Some of the mistakes are down to people not having the correct information and others are actually misinformation. There is also one map that accidentally leaked military information to a foreign power.
We have a lot of topics about maps and there are all sorts of tutorials about how to make maps work properly...
...but does anyone go the other way and include intentionally broken maps in their games?
I can think of a few reason to use an incorrect map in a game:
- The GMs map has exact details of locations in hostile nations and the GM wants to "sell" the idea that it is hard too learn about those regions,
- The campaign world has known lands, frontier lands and unknown lands and the GM wants to erase unknown locations from the player version of the map, so that they can add them back in later,
- A map with mistakes is a fraud created by an NPC who knows nothing about the area they have been asked to provide a map about,
- A map is created by a nation as more of a statement of the land they "own" than the land they really possess or
- A map is created by an explorer who had a setback that stopped them charting regions of the world and who is unwilling to admit their failure.
Have you ever done anything similar in a game?