different versions?

Hello,
a few years ago, i bought the quest through your website. and i think it was only like 10 Mb.
and in a window.
it the version on Steam and Gog the same one, or a remake?
a few years ago, i bought the quest through your website. and i think it was only like 10 Mb.
and in a window.
it the version on Steam and Gog the same one, or a remake?