No, no deposit bonuses are not only available to new players. Some online casinos offer no deposit bonuses to their existing players as a loyalty reward or to promote a new game. These bonuses may come in the form of free spins or bonus cash, and the terms and conditions may differ from those for new players. If youre an existing player, be sure to check the promotions page or contact customer support to see if there are any no deposit bonuses available for you.