Deposit bonus - You get a bonus credit according to the amount you have deposited. Most commonly you get 50%, or 100% of your deposit, and sometimes even 200% or 300% or more. The maximum bonus amount is usually limited. Deposit bonuses are promoted by offering deals like "150% bonus up to €150". However, watch out for other bonus conditions, especially wagering requirements and maximum withdrawal limits, which are both very important.
No deposit bonus - It is popular especially among so called freebies, players who want to win money without taking any risk. It is most often given for registration, with no need to deposit any money. Usually, it amounts to around 5€ to 20€, and meeting the conditions of this type of bonus is usually quite difficult. No deposit bonuses are the most sought-after type of online casino bonuses.
Free spins - You don’t get free money, but you get free spins on selected popular slots with prepaid credit. Any winnings aren’t immediately credited to your account. They form a bonus credit, which requires you to meet the additional conditions (like with no deposit bonuses). Only after fulfilling these conditions will the casino credit your account with real money, which you can then withdraw.
Cashback - The casino returns a portion of the money you have lost.
Loyalty program - Every casino tries to keep the top players, and softens them up with something special. Benefits offered in loyalty programs are hard to pigeonhole. Most often they include e-shops with promotional items that can be bought with loyalty points, exclusive games, or competitions between players for jackpots or holidays abroad. Further popular benefits include lower wagering conditions for bonuses, higher game limits and even higher withdrawal limits.