Online casinos often give players a no deposit bonus to be used on the slots games. Sometimes this is just a few credits or spins but now and then you may be surprised with a massive bonus you just cant refuse. You log into your casino account and there is a offer of 100% bonus on all your purchases up to a certain amount. This helps you get more play out of you money which can actually increase your odds of winning. However, the no deposit slots bonus is the best allowing you to play the games without worries. Getting those spins to have a good feel for the machines is pretty sweet, also getting credits to try out multiple games can be equally as nice. The free play bonus is a favorite among those that want to get more play out of the games as the credits are much higher. Disadvantage is your on a timer, which means you only get a small time period to play the games.
As your browsing around looking for a casino to play at, you may want to consider ones that are powered by microgaming as they do have to best selection of slot machines. You can check out the list of microgaming casinos here http://www.nodepositgaming.com/why-gamblers-love-no-deposit-microgaming-casinos.html and get more detailed information about why players love them. One thing is that they keep adding more slots games each month and they do have over 600 total games to play. From old time favorite 3 reels to the amazing video slots with so many features. This one you just have to check it out for yourself.