Get started
First-time walkthrough — kind, style, seed, save. Read the walkthrough →
Map Foundry
Map Foundry is a procedural fantasy basemap generator built into PostRoll. A few sliders and a drag-and-drop decoration layer produce a fully painted scene in seconds — complete with rivers, kingdoms, roads, settlements, and optional pin / region / path layers you can immediately edit.
What you can build
Section titled “What you can build”- A continent or archipelago for a new campaign, with realistic coastlines, mountain ranges, climate-driven biomes, and a road network that respects the terrain.
- A regional inset that zooms into a specific corner of an existing world, sharing the seed so it stays consistent.
- A political map with kingdom borders that snap to rivers or ridges.
- A stylised art-piece map with a custom palette, a hand-placed compass rose, an ornate title, and your own SVG / PNG illustrations on top.
Quick navigation
Section titled “Quick navigation”Build
Seed, map kind, art style, climate, and aspect ratio. Open the Build guide →
Terrain & detail
Terrain sliders, rivers, forests, climate detail — grouped into cards. Open the terrain guide →
Paint
Brush hills, valleys, biomes, and rivers directly onto the canvas. Open the Paint guide →
Decorate
Compass roses, title backdrops, illustrations, custom uploads. Open the Decorate guide →
Edit features
Rename, move, add, and delete towns; recolour and reshape kingdoms. Open the editing guide →
Kingdoms
Render modes, border alignment, custom palette per region. Read the kingdoms guide →
Settlements & roads
Town marks and icons, road styles and names, and editing roads by hand. Read the settlements & roads guide →
Coastlines
Fidelity slider and per-segment cliff / beach / cove features. Read the coastlines guide →
Custom palette
Per-channel tweaks layered on top of the chosen style. Open the palette guide →
Locks
Keep the parts you like; reroll everything else. Read the locks guide →
Presets
Apply a starting point or save your own. Open the presets guide →
Variations
See nine alternatives of the same scene at once. Open the variations guide →
3D view
Shape terrain in three dimensions, with the controls still to hand. Open the 3D guide →
Seeds & history
Share specific maps and revisit recent renders. Read about seeds →
Save as scene
Conversion toggles, entity stubs, and what becomes a layer. Open the save guide →
Troubleshooting
Common issues and what to check. Open troubleshooting →
Where to find it
Section titled “Where to find it”The Map Foundry lives at /app/scenes/foundry, or scoped to a specific world at /app/worlds/[id]/maps/foundry. From the Scenes page, click New scene and pick “Map Foundry” when no basemap has been uploaded.