O backend do seu jogo Unity

using MajacloudSdk;
using UnityEngine;

public class GameStart : MonoBehaviour
{
    private async void Start()
    {
        // Restores the saved session or creates a guest
        var signIn = await Majacloud.Auth.SignInAnonymouslyAsync();
        if (!signIn.Ok)
        {
            Debug.LogWarning(signIn.Error.Message);
            return;
        }
        Debug.Log("Hello " + signIn.Value.DisplayName);

        await Majacloud.Leaderboards.SubmitScoreAsync("coins", 120);
        int damage = Majacloud.RemoteConfig.GetInt("enemy_damage", 25);
    }
}

extends Node

func _ready() -> void:
	# Restores the saved session or creates a guest
	var signed_in := await Majacloud.auth.sign_in_anonymously()
	if not signed_in.ok:
		push_warning(signed_in.message)
		return
	print("Hello ", signed_in.value.display_name)

	await Majacloud.leaderboards.submit_score("coins", 120)
	var damage := Majacloud.remote_config.get_int("enemy_damage", 25)

const mc = Majacloud.createClient({
  baseUrl: 'https://majacloud.majanite.com',
  projectId: '<project id>',
  clientKey: 'pk_live_…',
});

// Restores the saved session or creates a guest
const signIn = await mc.auth.signInAnonymously();
if (!signIn.ok) throw new Error(signIn.error.message);
console.log('Hello ' + signIn.value.display_name);

await mc.leaderboards.submitScore('coins', 120);
await mc.remoteConfig.fetch();
const damage = mc.remoteConfig.getInt('enemy_damage', 25);

export PROJECT_ID="<project id>" CLIENT_KEY="pk_live_…"

# Create a guest; keep access_token and refresh_token from the response
curl -X POST https://majacloud.majanite.com/v1/auth/guest -H "X-Project-ID: $PROJECT_ID" -H "X-Client-Key: $CLIENT_KEY" \
  -H "Content-Type: application/json" -d '{}'

export TOKEN="<access_token>"
curl -X POST https://majacloud.majanite.com/v1/leaderboards/coins/scores -H "X-Project-ID: $PROJECT_ID" -H "X-Client-Key: $CLIENT_KEY" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" -d '{"score": 120}'