I even provide the leaderboard backend for others to use in their games - I posted about it but so far nobody seemed to want to integrate it into their game. I needed to add a backend for level editor saving (so other people can make their own levels), so I figured global scores should be a thing as well ( in addition to local scores ). There are over 50 levels, I'll be playing to make sure I have the top score (stars and time) in many of them, just to challenge the public and show that all levels are solvable! ( except level 47 - lol )
https://github.com/pasciaks/alchemist