factory.coffee

Api = ($http) ->
  {
    games: {
      query: ->
        $http.get('/games', params: {format: 'json'})
    }
  }

angular.module('got').factory('Api', ['$http', Api])

service.coffee

Api = ($http) ->
  this.games = {
    query: ->
      $http.get('/games', params: {format: 'json'})
  }
  return

angular.module('got').service('Api', ['$http', Api])

service.js

// better look
Api = function($http) {
}

Api.prototype.games = function() {
  return {
    query: function() {
      $http.get('/games', params: {format: 'json'});
    }
  }
}

angular.module('got').service('Api', ['$http', Api]);