code: function(id, gameGroup, options) {
    options = options || {};
    this.id = id;
    this.gameGroup = gameGroup;
    this.players = {};
    this.numPlayers = 0;
    this.sendQueue = [];
    this.options = options;
    this.setGameId();
    debug("create game " + this.gameId);
  }
docs: @typedef {object} Game~Options
   
  Represents one game running through the relaysever.
  
  @constructor
  
  @param {string} id id of game
  @param {GameGroup} gameGroup the group this game belongs to.
  @param {Game~Options} options