A deposit casino bonus is a promotional offer provided by online casinos to incentivize players to make a deposit. Typically, this bonus matches a percentage of the player's initial deposit, giving them extra funds to play with. For example, a 100% bonus on a $100 deposit would provide an additional $100 in bonus money. These bonuses often come with specific wagering requirements, meaning players must bet a certain amount before they can withdraw any winnings. Overall, deposit bonuses enhance the gaming experience, allowing players to explore more games and increase their chances of winning.