Online casino birthday bonus is a special promotion that many online gambling sites offer to celebrate a player’s birthday. This bonus typically includes free spins, bonus cash, or other rewards that enhance the gaming experience. Players can use this bonus to try new games or extend their playing time without risking their own funds. It’s a way for online casinos to show appreciation for their loyal players and create a festive atmosphere. To claim this bonus, players usually need to log into their accounts during their birthday month and opt-in to receive the celebration reward.