No Hidden/Secret Achievement Support

[Darkenend]

Currently on the documentations, we can't set a game's achievements as hidden, this causes that some games with hidden achievements in other platforms, are displayed and could be relatively spoiler-y, an example of how it currently behaves is here.

[apawlowskij]

Thanks for your feedback.
Providing achievements definitions via the plugins is something we were considering, but it is too much effort with a little extra value. Achievements definitions are global for the whole platform and somewhat static, so can be just predefined (read, "hardcoded") for now. The goal offcourse, is to have this done by the plugins, so adding new platforms is easy and convenient for our beloved community, but for now we'll just stick with this.
Secret achievements are on our backlog, but I cannot give you any ETA on that.
I'm sorry for the inconvenience this caused.

[Keristero]

I'd also like to be able to add a list of all the unlockable achievements for a title.

[EzioTheDeadPoet]

I know have the issue that Achievements that should be displayed to me since I unlocked them are marked as hidden. For GOG games I can see them by opening the progress tab but for games from other platforms this isn't working. Also It would be nice if unlocked achievements would simply loose their hidden status for the person that unlocked them everywhere.