A casino bonus deposit is an enticing offer provided by online casinos to attract new players and retain existing ones. Typically, it involves matching a percentage of the player's initial deposit, allowing them to play with extra funds. For example, a 100% bonus on a $100 deposit gives the player an additional $100 to wager. These bonuses often come with specific terms, such as wagering requirements, which dictate how many times the bonus must be played through before withdrawal. Overall, bonus deposits enhance the gaming experience, providing players with more opportunities to win.