Online Slots Casino 2023

There are a great many Slots online casinos for you to choose from, and that can make it difficult to get going. Starting with a list such as ours is a good way to ensure you’re choosing from the very best Slots casinos, but how to decide from those?Fortunately, we rate and review our recommended Slots casinos on a number of different criteria. These can be seen either in the list above, or by clicking through to your prospective casino’s review page. Here’s some aspects of online Slots casinos for you to look out for:

  • Number of games – the vast majority of these will be Slots games, so this figure is a big help in assessing the size of a Slots casino’s library
  • Bonus amount – the best Slots casinos know that competition for loyal players is fierce; you should expect a sizeable bonus for making a deposit
  • RTP percentage – try to ensure you choose a Slots casino offering over 95% RTP
  • Payment options – check that the casino makes and accepts payment using your preferred method to avoid disappointment
  • Check for certifications – the footer of the Slots casino website should display some accreditations and logos which speak to its authenticity

Slots Online: What Is An RNG?

Random Number Generators (or RNGs) are what make online Slots work; they constantly generate numbers which correspond with the symbols on the reels. When you press the spin button, a number is generated, thereby deciding the result of each spin.

An RNG is like a computer program. A series of instructions, called an algorithm or formula, is used for generating the numbers. There will be numerous combinations that simply cannot come about, and each full set of combinations (possible spin outcomes) is called a cycle. However, this doesn’t mean Slots have ‘cycles’ of winning and losing.

It is similar to picking numbers out of a hat. But instead of keeping the number out of the hat and picking again, the number is put back into the hat, and you randomly choose again. The second time, you might pick that same number, or you might not.


In the past, you could only play Slots when you were fortunate enough to be in an area of legalized gambling such as Las Vegas, Atlantic City or an Indian casino. Now, thanks to online casinos, Slots games can be accessed easily via your computer or mobile phone.

Playing online Slots is simple and entertaining. There’s no need to learn a complex set of rules, or even a strategy. Just sit back and relax as you spin the reels in hope of that life-changing jackpot.

Online Slots Offer Better RTP Percentages

Real-life Slots play used to be dominated by the hunt for ‘loose’ machines that were more likely to pay out. Some players felt that the looser machines were at the front of the casino where passers-by could see them being hit. Others felt that you could only find a loose machine in a bank of tight machines.

With online slots, the hunt is made very simple. You can find out specifically what the average return to player (RTP) percentage is for all online Slots games, and simply choose the highest ones. Online casino Slots will typically offer an RTP of at least 95%, with the best online Slots offering even more. To put that into perspective, consider that the best Slot machines in real life usually offer an RTP of only 90%.

The Vast Selection Of Online Slots Games

It is true that there are many different Slots games to choose from in a real-life casino. But the number of machines is still finite and there may not be any seats available for the game you like to play. Fortunately, this is never a problem with online Slots.

First of all, there is a huge range of online Slots games for you to choose from – varying in complexity, variance, graphical theme, and game mechanics. And just as importantly, any online casino Slots game you would like to play is available 24/7 as long as it is still supported by the provider.

Play Online Slots With Real Money

It is possible to play Slots online without making deposits just by heading to one of the well-known online Slots casinos and using their practice mode. This option is generally available for all the best online Slots. But most players quickly find that this lacks the inherent thrill that comes from playing online Slots with real money.

When you hit that jackpot, you want to be able to claim the money and spend it out in the real world. Playing real money online Slots enables you to do this, whereas any wins accumulated on a free game will disappear as soon as you leave the page.

Online Slots Bonuses

When you’re looking for a casino where you can play Slots online, bonus offers should be at the front of your mind. The great thing about playing online Slots with bonuses is you aren’t necessarily risking any of your own money.

In the majority of cases, you will get the best possible Slots bonus by making a deposit – here at we’ve collected the best online Slots bonuses in one place for you. All of the best Slots casinos listed above offer fantastic online Slots bonuses as incentives for signing up.

Play Online Slots On Mobile

This is a huge benefit if you are the kind of online Slots player who doesn’t have a great deal of time to sit at home and play Slots games online. Now you can enjoy playing the best online Slots anywhere you like, so long as you have an Internet connection – whether you’re on the bus, at the airport, or in the waiting room.

The number of people playing online Slots on mobile has seen a huge surge in the past few years, and shows no signs of slowing. Now all of the best online Slots game developers are ensuring that their games are compatible with mobile devices. And all the best Slots casinos either offer an app, or more commonly, make their website fully accessible to mobiles.