What a nice thread to find on the catalog.
>>50068485
Another way to play SG without issues is by grabbing the updated exes this guy has been making (thanks to the fact the game was open sourced and put on github by amusement makers), with support for the latest directx versions and even vulkan. It's the same guy who's been decompiling the pc98 games.
https://github.com/nmlgc/ssg/releases