Baseline (Widescreen) Solution & Issues
Native Hor+ support. Settings are stored in the registry: HKCU\Software\MTG\HauntedMemories\
It's an Indie game, and it still has lots of bugs!
One major bug, as far as resolution is concerned, at least on my side, is that the game doesn't recognize resolutions correctly.
I have 1920x1200 monitor with some custom resolutions created, but the list of supported resolutions in game is really strange...
Here, take a look
None of those strange resolutions were created by me. Actually, if i choose for example 2538x1080 the actual resolution seems to bee 2560x1080 (the actual custom res i created) . The same or similar thing is with other strange resolutions.
It's a free game, so i guess you should download it and treat it as a demo and test the support for your system.
ps. i just noticed some graphical effects does not scale correctly. See additional screenshots
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Eyefinity / Surround Specific Solution & Issues
4k UHD Specific Solution & Issues
I couldn't test it. I have 3840x2160 custom resolution but the game doesn't recognize it.