There are lots of popular slots you can play: Online casinos are filled with them. However, the number of casino sites that offer all the most popular slots together is pretty low: To do that, the casino must work with all of the top-tier providers and offer an amazing game variety. Well, if you are interested in this kind of casinos, you don’t have to look for them: We already picked the for you. Below, we are listing them and also giving you lots of useful information about the most popular free slots.

Best Online Casinos To Play The Most Popular Slots

Whether you are a high roller looking for the maximum bet limits or a low roller looking for penny slots, you can play at any of the casino sites below: We picked them according to our high standards and made sure that they offer the maximum number of popular slots. Not only that, but you can also play popular slots online free at these websites: Real money gameplay is not mandatory. Moreover, you don’t need to use a most popular slots app if you are on mobile; these online casinos support all platforms on browsers. So, the idea is simple: Pick one, become a member, play popular slots online free, find out which free top slots you like, and then make your first deposit to start playing with real money!

Our Best Casinos To Play Popular Slots Picks

Big5 Casino
Register today at Big5Casino to benefit from this amazing welcome bonus:

  • Get a 100% up to €500 on your first deposit with a minimum deposit of  €20
  • Get an additional 500 Free Spins when you deposit €55+
  • The free spins are released in bundles of 50 free spins per day, over the course of 10 days
  • Wagering requirements: 30x
Spin Samurai Casino
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  • 2nd deposit: 50% up to €200 + 25 Free Spins
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Premier Casino
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  • Wagering requirements: 40x

The Common Features Of Popular Slots

  • Satisfying Payout Frequencies. RTP is short for “return to player” and all of the popular casino slots have high RTP rates. This means two things: You will lose less and the game will pay more frequently.
  • A Variety Of Themes. Pirates, ancient Egypt, movies, TV shows, even cute animals: You name it, there is a top slots game for it. Popular slots use all kinds of themes, no matter how exotic they are. Vikings Go Berzerk, for example, is based on Northern mythology.
  • Jackpot Payments. Fixed or progressive, almost all of the famous slot machines have a jackpot pool. Mega Moolah, which is the top slots game when it comes to progressive jackpots, pays hundreds of thousands of Euros every year.
  • Top-Tier Software Developers. Top of the slots requires top-tier providers. There are many providers that develop popular slots but only a couple of them are worth your time. Check below to see some of them.

Most Popular Free Slots You Can Play Today

  • Starburst Slots
  • Starburst

    Probably the most popular slots of Netent. Starburst has 5 reels, 10 paylines, and 96.09% RTP. It pays both ways (not only from left to right) and offers lots of free re-spins. In fact, you will be spinning the reels for free most of the time.

    Starburst Slot
  • Mega Moolah
  • Mega Moolah

    The legendary progressive jackpot machine. It literally pays millions of Euros. Mega Moolah has 5 reels and 25 lines. Its RTP rate is 88.12%, which is normal for a progressive jackpot. Other than the amazing jackpot payout, Mega Moolah also offers a bonus round with 15 free spins. Oh, and, the wild symbol doubles all payouts.

    Mega Moolah
  • Book Of Ra
  • Book of Ra

    : One of the new slot machines that is based on Ancient-Egypt. It is actually an old game released in 2005, but the developer recently released an updated version. Book of Ra offers 92.13% RTP and 5 reels & 9 paylines. You can win 10 free spins with expanded symbols and a gambling game to double or quadruple your payouts.

    Book Of Ra
  • immortal romance slot
  • Immortal Romance

    Developed by Microgaming, Immortal Romance offers 5 reels, 243 paylines, and an RTP rate of 96.86%. It has four different free spin bonus rounds: You can spin the reels for free with increased multipliers, expanding symbols, or additional symbols. The maximum win is 72.900 coins.

    Immortal Romance

Best online casinos selection


Casino Name


Casino License


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Netherlands Antilles
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Rating 9.35 out of 10
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Curacao eGaming
Rating 8.93 out of 10

How To Win At Popular Casino Slots

There is no method that guarantees a win at the most popular slots. Slots games play is random, which means the results are determined by a random number generator (RNG) software and there is no way of “guessing” them: Each spin is unique. However, we can still give some tips & tricks that will increase your winning odds.


