RetroAchievement.org achievement category
http://retroachievements.org/ is a platform which provides achievements for retro games running in emulators, Currently there are only achievement categories for Steam, PSN and Xbox.
If we had a RetroAchievements category we could add achievements to thousands of games which may never have achievement's otherwise. It would be very cool for things like GOG Galaxy 2.0 integration plugins
This is interesting for sure, we would have to look into it. One thing that comes to mind is whether or not those achievement lists are official, or approved by the original developer/publisher, as this could prove tricky from an IP perspective. Since we would redistribute the data, we’re very careful about the source and provenance.
We’ll be looking into this internally first. Thanks!