Can you imagine walking off the street into a casino and somebody greeting you at the door with a €50 or €100 note? Probably not and yet this is exactly what happens if you register with a new online casino and in fact the casino bonus that they offer will probably be even more. The most common form of casino bonus is what is called a first deposit matching bonus whereby online casinos will match your first deposit into the casino to a certain percentage which is often 100% and some will also offer a 50% match of your second or even third deposits. To take maximum advantage of this sort of online casino bonus you will to deposit the maximum amount that the offer is limited to and you may also find that there is a certain time frame during which you have to finalise the bonus. This type of casino bonus at an online casino is always placed in a bonus account which although can be used to play your favourite casino games cannot be withdrawn as cash before certain requirements have been met and these requirements are usually expressed as “play through requirement” which in effect means that you need to stake the bonus a number of times before it can be transferred to your cash account and withdrawn. Different online casinos have different play through requirements so you will need to read the terms and conditions of the online casino bonus carefully and also watch for whether the play through requirement is applicable to the casino bonus amount only or to your deposit plus the bonus amount. A further point to watch for to avoid disappointment is which casino games count towards the turnover requirement as it is quite common for relatively low risk games such as roulette to count only partially or even not at all to the casino bonus wagering requirement. Despite all this a casino bonus is a good thing as even if you are not lucky enough to turn it into cash at least you have had the fun of playing for longer.