The Golden Horde / The Golden Horde: Council (Change resolution to 1920×1080)
In the game settings, the maximum resolution is 1600×1024. Through the settings file, you can change to 1080p or whatever you want.
In the game folder we find the file along the path GoldenHorde \ Profiles \ TheGoldenHorde \ ProfileXX\user_profile.up, open with any text editor and find the lines:
options.video.width 1920
options.video.height 1080
and then write the screen resolution you need.