A UK casino deposit bonus is an enticing offer that rewards players for making their first deposit at an online casino. Typically, this bonus comes in the form of a percentage match on the initial deposit, allowing players to enjoy extra funds to explore games. For example, a 100% deposit bonus means if you deposit £50, you receive an additional £50 to play with. These bonuses often come with wagering requirements, so it's essential to read the terms and conditions. Overall, deposit bonuses enhance the gaming experience, providing more opportunities to win.