Reach new players with Game Center dashboard

// Authenticate the local player
import GameKit

class TitleScreenViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Authenticate the local player
        GKLocalPlayer.local.authenticateHandler = { viewController, error in
            if let viewController = viewController {
                // Present the view controller from Game Center.
                return
            }
        }
    }
}

// Authenticate the local player
using Apple.GameKit;

public class MyGameManager : MonoBehaviour
{
    private GKLocalPlayer _localPlayer;

    private async Task Start()
    {
        try
        {
            _localPlayer = await GKLocalPlayer.Authenticate();
        }
        catch (Exception exception)
        {
            // Handle exception...
        }
    }
}

// Show the Access Point
import GameKit

class MenuScreenViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        GKAccessPoint.shared.location = .topLeading
        GKAccessPoint.shared.isActive = true
    }
}

// Show the Access Point
GKAccessPoint.Shared.Location = 
    GKAcessPoint.GKAccessPointLocation.TopLeading;

GKAccessPoint.Shared.IsActive = true;