Access Steam features such as the user details, overlay, achievements, DLC, rich presence, and more.
In my case I found the steam overlay fallback approach works for windows and Mac OS but not Linux ( Ubuntu in my case ). BTW - Is there plans for the steamworks addon to implement steam leaderboards via their API? This addon could really do with this feature. I understand the Steam4C2 Plugin used to have this ability? If there are no plans what is the current options to implement steam leaderboards?