Add leaderboards to an app version - Configure Game Center - App Store Connect - Help - Apple Developer

Leaderboards can be added to your app version once configured. For information, view Configure leaderboards.

Unity - Manual: iOS Player settings

Bring Recurring Leaderboards to your game - WWDC21 - Videos - Apple Developer

Game Center Overview - Apple Developer

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Enabling and configuring Game Center

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Create groups - Configure Game Center - App Store Connect - Help - Apple Developer

ios - Unable to Enable Game Center for my App - Stack Overflow

Enable an app version for Game Center - Configure Game Center - App Store Connect - Help - Apple Developer

Unity - Manual: Configuring for Apple App Store and Mac App Store

Chapter 16 Adding Leaderboards and Achievements, Apple Game Frameworks and Technologies by Tammy Coron

How to Implement a GameKit Leaderboard in SwiftUI

How to use Game Center on iPhone & Mac

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