Cities: Skylines: How to get a high resolution overlay map for Cities Skylines (Up to 90k px * 90k px))

“Hey there, Citybuilder! If you’ve ever tried to recreate a city in Cities: Skylines, you’ve probably used an overlay to help with accuracy. However, you may have noticed that the overlay resolution wasn’t up to par. In the past, I had to merge 81 maps together to get a better result, but it wasn’t very efficient. Luckily, I’ve discovered a better method to get a high resolution overlay map for Cities: Skylines, with up to 90k px * 90k px. Keep reading to find out how!”