I read this in an article about the Soviet maps made during the Cold War .
"Worse, the maps for the masses were deliberately distorted with a special projection that introduced random variations. “The main goal was to crush the contents of maps so it would be impossible to recreate the real geography of a place from the map,” Postnikov tells me. Well-known landmarks like rivers and towns were depicted, but the coordinates, directions, and distances were all off, making them useless for navigation or military planning, should they fall into enemy hands. The cartographer who devised this devious scheme was awarded the State Prize by Stalin."
And I thought, there must be a game in this.
Inside the Secret World of Russia’s Cold War Mapmakers