Baseline (Widescreen) Solution & Issues
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
The Game is only designed for 16:9 - you need to Hex-edit to get it to 21:9.
Go to --> ...\Steam\steamapps\common\Shu\Shu.exe
Look for 39 8E E3 3F and change it to CD 90 18 40
From now the 21:9 resolutions will be listed in the Game Options.
Issues: Typical Unity Problem - the Menus and Hud became bigger and are slightly cut off.
Eyefinity / Surround Specific Solution & Issues
Same workaround as in Ultra-Widescreen --> Hex-edit - look for 39 8E E3 3F and change it to AB AA AA 40.
Issues: The Menus and Map are way too big and the Hud is nonexistent.
4k UHD Specific Solution & Issues