The Best Online Slot Sites & Top Real Money Slot Games of 2021

Online slot games are a huge draw for casino sites, with many players looking to access their favourite titles at such places. It’s not so surprising that this is the case either, considering there are so many different slots at online casino sites, featuring a variety of themes, inbuilt features and betting ranges. Not only that, but you can obtain a selection of payouts from playing these engaging slot machines.

Through this comprehensive guide to online slot games, we’ll be taking you through all the features of them. So, we’ll look at the different slot types, what they each bring to the table, how you can enjoy them, and which slot developers are considered the best. Therefore, you can potentially find a favourite slot by browsing through it. So, let’s take a look at find out what sort of gaming experience you can have when engaging in these online casino games.

Top 10 Online Casinos for Playing Slots

There are many online casinos operating today, and many of them provide some of the best online slots available. Of course, it’s beneficial that you get to know which sites are the very best for playing slots online. At least this way, you can find out which the most popular games are and also what these casinos are able to provide alongside the slots. If you’re looking to play online slots, then these stand out as being the very best casinos to do so at.

  • Slot Title
  • Pay Back
  • Key Features

  • Slots: 1,000+
  • Win Ratio: 96.35%
Welcome Bonus: 100% Up to $300Play NowOur score:
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  • Slots: 180+
  • Win Ratio: 94.15%
Welcome Bonus: 100% Up to £500Play NowOur score:
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  • Slots: 1,000+
  • Win Ratio: 97.5%
Welcome Bonus: 200% Up to €5000 + 50 Bonus SpinsPlay NowOur score:
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  • Slots: 800+
  • Win Ratio: 97%
Welcome Bonus: 100% Up to $100 + 300 Free SpinsPlay NowOur score:
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  • Slots: 2,000+
  • Win Ratio: 96.5%
Welcome Bonus: 30 No Deposit Free Spins + 100% Up to £300Play NowOur score:
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  • Slots: 800+
  • Win Ratio: 97%
Welcome Bonus: 100% Up to £50 + 100 Free SpinsPlay NowOur score:
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  • Slots: 1,000+
  • Win Ratio: 96%
Up to £400 in Welcome Bonus Offers + 100 SpinsPlay NowOur score:
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  • Slots: 800+
  • Win Ratio: 96.62%
Welcome Bonus: 100% Up to £200Play NowOur score:
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  • Slots: 500+
  • Win Ratio: 96.35%
Welcome Bonus: Up to £70 in Casino Games BonusesPlay NowOur score:
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  • Slots: 500+
  • Win Ratio: 95.93%
Welcome Bonus: 50 Free Spins on StarburstPlay NowOur score:
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Why Play Online Slots?

Playing online slot games can be one of the most exciting activities to undertake at casino sites. There are so many different types of slots, including their inbuilt mechanisms, special features, themes and so on. Furthermore, you can find differences between a traditional slot and the more modern video slots available. Essentially, playing online slot games can provide you with such a diverse sector to involve yourself in.

Online slots are also highly convenient, affording you the ability to enjoy gameplay from the comfort of your home rather than having to go out to a land-based casino to access them. Not only that, but they’re also accessible from mobile devices now. Therefore, playing slot games from any location this way is highly possible.

It’s not only that though, but online casinos frequently provide welcome offers, deposit bonuses and so on, as well as free spins that can be used on online slots. By accepting free spins rewards, you’re essentially able to check out one or more slots without using your own money for such. Casinos know that the slots online are one of the biggest draws for players, so offering promotions on these games is a wise marketing ploy. And those rewards benefit you as the player, too.

To add to that, the stakes that you can play with are highly flexible in most online casino slots. This means that they cater to both newcomers and experienced players, allowing for wagers to suit any bankroll. To coincide with this, most video slots released today are accessible in free play mode too, so you’re able to access them in demo mode. While this doesn’t provide you with online slots real money payouts, it does give you the chance to enjoy what a slot game is offering and see how it works without putting your own money at risk.

