index.html

<div ng-switch on="page">
    <div ng-switch-when="create" ng-controller="CreateGameController">
      <!-- content -->
    </div>
    <div ng-switch-when="choose_players" ng-controller="StartGameController">
      <!-- content -->
    </div>

    <div ng-switch-when="game" ng-controller="GameController">
      <!-- content -->
    </div>
</div>