C#
#Called by Unity Engine
void Start () {
    var gameID = 'Your Game ID Here';
    var gameToken 'your Game Token Here';
    GameFuse.SetUpGame(gameID, gameToken, GameSetUpCallback);
}

#This will be called when game is connected to server
void GameSetUpCallback(string message, bool hasError) {
    Debug.Log(hasError ? "Error connecting game: "+message : "Connected!");
}

#Feed in your users email, username and password here, call this function when sign up button is hit
void SignUp (email, password, password_confirmation, username) {
    GameFuse.SignUp(userEmail, "password", "password", username, SignedUp);
}


#This will be called when user is signed up
void SignedUp(string message, bool hasError) {
if (hasError)
{
    Debug.Log("Error signign up: "+message);
}
else
{
    Debug.Log("Signed Up: " + GameFuseUser.CurrentUser.GetName());
}
}