Replace the existing texture files with your modded files. Do not rename the folders themselves, as this can cause the game to crash. official Content (DLC)
Since unofficial mods can be difficult to find or install, many players expand the game through official DLC. These add new airports with unique challenges and real-world layouts: Airport NARITA [RJAA]: Japan's largest international airport. Airport NAGOYA [RJGG]:
Search for communities like "ATC 4 Modding" which host shared assets and texture files.