Baseline (Widescreen) Solution & Issues
1. Run the game for the first time. (The game will create an ini file).
2. In the game folder open the ini file and in easy way change resolution for example 1920x1080.
3. Close the ini file and save the changes.
4. Now you can run the game in widescreen resolution.
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Eyefinity / Surround Specific Solution & Issues
4k UHD Specific Solution & Issues