A Bonus on First Deposit is a promotional offer provided by online casinos and betting platforms to attract new players. When users create an account and make their initial deposit, they receive a percentage of that amount as a bonus, which can be used to play games or place bets. This incentive not only enhances the gaming experience but also increases the chances of winning without risking too much of one's own money. It's a great way for newcomers to explore the platform and enjoy additional gameplay right from the start.