Best Casino Slots: Must Know Secrets to World’s Best Games

Best Casino SlotsThat’s how many slots there are in the world right now. And of course, by the time you are reading this, the number is very likely to have changed.

But whether it’s 2000 slots, 3000 slots or 4000 slots, either way, it’s an enormous number.

That’s why the only true way to answer what are the best casino slots would be like this:

Best Casino Slots are games where you won the most money and/or had the most fun.

Because anything other than that offers too much vagueness.

How many millions of players are the happiest to play simple, low-variance slots? Their best casino slot has been and will always be Starburst. Or one of the classic 3-reel fruit slots.

Others will look for emotion. That’s why they will love online slots like Dracula, Immortal Romance or Aliens. Slots like these excel at telling a story.

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There are also progressive jackpot slots which have a passionate fanbase. Or music slots like the Metallica slot, Jimi Hendrix slot, Guns N’ Roses, etc. They are popular largely because today’s adults loved that music.

The fact is that slots vary tremendously. Which ones are the best?

Who can really measure fun?

So, we can’t give you a list of the best casino slots, because there is no objective way to put such a list together. Instead, we will take you by the hand and show you all the slots secrets every player must know.

How does that sound?

You do want to know how you can play for free, don’t you?

You do want to know, which slots have the best payouts or offer the most unique features?

Stick around for a bit and we promise to make it worth your while.

Best Casino Slots – Full List! 

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How to Find Best Casino Slots

Find Best Casino SlotsWhen the first slots started, the game was as basic as it goes. Pull the lever, wait until the symbols on the three reels stop and, if the middle line has the same symbols, collect your winnings.

Nowadays the games have become much more complex covering a wide range of themes and types of features. So much so that you have to try as many games as you can to even know what you like.

Of course, the easiest way to sort slots is by RTP, a return to player ratio. It’s a number that determines the house edge and what theoretically can a player expect. Let’s take a popular NetEnt slot Gonzo’s Quest as an example. It’s a 5-reel, 3-row game with 20 paylines. Its RTP stands at 96 percent flat. Which means that the casino leaves itself a 4 percent edge.

However, it’s only theoretical. You may encounter a string of 50 unlucky spins or win a huge prize on your second spin.

That’s why looking for slots by the highest RTP is a popular way of finding slots, but may not produce the desired results.


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Another valid way is to go to a casino and check their Top Slots category. While the games you find will be probably sorted by hand by the casino team, it may be the easiest way to find fun, unique slots with great features.

Although, if you go down that route, make sure the casino you visit has games from at least several game developers.

We will cover why that is important next, but in essence, if the casino offers games only from 1 game developer out of 40, your choice is not the best.

Best Slots by Developer

Some advice to finding good slots games focuses on the developers. Each casino game developer has their own style, preferred themes, and features. Their games even share the same progressive jackpot pool.

Which means that if you like one, you will probably like other of their games as well.

While everyone’s experience with a particular slot, brand, or a casino may differ wildly, we’ll do our best to give you a general feel about several of the top casino game production companies out there.


NetEnt SlotsYou may hear that the best casino slots are produced by NetEnt. Which is a valid statement, however, it’s not true.

They do have the world’s most popular slot, Starburst. And they also sign the majority of the big-name slot partnerships like Guns N’ Roses video slot, Jimi Hendrix video slot, and more.

NetEnt is praised for producing slots with the most stunning visuals. They do have outstanding looking slots. However, they are not the only ones. Not any more.


Microgaming slotsMicrogaming is one of the three largest casino game developers. The other two are NetEnt and Playtech, which you will meet later. The difference with Microgaming is that they were never particularly interested in stunning visual effects. Although, the Dark Knight is a great exception.

Instead, the company focused on producing high-paying slots in a variety of themes. Mega Moolah is the best example of that kind of a game. A relatively low point of entry (0.25c) and a progressive jackpot exceeding $10 million helped the game become the best played progressive jackpot slot ever.

Among 400 Microgaming slots you will also find lots of classic fruit slots, Avalon 2 and the Jurassic Park (two of the top 10 slots of all time), and even a Lord of the Rings slot.


Thunderkick slotsCompared to other 20-year old brands, Thunderkick entered the scene a bit later. The company was launched in Sweden, in 2012. They had a lot of catching up to do, so among Thunderkick games, you may notice a lot of experimentations.

For instance, currently, they own a slot with the second highest return to player ratio, 98.5 percent. The slot is called 1429 Uncharted Seas.

Or, there are also unusual slots with a clear target audience. Like the Babushkas slot, Luchadora, or the Arcader slot.

And some games you just don’t know what to think. Yes, I’m looking at you, Esqueleto Explosivo (which definitely is a remarkable piece of slots history).


