code as “the world this seed grows,” not a finished scene.

History strip

The strip across the bottom of the Foundry shows thumbnails of the last eight previews you’ve generated this session. It’s a ring buffer — the ninth pushes the oldest out.

Each thumbnail shows the basemap + vector overlay at preview resolution. Click any thumbnail to open a popover.

Popover actions

• Restore — load that entry’s seed AND settings back into the controls, replacing what’s there now.
• Copy seed — copy the seed string to the clipboard.
• Delete — drop the entry from the strip.

Restore replaces every setting that contributed to the render — so the sliders, kingdom mode, palette overrides, everything snaps back to match the thumbnail.

Reproducing a map exactly

1. Find or paste the seed.

2. Apply the same settings — either by hand, by applying the original preset, or by opening the metadata of a saved scene and copying it across.

3. Set Mesh detail to match. Different detail = different mesh geometry = different layout.

4. Hit Generate.

If you’re trying to reproduce a saved scene exactly, also keep:

• Aspect ratio — the canvas dimensions shape the noise sampling.
• Pixel size — same reasoning. The Foundry’s preview is 1024px; the save render is 2048px.
• Generator version — every save records the generator version it was rendered against. Major upgrades to the generator bump this version, so old seeds may not reproduce byte-identically in a new major version.

Sharing maps

The easy path: send the seed AND a screenshot of your settings panel. The reliable path: hit Save preset, then share the preset name (if the recipient is on your team). The bullet-proof path: save the map as a scene and share the scene URL.

Related

• Saving as a scene — every saved scene records its seed and settings for later reproduction.
• Variations — flip through nine alternative seeds while keeping everything else identical.
• Presets — bundle a settings snapshot so the seed + settings travel together.