To run Settlers 3 in widescreen, you have a few options:
Getting to run in widescreen is a common hurdle for fans of this 1998 classic, as the original game engine only officially supports 4:3 resolutions. To achieve a modern display setup, you generally have two reliable paths: using a community-made patch or a modern source port. Option 1: The Settlers 3 Widescreen Patch settlers 3 widescreen
If you are running the original CD version or the standard GOG version: To run Settlers 3 in widescreen, you have