Last of all, it’s prominent to note that playing both classic and video slots online caters to players more so, because most casinos accept a wide range of payment methods. So, regardless of if you intend to deposit with credit card, e-wallet like PayPal, prepaid card, cryptocurrency or anything else, there’s likely a casino suitable for you in this respect.

Online Slots Variation

While many people would likely bracket all online slots into one and the same category, there are actually a few different varieties of such. So, while someone may have a favourite slot that is a classic slot, someone else may prefer progressive jackpot games. So, what are these different online slots variations?

Classic Slots

Classic slots, also known as traditional slots, usually take on the visual setup of having three reels for you to spin. At the same time, if you choose to play slots of this nature, you’ll find that they come with a small number of active paylines. This can be anywhere between 1 and 10 paylines for the most part. Essentially, casino classic slots are a lot simpler and don’t feature as many, if any, inbuilt special features to trigger.

Classic Online Slots

Progressive Jackpot Slots

It’s always nice to have the possibility of winning a huge jackpot from an online casino game, regardless of if that comes from playing blackjack or playing slots. There’s a heightened gaming experience when it comes to progressive jackpots though, as you can see the total of the jackpot increasing in front of your very eyes. Different titles in this genre will have different methods by which you will be able to win the progressive amount, so check into the paytable and T&Cs of these games to find out how it works before spinning the reels.

Jackpot Online Slots

Branded Slots

Online slot developers know that there are certain films, books, TV shows, musical acts and so on that appeal to great numbers of people. That’s why they’ll usually put a prime focus on these particular areas when creating slot games. A branded slot basically utilises that brand and incorporates it as the theme of the online slot. So, if you’re a fan of a television show or a film that has a connected slot game, it’s likely that the game will appeal to you as well.

Branded Online Slots

Video Slots

These are the much more modern online slot game, featuring at least five reels and multiple paylines. In fact, these lines can increase to such lofty heights that the Big Time Gaming (BTG) company has created a Megaways™ function that allows you to win in up to 117,649 ways. Video slots also tend to incorporate much more thematic imagery, special bonus rounds like free spins and gamble features, and often give you the ability to obtain big wins, too.

Video Online Slots

How to Play Online Slots

New players to online slots may not know how to proceed with playing them, so here’s a step-by-step guide on accessing them and placing bets.

  1. Locate one of the best online casino slots sites and register for an account.
  2. Visit the cashier and make a deposit using one of the various accepted payment methods. If you’re intending to obtain the welcome bonus, be sure to deposit the minimum amount so that you qualify for it and any free spins.
  3. Load one of your favoured casino games up. If you have received free spins, be sure to read the T&Cs to find out which game they’re available on.
  4. Select the type of bet you would like to place when you’re ready to use your own real money.
  5. Set the reels off spinning with the spin button and see if a winning combination is formed.

Top 10 Real Money Slots

With there being so many online slot games available, it’s key to note that some of these are much better than others. That’s why we have gathered a collection of the greatest ones together for you to check out, so that you can play them and potentially find your new favourite slot game. Because these are the top 10 real money slots, the likelihood is that you can find them in the lobbies of the vast majority of online casino platforms. So, which games are considered as the best online slots of today?

  1. Starburst – RTP: 96.09%
  2. Desert Treasure – RTP: 97.1%
  3. Rainbow Riches – RTP: 95%
  4. Gonzo’s Quest – RTP: 95.97%
  5. Age of the Gods: Furious 4 – 94.88%
  6. Cleopatra – RTP: 95.7%
  7. Irish Eyes – RTP: 95.1%
  8. Bonanza: Megaways™ – RTP: 96%
  9. Leprechaun Goes to Hell – RTP: 96.54%
  10. Deal or No Deal: Megaways™ – RTP: 95.72%

Play Your Favourite Slots Titles at the Best Online Casinos

Online Slots Developers

There are numerous online slots developers in operation today, with the number of such having swelled significantly since the advent of online gambling. Naturally, some of these software providers have risen to the top of the pack, while others haven’t had quite the same level of success. However, the fact that there are so many competing by releasing exciting and innovative online slot games means that there are plenty of titles for players to access.