  • Play popular slots online free as long as you can. The demo versions of popular slots have the same rules, features, and winning chance. Use them to practice and learn the game. More importantly, use them to find the games you really like. Both won’t cost you a penny.
  • Progressive jackpot slots are not that good. They pay big and they are probably the most popular slots, but progressive jackpot games have too low RTP values. In the long run, you will lose more. Prefer fixed jackpot games as long as possible.
  • Go for the spin number. By making more spins, you can get more chances to win. Each spin offers a new chance to score a payout. So, your goal should be getting as many spins as possible. To do that, prefer low-cost slot machines (i.e. penny slots) and play them with the minimum bet amount.

Famous Slots Need Famous Developers

So, who makes slot machines? You may think that the online casinos make them but that’s not true: There are software companies out there whose sole job is to develop these games. And, as can be expected, some of these companies are better than others. We list the best ones below – these are the companies that make the best slot machines with bonus games.

  • Microgaming Slots Analyze
  • Microgaming

    The developer of Mega Moolah and many other famous slots. Microgaming literally invented online slots by launching the first online casino in the world back in the 90s. It has a delivery platform named “Quick Fire” that hosts more than 600 games.

    Microgaming Casinos
  • Red Tiger Gaming big logo
  • Red Tiger

    Founded in 2014, Red Tiger uses HTML5 to develop the best slot machines to play online. This means all of its games are compatible with mobile devices – no matter which platform it is; the games of Red Tiger will simply run. We recommend taking a look at Diamond Blitz, The Wild Hatter, and Golden Cryptex.

    Red Tiger Gaming Casinos
  • Nextgen gaming logo
  • Nextgen Gaming

    : If you like high limit slots, Nextgen will be your most popular developer. It is a part of SG Digital nowadays, another famous provider who develops good slot machines. Nextgen offers a variety of themes and lots of adaptations, such as King Kong Fury, Flame, and The Mask. Its “Foxin Wins” slots are one of the most popular casino slots series out there

    NextGen Gaming

Best Payment Methods To Play The Best Online Slots

You can find hundreds of free new slot machines online and play them as long as you like, without spending a penny. Take a look at our online slots guide or the best payout online slots UK, for more info: We explained this topic in detail. However, sooner or later, you will want to try your chances with real money – playing the best online slots free is good but playing with real money is a completely different experience. When that happens, you should use one of the payment casino methods we listed below for your deposits and withdrawals, we recommend our neteller casino list

Paypal big logo


The most popular e-wallet service to pay for the most popular slots. A PayPal Casino is available literally everywhere, you can use it at almost all online casinos. Its payments are safe, secure, and nearly free of charge. PayPal should be your first choice to pay for the best online slots.
skrill big logo


Skrill is a good alternative for playing popular slots games: It is almost as good as PayPal. In fact, it may be better than PayPal – Skrill supports more currencies and used in more countries. If PayPal is not available, Skrill should be your first choice to play slot.
Visa big logo


You can, of course, use your credit card to make deposits and withdrawals. And since VISA is the largest credit card provider in the world, we bet that you also have one in your wallet too. VISA is also a good option to play game slots – it is fast and practical. We recommend checking out our Best Visa Online Casino to learn more. However, you should still start with e-wallets, if possible: They are simply more secure.
Neteller big logo


Lastly, we recommend using Neteller for the best slot machines to play online. Neteller is the “sister” of Skrill: Both brands belong to the same company. (In fact, even the Paysafe Card belongs to the same company.) If Skrill is available as a payment method, you can be sure that Neteller is available too.

Even The Most Popular Casino Slots Have Pros And Cons

  • They are fun and profitable
  • They have innovative features
  • They are easy to learn and play
  • Their payout frequency is quite satisfying
  • Over-the-average RTP rates
  • Not all online casinos have them
  • Some of them are quite old and do not support iOS

Play Popular Slots Online Free Right Now!

You can try your chances on popular slots right now: Pick one of our recommended casinos and create an account. Don’t forget to grab your bonus too, our suggested casino sites always have a useful bonus to use on popular slots games. We offer you the best places to play the hottest slot machines: Spin the reels, use your bonus, join slots tournament, and win – it is as simple as that. And don’t forget to have fun too, that’s the most important thing or learn more about other strategies like 20 Card Keno. Good luck out there!

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