Sephral’s Map Knowledge

Ever wanted to reveal parts of a map because your players found an old dungeon map, received information from an NPC or already know the surrounding area?

Map Knowledge lets you reveal explored areas directly through Foundry VTT's fog of war without changing how token vision works. Whether you want to uncover an entire room, share knowledge between characters or reveal specific areas to individual players, the module gives you control over what your party knows about the map.

Highlights

Custom Map Exploration

Reveal areas using rectangles, ellipses or custom polygons. Players can see the explored parts of the map while enemies and other hidden information remain concealed until their tokens can actually see them.

Room Revealing

Reveal an entire room with a single click. The module automatically detects the room's boundaries using walls, including closed doors and windows.

Individual Player Knowledge

Choose whether an area should be revealed to everyone or only to specific players. Exploration changes are also saved for players who are currently offline.

Hide Explored Areas

Remove previously revealed areas whenever needed. Switch to the hide tool or hold Alt while drawing to conceal parts of the map again. You can also undo your last change.

Exploration Overview

See which parts of the map your players already know. A visual overlay highlights unexplored areas for the entire group or individual players.

Share Exploration

Transfer the explored areas of one player to other players. This makes it easy to share knowledge when a scout returns or characters exchange information about a location.

Automatic Region Revealing

Connect exploration changes to Foundry regions. When a token enters a specific area, the module can automatically reveal another part of the map, either once or every time the region is triggered.

Levels and Shared Fog

Manage exploration separately for different levels of a scene. The module also supports Foundry's shared fog of war.

How It Works

Enable the module in your world and open a scene with token vision and fog exploration enabled.

Select Map Knowledge from the scene controls and choose which players should receive the information.

Use the drawing tools to reveal specific areas or click inside a room to uncover it automatically. The changes are saved directly to Foundry's fog of war.

Compatibility

Supports Foundry VTT v14 and works with any game system. The module is available in English and German.

Map Knowledge uses Foundry's own fog of war system, so token vision and fog exploration must be enabled for the scene.

Learn More

Check out the manual for more details about the exploration tools, player visibility, region triggers, available settings and macro API.

Have questions or suggestions? Join the Discord server or take a look at my other modules on GitHub.