Upload a Map

Add battle maps and area maps to your campaign modules.

Supported Formats

Steps

1. Open a module from the Modules tab
2. Find the Maps section in the module dashboard
3. Click the + button
4. Choose your map file
5. Enter a Name for the map
6. Click Upload

The map appears as a card in the Maps section. Click it to open Token Setup.

UVTT Files (Recommended)

UVTT files from tools like Dungeondraft include grid, wall, door, and lighting data that Mimir imports automatically. This gives you line-of-sight fog of war, accurate token snapping, and dynamic lighting out of the box.

See Map Formats for details on what UVTT files contain and why they’re preferred.

Image Files

Standard image files work for basic token placement but lack wall data, so fog of war is not available — the Fog and LOS controls only appear for UVTT maps. On image maps, use the Reveal Map toggle and per-token Hide from Players instead. Mimir defaults to 70 pixels per grid square. See Configure Grid for details.

Generated Maps

Maps produced by mimir-mapgen are .dungeondraft_map files. Mimir cannot open .dungeondraft_map files directly — map uploads accept only UVTT (.dd2vtt, .uvtt) and image files. To use a generated map in Mimir, open it in Dungeondraft (a paid tool) and export it as Universal VTT.

Tips

• Always prefer UVTT when available — fog of war and dynamic lighting only work on UVTT maps
• Maps can belong to a specific module or to the campaign at large
• You can upload multiple maps per module (one per room/area is common for dungeon crawls)

See Also

• Configure Grid — Grid alignment details
• Place Tokens — Adding monsters and NPCs to maps
• Map Formats — Understanding UVTT and alternatives
• Generate Maps — Create maps procedurally