In a gamified system, maps serve important functions:

1. Orientation: Provide users with a visual representation of the game environment.
2. Navigation: Helps players navigate the app or game.
3. Goal Setting: Maps can be used to set goals & objectives for players. Like visiting all the locations on a map or completing challenges in specific areas.
4. Progression: Can be used to track a player's progress through a game & provide a visual representation of their journey.
5. Storytelling: Maps can be used to tell a story, convey information about the game world, and provide context for the player's actions.

A good map has to map the environment in the mind of the user, not to faithfully represent the terrain. The map is not the territory.

When the map does not match the territory (or the environment), users get lost. They usually quit the game.