Playtech slotsPlaytech is huge. But not as huge as it used to be. You see, before Disney owned Marvel Studios, Playtech had a license for Marvel-featured games. People love The Incredible Hulk, The Fantastic Four, and the rest because, in addition to the beloved theme and characters, these games came with a 4-way progressive jackpot.

Playtech is still huge with lots of brand-name titles. The Matrix Slot, Top Gun, The Sopranos, The Mummy just to name a few.

So, if you like to combine watching TV with playing slots, look for Playtech slots.

Bally Technologies

Bally Technologies slotsWhat do you do when all of the best themes are taken? You may do an Egyptian Slot, but everyone will say you’ve taken it from the big brands. Well, Bally Technologies decided to make the most out of what was left.

So, don’t act surprised when among others, you’ll find the Friends slots machine, the Anchorman (Ron Burgundy) slot, the Duck Dynasty slot and more.

The slot machines don’t offer the latest in the 3D world, but almost every game has something unique about it.

Of course, don’t hesitate trying games form other developers. Red Tiger Gaming, Amaya, IGT, 2WinPower. There are too many to name, let alone review.

To try all those games you may need a large deposit. Or, you can also play free.

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How to Play Best Casino Slots FREE

Best casino slots… Free! What can be better?

To be honest, on the internet tons of things are free. People can get new careers, find new friends and indulge in all of the knowledge that humans have accrued.

They only need to know where to look.Best Casino Slots FREE

Free slots work in a similar way. First, you must know what is it that you are looking for. Once you know your possibilities, you can start looking for options.

Risk-free games can mean no deposit bonuses, or free spins, or mobile games, or play money games.

Here are the main types of free casino slots:

  • No deposit bonuses

Register a casino account, receive some money. Spend the money where you want, be it live roulette, blackjack, or the world’s most expensive slot machine.

Almost always you are free to choose the games you want to play.

  • Free Spins

Different from the No Deposit Bonuses, free spins often are assigned to one or two slots. Let’s say you get 20 free spins. Most likely, you will be restricted to playing 20 rounds on a specific slot.

Or, there may be other conditions. If you are promised a large number of slots (often, 100+), it could mean that you will get 10 slot free spins for 10 days in a row.

It’s really up to the imagination of the casino, but you get the idea.

  • Mobile Games

Mobile casino gamesMobile casino games  one day soon will get their own article here, because it’s such a large topic. Sometimes, app developers partner with real casinos and bring top quality slots that you already know to your smartphone.

App developers may decide to create their own casino games. While it offers more variety and uniqueness, it’s not always best.

As entertainment-only apps, these kinds of apps don’t have to adhere to gambling laws in terms of fairness, payouts, RTP, etc. Plus, games must be created from scratch, so there may only be 10 or 20 slot machines to play.

  • Play Money Slots

It may sound like mobile slots, but in reality, play money slots are closer to real casino games. Because playing free money slots means that you go to an online casino, and choose a game. But instead of playing real money games, you choose the ‘Demo Mode’, which is free.

The main advantage here is availability. In Demo Mode, you can enjoy all of the same slots like you would if you played real money games. But this way you risk nothing. And there are no ads, as opposed to mobile casino apps that want you to spend money to purchase coins, etc.

As you see, playing free is not only possible, but you also have several ways to play the best slots online free. So, go and enjoy all those games.

Unless you are interested in the best casino slot features. Are you?

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Popular Features of the Best Casino Slots

Slots players get excited about the potential payouts. But they continue to play for the features of the slot. It’s simple. Winning a jackpot it hard. Trigger the bonus round and you get a similar feeling. Diminished? Sure. But at least it’s much more frequent.

And due to all the extras during the bonus games, you stand to win a significant amount.

How do slots differ? First, paylines.Casino Slots

We moved way past Video Poker, and classic one-payline slot machines.

Nowadays you can find slots with 5, 10, 20, 30, 40, 243, 1030 and even 10,000 ways to win. Now that sounds exciting, doesn’t it?

If you want to take it even further, one Red Tiger Gaming slot Laser Fruit offers 60 MILLION PAYLINES.

Games also differ in in-game features.

Novomatic slots are famous for their ‘Black or Red’ feature. It’s a 50/50 feature where you can guess what the next card will be. If you guess right, you double your money.

Interested? Try the Book of Ra slot.

Other games started implementing avalanches on every win. It usually works like this. You trigger a winning symbol combination. Then, the winning symbols are removed. Empty spaces are filled by symbols on the reels and, if more winning combinations appear, you get additional wins. Often this feature comes with multipliers on every consecutive win.

Like this feature? Try Gonzo’s Quest from NetEnt.

Gonzo’s Quest Slot Game

A respin acts exactly as it sounds. If you hit a symbol, whether you win or not, you will get a respin. Try slots like Starburst and Jack and the Beanstalk if you like the Respin feature.