So, which companies can be considered as the very best for online slots? Well, the list of the top slots above features games from brands like Netent, IGT, Playtech, Play’n Go and Barcrest, amongst others. Those are just five of the companies that can be considered the top ones. However, casino slots have been crafted by several others, including the following brands:

  • Playtech – responsible for being the largest online software developer in the world.
  • Netent – lauded as one of the best for its graphics and inbuilt slot features.
  • Big Time Gaming – known for the creation of the Megaways™ function.
  • IGT – a brand that is known worldwide for land-based and online slot machines.
  • Yggdrasil – highly-regarded for its modern and inviting slot themes.
  • Microgaming – functioning as one of the longest-running software developers.
  • Betsoft – well-known for its dedication to high-quality 3D slot releases.
  • Thunderkick – frequently regarded as quite the exceptional company for innovation.
  • Play’n Go – provides its games to a large number of online casinos.
  • Barcrest – creator of the Rainbow Riches series of games.
  • Novomatic – one of the largest producers of slot games in Europe.
  • Blueprint Gaming – founded in the United Kingdom and known for its branded slots.
  • WMS – started out creating physical fruit machines before branching out into the online sector.

Online Slot Bonuses and Free Spins

One of the best parts about playing online slot games is that casino sites often provide exciting bonuses and free spins to use with them. These will outrightly differ from casino to casino, but they ensure that your casino experience and gaming experience is heightened from the get-go in most cases. What should you expect from these online bonuses, though? And how do you get to receive them as a player?

An online casino usually invites people to sign up for a free account by promising them a bonus reward once they make their initial deposit. This often goes by the name of a welcome bonus or first deposit bonus. Therefore, new players will be able to benefit greatly from obtaining such. Welcome bonuses are often the most diverse, either featuring bonus funds that can be handed out on any number of initial deposits, free spins to use on one or more slot games, or a combination of both of these.

Free spins bonuses aren’t always provided as a welcome to a casino site though, and neither are bonus funds. In fact, regular players can also get their hands on such, as many casinos also provide ongoing slots rewards. These most frequently require the player to make a minimum deposit of a set amount, and then a percentage of that is given out as a bonus reward or a set of free spins are provided.

With regard to free spins, these are exactly as they sound – a set of spins of a game that you can take for free. These are much sought after by slots players, as they are specific to slot games, and allow for free gameplay to occur. That’s why you’ll always find that online casino sites with free spins as part of their welcome offer will likely stand out to slot gamers more than those that don’t.

It’s important to remember to check the terms and conditions of all offers provided by casinos, too. These will dictate wagering requirements of free spins bonuses and deposit bonus offers to you that need completing before you can withdraw. Online slots games are usually able to be played so as to complete these, with 100% of your wagers usually catering to such. On the other hand, if you were to play something like roulette or blackjack, your bets wouldn’t contribute completely or at all to the completion of such. So, if you’re claiming an online slots bonus, be sure to check out the T&Cs first.

Mobile Slots

Today’s online slot releases are also frequently adapted so as to cater to the mobile gaming market. This comes quite easily with most companies utilising the HTML5 technology for their creations. Therefore, when you play online slots via a smartphone or tablet, you will get to see them in the same high level of quality as you would through a desktop computer. You can find mobile devices from Android and iOS that allow you to easily access online casino games, including slots. Therefore, while you’re out and about, you can continue playing your favourite slot(s) from any location.

