Atlas Forge: RPG Battle Map Maker

Atlas Forge is a browser-based RPG battle map maker for dungeon rooms, wilderness encounters, and fantasy battlefields. Assemble modular tiles and objects, place room Blueprints, and edit routes and layers to fit your next session.

Open Atlas Forge · Read the map-making guide

Build from a blank canvas, a premade map, or a generator

  • Modular map assets: arrange tiles, furniture, terrain, and other objects; adjust size, rotation, opacity, and stacking.
  • Room Blueprints: place a prepared arrangement of map elements, then move and rotate it together.
  • Routes and drawing tools: add paths and passages, lines, fills, shapes, and labels.
  • Layers: organize map elements and use visibility and locking controls while editing.
  • VTT preparation: inspect prepared walls, doors, windows, and lights in Lighting view, and add missing edges with Wall Pencil.

Dungeon map preview

Atlas Forge dungeon map preview showing connected stone rooms, corridors, furniture, and a square battle grid
Dungeon map preview with connected rooms and placed objects. Open the editor's Tutorial for a guided demonstration of its controls.

How to make your first battle map

  1. Choose New Map, then start a Custom Map, open a Premade Map, or choose a Generator.
  2. Place tiles and objects from Map assets. Select an item and adjust it in the Inspector.
  3. Arrange the encounter with Blueprints, routes, and layers. Check Lighting if you need VTT wall data.
  4. Open Project → Export Map. Download an editable Project File for backup, or select the finished format you need.

Who is Atlas Forge for?

Game Masters can use it for a one-shot dungeon, a roadside ambush, a ruined temple, or a recurring campaign location. Start with terrain and obstacles for an outdoor fight, or combine rooms and corridors before furnishing an interior. The map artwork can support D&D and other tabletop RPGs.

Frequently asked questions

Do I need an account to build a map?

You can build before signing in. An account connects cloud maps and finished-map export access. Atlas Forge and GM Toolkit use the same account.

How do I save an editable map?

Download the free .atlasforge Project File from Export Map, then reopen it with Open Project File. The working map also autosaves in your browser. Keep a separate project backup before clearing browser data or starting another map.

Which export formats are available?

Choose JPG for a flattened image, Universal VTT for the map and prepared lighting data, or protected PSD with editable labels, lines, and grid layers. Editable Project Files and GM Toolkit files are also available.

Are exports free?

Editable Project Files and GM Toolkit files are free. Finished JPG, Universal VTT, and PSD exports require sign-in and export access. The credit option unlocks a specific map and size for seven days, including corrections and re-exports during that window. See the app for current access options.

Will VTT walls import automatically?

Universal VTT includes prepared wall and lighting data, but the destination VTT needs a compatible importer. Check Lighting before export and review the result after importing.

Guides and related resources

Start your first map · Save and reopen a project · Choose an export format

Organize the adventure with GM Toolkit, or browse downloadable RPG map packs and VTT token assets.