Home / Best Online Slots Sites

Best Online Slots Sites

Newly updated for February 2020

Slots are one of the most popular games to play at casinos all over the world. As one of the quickest and easiest casino games to play, it’s easy to see why so many people love casino slot games. Modern slots feature some amazing graphics and features to make them even more exciting.


With the sheer number of sites offering online casino slot games it can be hard to pick between them. At Xfire, we play hundreds of different slot games at loads of different casinos and choose the very best to feature on our site. We search through all of the latest online casinos and the tried and tested big names to discover who has the best slots.


All of the sites on this list feature amazing slots, exciting prizes and the very latest casino slot games for you to enjoy.

Top Slot Sites - February 2020

What’s So Good About Online Slot Games?

Lots of people prefer slots to other casino games such as Blackjack or Roulette, but what makes them so exciting?

Easy Gameplay

First off, the best online slot games are simple to play. A lot of other casino games have lots of complicated rules and conditions which can be confusing, especially if you’re a beginner. There’s usually no strategy involved with slots, you just spin and rely on luck to win.

Exciting to Play

Modern slot games feature lots of exciting and colorful graphics. Different games will also involve different themes and animations to make the slots more interesting and unique to play. On top of this, many slots offer big bonuses to allow you to win huge prizes.

Perfect for All Types of Players

Whether you’re a complete beginner or a serious casino player, there are slots out there perfect for you. The great thing about slot games is there are options for players no matter the size of your bankroll. You can bet big or small depending on which you prefer.

Huge Variety

Nothing can compare to the huge variety of different games offered by slots. Casino games may have different variations but each online casino has hundreds of different slots. New slots are being produced all the time too so you can always find something new and exciting to play.

Different Slot Game Types Available

Although there are thousands of unique slots games out there, they tend to be categorized into three main categories.

Classic Slots

These are the original style of slot games, based on the classic casino slot games. If you’d like simplicity or are just getting started with slots, these are your best bet. You’ll find hundreds of different classic slots at all of the top casinos featured on our site.

Classic slot games tend to feature 3 reels and between 1 and 5 paylines. This makes them much easier to play than some other game types. There are loads of different classic slots available from all of the major iGaming developers. Examples of popular classic slots include MegaJoker by NetNet and Alchemists Lab, developed by Playtech.

Video Slots

Video slots make up the majority of the best slot games you’ll find online. They usually feature several different reels and multiple paylines, offering loads of different ways to win. Video slots tend to be the most popular games to play thanks to the exciting and colorful graphics, entertaining themes and unique animations.

Video slots also often include bonus features to help keep things interesting for returning players. These slots will sometimes have wilds, scatters, multipliers and free spins which make games more exciting. Wheel of Fortune by IGT and Starburst by NetEnt are examples of popular video slots.

Progressive Slots

Progressive slots offer a slightly unique approach to online slot games. They feature a jackpot which increases each time a player places a new wager. Over time the jackpot grows, sometimes reaching into the millions and is eventually won by lucky players or player.

Although progressive slots offer much bigger prizes than their counterparts, they do pay out less often so you should be aware of this before playing. If you enjoy taking a bigger risk to get a bigger reward then progressive slots could be perfect for you. Popular examples of progressive slot games include Mega Moolah by Microgaming and Mega Fortune by NetEnt.

How to Play Best Online Slots

Slots can often seem a bit daunting at first, especially if you’re playing a newer video slot with lots of different options and bonuses. Follow our step by step guide to get to know slots and start playing today!

Step 1

First off, pick your slot game and open it up. Your screen will be filled by the reels of the slot machine and the operating buttons like “Spin” and “Max Bet”. You should also be able to see your bankroll, the amount you have available to wager, in the corner of the screen.

Step 2

Next, take a look at the paytable. This tells you the key information about the particular game. You should look at how much each symbol is worth and the winning conditions.

Step 3

Choose how much you’d like to bet and how many paylines to use. A payline is the combination of symbols that results in a win. You can increase the number of paylines to increase the chance of winning but you’ll also increase your stake. Usually, there’ll be a “Max Bet” button to select all paylines at once.

Step 4

Click the “Spin” button to spin the reels and play the game. If you win the game will show you how much you won and sometimes will offer the chance at a bonus game to win bigger prizes. Keep spinning as much as you want, but remember to keep an eye on your bankroll.

Free Slots

Remember that if you’re not sure how a game works you can usually play a free demo version of the game to test it out. Most of the top casinos featured on our sites allow you to play the best online slot games for free. These free slots are a great way for beginners to learn how online slot games work and prepare for the real thing.

In-Game Slot Bonuses

Some online slot games will feature special bonuses and other features. These might be confusing at first but once you understand them they help to make the games more exciting and fun to play.

Here are a few different bonuses that you might encounter whilst play online slots:


Wilds are symbols which act as a substitute for other symbols to help you win. For example, if you need five 7 symbols but get four 7 symbols and a wild, you’d still win.

Stacked Wilds

These wilds can stack up, potentially covering the entire reel and increasing your chances of winning.

Expanding Wilds

Expanding wilds will expand and substitute multiple symbols across the reel and hopefully help you to win big.

Sticky Wilds

Sticky wilds will stay in place for several spins. They can help to increase the odds of you winning for multiple spins.


A scatter can unlock special features such as free spins, bonus rounds, and even mini-games. These all give you the chance to win more prizes.


Multipliers are everyone’s favorite, if you get these in a winning spin you can massively increase your winnings. Some games even have the chance to stack multipliers, giving you the potential of winning huge prizes.

Return to Play Rates and Variance of Online Casino Slots

Return to Player (RTP)

Before getting started with online slot games you should first understand return to player rates (RTP). RTP is shown as a percentage and is an indication of the likelihood of a slot paying out.

The RTP shows the percentage of bets which are programmed to be paid out over time. So a slot game with an RTP of 90% will pay out 90p for every £1 that you wager on that game. Most slots you’ll find online have an RTP over 90% and all of the casinos in our top online casino list feature games with fair RTP percentages.

Any game with an RTP rate of above 97% can be considered a high paying game. However, it’s not quite that simple. The RTP is a theoretical number that’s based on infinite playing time. Because of this, the payouts you get from playing a game for a short period can vary a lot.


RTP percentages aren’t the only thing that affects how a game pays out. A high RTP doesn’t necessarily mean you’ll have a higher chance of winning. Something called variance also affects the payouts. Variance is used to refer to the frequency and size of the payouts from a particular slot game.

If a game has low variance it will pay out small amounts frequently whereas a high variance means that wins will be less common but larger. Progressive slots are an example of slot games that tend to have a high variance, prizes are won rarely but tend to be very large.

You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us!