How to set a leaderboard?

I want to add a leader-board for the high scorers that play the game. If anyone can help please reply:)

YouTube Scoreboard guide

Ofc if You’re not asking about Android/iOS online leaderboard (it’s implemented in mobile example).

Epic Stream on Mobile Leaderboards, Achievements, and Ads

Thanks for replying but is this for the Mobile version or the desktop version because I need the desktop version.

Google Play Game providing API for c++ too.

Also You look other providers: