MapFill is a fog-of-war map game. The whole world starts hidden under navy fog, and it fills in around you in blocky pixel chunks as you move through the real world — a living record of everywhere you've been.
How it works
- Walk or drive, and the map uncovers around you.
- Chunks are grid squares you've fully revealed — that's your score.
- Charting keeps going in the background, so you don't have to open the app.
- Swap friend codes to compare maps and scores.
Privacy in one line
Your location history stays on your phone. Map sharing is optional and off by default, and it shares only the shape of what you've revealed — never where you are. Read the full privacy policy.
Support
Questions or bugs: support page or mapfill.app@gmail.com.