Just did a GOG survey that focused on the idea of a paid membership option on GOG. Seems they're determining what people would be willing to pay extra for. Some of the options were
- a tool for backing up offline installers
- ability to install previous versions of a game
- extra insight into the preservation work they're doing.
- voting rights on games to bring into the preservation program.
And others that I can't remember.
Why do you want a launcher? I have a few GoG games and I don't really feel like a launcher is something I need.
What I do want is games to actually update on GoG at the same time as steam, not over a week later. X4 7.0 came out and it was over a week longer for the GoG version to update, in the end I refunded and bought it on steam instead.
Cloud saves, achievements, and tracking hours is something I do like. I have over a 100 GOG games, so individually managing exe files isn't something I really want to do.
I backup my own saves, don't really trust someone elses computer to do as good of a job as I can myself. Wrote a script to automate it.
That's great, but maybe we should stop talking about you. People pay for Steam, Netflix and many other services because they don't want to write scripts. They want something convenient and easy to use. They also want additional functionality. You said how you back up save files, but nothing about achievements, time tracking, friends, screenshots sharing, guides, parties, etc.