If an online slot casino meets the above conditions, it will have a place on our list of the best online casinos. In this way, you can be sure of having only the best games and the widest variety of slots at your fingertips for both your desktop computer and your mobile device. The welcome bonus will help you multiply your starting bankroll, and the software, the variety of deposit and collection methods, and the efficient customer service will make your gaming experience fun and rewarding. In addition, we revisit our listings frequently to ensure that the casinos we recommend continue to perform at the expected level.

Variety of slots

All the online casinos on our lists offer a wide variety of slot machines for players to enjoy, from the classic to the most innovative video slots with a very diverse theme. Any of our recommended online games ensures you an exciting experience, whether in three or five reel format. After all, the idea is to have fun, right? We look for those casinos that offer a lot of free slots, so you can play for fun; and also sites with excellent real money slots, if your thing is the thrill of betting cash.

Quality software that guarantees fair and safe play

The best sites will offer you software from the leading developers on the market. Names such as NetEnt, Playtech or Micro gaming guarantee slots with spectacular and very dynamic graphics, which will appear before you in a fluid way and ensuring great play ability no matter what device you are playing from. Similarly, if you play online slots for real money, you want your money to be safe and in good hands. Trust our recommendations and rest assured that all the online casinos on our lists are fully licensed by the General Directorate for the Regulation of Gambling. We also guarantee fair play, thanks to the use our best sites make of random number generators.

Succulent welcome bonuses and the best payout percentages

Any reputable online casino worth its salt will provide a generous welcome bonus. This is especially true when it comes to slots, which are often the game that gives you the most options in order to unlock these coveted bonuses. All of our top rated sites offer interesting bonuses to make your first steps into the world of online slots easier, to the point of even offering free spins! In addition, these slots offer high payout percentages so that you get the highest possible profit for your bet. Take advantage of the multiple banking options to withdraw your real money easily and quickly, and enjoy your earnings in just a few hours.