An online poker deposit bonus is a promotional offer provided by poker sites to attract new players and reward existing ones. Typically, it matches a percentage of the player's initial deposit, allowing them to play with extra funds. For example, a 100% bonus up to $500 means that if you deposit $500, you'll receive an additional $500 in bonus money. These bonuses often come with specific wagering requirements, encouraging players to engage more with the platform. Overall, deposit bonuses enhance the gaming experience, providing players with more opportunities to win while exploring various poker games.