This is what a developer replied about a user asking info about the standalone installer that come with the game bought on the official site.
"It's the same version GOG sells."
So what's the point in buying it on GOG if the other one is the same plus steam key plus more money to developer? They aren't doing a good publicity to GOG.
Might it not be the other way around, or at least go both ways? I suspect more people might know about and frequent gog than the developers blog.
OK, fair enough, but now that you DO know about the dev and game, why not just go buy from the dev instead of paying a middleman and cutting some profit from the people who actually deserve it.
I'm all for paying for due effort, and when gog rewrite an installer for current OS's that's great and they deserve every penny.. but when they do nothing except what amounts to a few posts I don't see that they are due any profit from it.
Go buy it from the dev...