Our game offers both official and private servers.
PlayFab's Server.AuthenticateSessionTicket(...) requires a title secret key in the request header. This is not an issue for official servers as we are in control of the infrastructure and can provide our own secret key, however how would private servers handle authentication? Currently we are using Steam's anonymous ISteamGameServer.BeginAuthSession(...) to authenticate connecting Steam players. Is there an anonymous alternative on PlayFab's side that we are missing?
How are other titles handling this issue?