Our Expert Tips to Improve Your Experience Playing Online Slots

There are numerous pieces of information that we can give to you in order to heighten your online experience with slot gaming. Of course, you have to play them however you feel most comfortable, but take into consideration some of these tips when you do decide to spin the reels of the games:

  • Engage in responsible gambling when accessing online slot games. Don’t let some sort of Vegas-style playing symptom overtake you. It’s important to be careful with your funds and only gamble with money that you know you can afford to lose. Slots can be addictive enough that you get caught in a downward spiral, so be sure to set yourself an affordable budget when choosing to play slots.
  • Don’t go chasing your losses. This can lead to you simply betting more and more and more, and before you know it, you’ve lost even more than you had before. You need to accept that losing is going to be a part of your slot gameplay. Nobody wins on them every single time, and it is for this reason that you should also check into the return to player (RTP) rate and volatility level of a game. These pieces of information will tell you how much you can expect to get back from a slot and how frequently payouts will come.
  • Place smaller bets to begin with, especially if you’re a new player. Casino slots may have a simple method of gameplay, but this shouldn’t be something that takes you down the path of placing high bets. Starting out small will allow you to grow the bet at a later stage if you feel comfortable doing so. Blowing all your bankroll in a couple of silly high bets is not the way to proceed with slot gaming.
  • Enjoy the inbuilt slot features, such as multipliers, bonus rounds and free spins. These will always prove to be exciting parts of accessing such casino games, as they frequent provide big wins as a result of triggering. And having fun is one of the biggest necessities when it comes to choosing to play slots. If it’s not fun, then it’s better to walk away.
  • Choose a slot that caters to your personal preferences. And while we do mean select a game that has a theme you enjoy; this is not the only thing we’re speaking of here. You should select a casino slot that offers a betting range that is suitable for your bankroll, too. Plus, a game that is suitable for you with regards to volatility. If you’re happier receiving payouts on a more frequent basis regardless of their size, then a high volatility slot won’t sit right for you.

Summary

Online slots already exist as fascinating and popular online casino games, and the likelihood is that this will remain the case as the years proceed. There’s no doubt that this is because there are some prolific developers creating these games, and that they include exceptional themes, inbuilt features, betting ranges and so on. Plus, with casino sites providing players with exciting promotions, what more could you want? As long as you play safely and responsibly, you can always have a good time with online casino slots.

FAQs

Are online slot games safe and regulated?

As long as the slots come from reputable and regulated software developers, then yes. The games will have gone through third party independent auditing before being released to online casino site for people to play. This ensures that they are safe and fair to access. Furthermore, the casinos providing such should hold official licences from the UK Gambling Commission, Alderney Gambling Control Commission, Malta Gaming Authority or any other licensing bodies. The Gambling Commission etc. ensures that casino sites adhere to high levels of security and safety for players.

How are wins formed on slot games?

Wins will form when a combination of the same symbol appears on the included paylines. Obviously, the more paylines an online slot features, the general theory is that there are more ways to create wins. So, if you see a video slot with 243 ways to win and one with 25 paylines in operation, you’re more likely to access the former of these two, right?

What special features are usually included in video slots online?

Generally speaking, as well as the base game, online video slots tend to have at least one inbuilt special feature. This can come in the form of a free spins feature or a bonus round of some other variety. It’s also common for base games to incorporate wild symbols and scatter symbols, which assist in providing an entertaining title.

Do online slots have to be played for real money?

Not at all. In most circumstances, you have the ability to access online slots for demo funds, which give you the chance to engage in free play. This ensures that you are able to spin the reels prior to using your own funds.

What is a paytable?

All online slot games should have a paytable integrated into their setup for you to view. This provides you with information on what each symbol is able to provide in terms of a payout, as well as how the different special features in the game are activated during gameplay.

Can online slots really be considered totally random?

The online slots of today should all utilise a random number generator (RNG), which determines the outcome of each spin completely at random. Without such, it could be said that a game is not fair, and that’s why they should all go through independent auditing prior to being made available at casino sites.

Jack Schiffko

About Jack Schiffko

Jack S. is a seasoned gambler and writer with over 10 years experience within the iGaming industry. He has written for several online casinos, bookmakers and iGaming news outlets. His favorite subjects are slots and live casino games. Find out what kind of games he recommends and prefers.