How to load language-specific templates in AngularJS?

If I'm reading this correctly you'd like to somehow use the culture parameter from the url route to determine which location to retrieve your template.

There may be a better way but this post describes retrieving the $routeParams inside a centralized controller with ng-include to dynamically load a view.

Something similar to this:

angular.module('myApp', []).
    config(function ($routeProvider) {
        $routeProvider.when('/:culture/:gameKey/:gameId/closed', {
            templateUrl: '/templates/nav/urlRouter.html',
            controller: 'RouteController'
        });
    });

function RouteController($scope, $routeParams) {
        $scope.templateUrl = 'templates/tradingclosed/' + $routeParams.culture + '_template.html';
    }

With this as your urlRouter.html:

<div ng-include src="templateUrl"></div>

You can define the controller you want to load in your views using ng-controller and access the $routeParams for the additional route parameters:

<div ng-controller="TradingClosedCtrl">
</div>

I've posted similar question with working Plnkr example of solution like @Gloopy suggested.

The reason why you can't implement that without ng-include is that routing is done in 'configuration' block, where you can't inject any values (you can read about these blocks in Modules documentation, section Module Loading & Dependencies

If you want not to introduce new scope, you can replace ng-include with my stripped version of ng-include directive, that do absolutely same that ng-include does, but do not create new scope: source of rawInclude directive

Hope that solution will satisfy your use case.