Xbox Live Creators Program is described as 'With the Xbox Live Creators Program, anyone can integrate Xbox Live into their title and publish to Xbox One and Windows 10. With Xbox Live you can create a connected game experience that will give gamers even more reasons to keep playing'. There are five alternatives to Xbox Live Creators Program for a variety of platforms, including Windows, Linux, Online / Web-based, Mac and Android. The best alternative is Steamworks. It's not free, so if you're looking for a free alternative, you could try Photon Engine. Other great apps like Xbox Live Creators Program are Unity Multiplayer (Paid), SocketWeaver (Paid) and SmartFoxServer (Paid).
Global cross platform multiplayer game backend as a service (SaaS, Cloud) for synchronous and asynchronous games and applications. SDKs are available for android, iOS, .NET., Mac OS, Unity 3D, Windows, Unreal Engine, HTML5 and others.
SocketWeaver offers: 1. Lobby clusters in North America, Europe, and the Asia Pacific. 2. Game servers on a global scale. 3. Unity SDK that tightly integrated into the Unity Editor. 4. 20GB Free data (Renewed monthly).