Yes, anything that is installed, will have it's own space on your HD. Or else it wouldn't be installed.
But it depends on where you install it to, or where say, Steam installs it too, in case it's done automatically, if you wanna find it later.
Just look at the properties of the launch executable, I reckon.. it should tell you the path. (right click on the game shortcut and look at it's properties.)
It should say something like C:\Program Files (x86)\Vstep\ShipSimExtremes\SSE.exe and then you know where to look. not that you need to do much to those folders anyway.
Regards,
Fred