This seems to be an ongoing issue, I'm not sure why because plenty of my older games and the big titles work just fine but there's a swathe of smaller ones like this that just don't let me change screen resolution. If I swap from Fullscreen to Windowed (why would anyone play something like this Fullscreen?) the window claims to be the size of my desktop (1728x1117, thanks Apple for the weird numbers) but it's obviously 1920x1200, and it refuses to be anything else. If I change the desktop resolution to be smaller, it will still play properly as a Fullscreen game and it'll say it's using the new smaller size, but if I switch to Windowed it still insists it has to be 1920x1200!

2023 MBP 16" M2Pro running Ventura