Bonus Games have their own features. Sometimes it’s an extension of the base game, and other times it’s a whole new game.

The features you are most likely to meet during a bonus round:

Sticky Wilds – Wilds that help produce a winning line stay on their spots for additional spins or even the rest of the bonus round.

Stacked Wilds come together in a column. A good place to hit a stacked wild is on the second and third reels.

Expanding Wilds differ from game to game, but it’s when one Wild symbol produces more. On The Incredible Hulk Slot expanding wilds took 9 spots (2, 3, and 4 reels). On a Jurassic Park expanding wilds pop up randomly all over the reels.

Continuation – You decide whether it’s a feature or not. All we know, players love these slots. The game remembers your progress and the more you play, the more you unlock. Games like the Jurassic Park, the Jurassic World, Immortal Romance, Thunderstruck II, and many others will give you access to one special feature when you trigger the bonus round. But with every other bonus trigger (even if it’s the next day or the next month), you will progress towards unlocking more, often better features.

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Everything You’re Too Afraid to Ask About Best Casino Slots

We know that there are a lot of questions players need clear and honest answers to. So, we’ve prepared this little ‘Ask me Anything’ section.

If you have a question which is not featured below, let us know and we will add it.

How do promotions work?

When you first come in to a casino, you are overwhelmed with many bonuses and offers. The ‘Promotions’ will always page will  often be filled with offers, you email will start getting extra offers for deposit bonuses, etc. But that may be deceiving.

Only after you’ve been with a casino for a week, or better, a month, you will know much better how the casino operates and whether it’s really worth your time. Think about it. If the offers are flying around on your first day, and the same offers reach you after a month, it means that the appearance is different from the reality. It could easy be the case of the casino being slow and greedy.

So, the rule of thumb we like to give to new players – hold off on first deposit bonuses. Unless it’s a really good offer, you should just wait and see how the casino changes. As a potential first depositor, you will always remain valuable to the online casino. So, playing a little hard to get can only help you claim a better deal.

Almost every bonus will have certain limitations and restrictions. Like wagering requirements, which we will talk about next. Also, there may be limits on your bets, amount to win out of the bonus, day limit to use the bonus, etc.

What are wagering requirements?

wagering requirementsWagering applies to bonuses, both free and when a deposit is required. In simple terms, the casino is telling you ’we will give you some free cash to play, but you can’t yet make a withdrawal. Use your free cash, wager it x number of times and, once you achieve that, you are free to make withdrawals.

How much is X? The vast majority of offers will have x20-x30 wagering requirement for its bonuses.

What about progressive jackpots?

If you are wondering whether anyone actually wins those things, you better believe it. In fact, every year top online slots produce at least a dozen new millionaires.

However, any player who is hunting a progressive jackpot must know the tricks and the reality of these games.

progressive jackpots

  1. Most likely you will not win a jackpot. Hundreds of players play the same slot every day but only one or two manage to win the mega jackpot every year.
  2. Progressive jackpots are extremely high variance games. Make sure you play within your bankroll limits.
  3. Sometimes a minimum to play (say, $0.25) is less than an amount required to actually play for the jackpot (say, $1.25). Check before you play.

What about different online casinos?

You want to play the best online slots. But where? Online there are hundreds of casinos to play. Where can you get the best games?

It’s both a simple question and one that we have been trying to answer for 20 years.

Casinos are much more alike than some players may imagine. Think about it. There are around 40 game developers and hundreds of casinos. Some casinos are dedicated to only one casino developer, others combine games from two or three casino game publishers.

Of course, there are casinos that partner with as many brands they can. That’s where you will find 2,000+ slots to play.

different online casinosSo, actually, to know where to find the best games you first must know what developer you are looking for and, secondly, whether that particular developer is available at your casino. If not, you can find a new casino or learn to enjoy slots without your desired developer.

What about withdrawals?

If you win, small or big, you will probably want to send the money to your account. Here, several key factors will determine how easy or hard this process is for you.

  1. Did you make a deposit?
  2. What method did you use?
  3. Did you use a bonus?

Did you make a deposit?

make a deposit online casinoA deposit is more than a procedure of transferring your money from your account to your player’s balance. More so than anything else, it’s a proof of identity (that’s why $1 deposits exist). When you make a deposit, casino knows you are a real person that can be talked to and promoted to.

Consequently, if you haven’t made a deposit, you will be asked to make one before you can withdraw any winnings.

What method did you use to make a deposit?

You may not realize this but there are over 30 ways to make a deposit to your account or withdraw from it. The usual suspects are bank transfers, credit and debit cards, cheques, PayPal, Neteller, Skrill. But there are also local options (, Multibanco), cryptocurrency (Bitcoin, Litecoin, Dash), pay by phone deposits (Boku).

They differ in fees, speed, special bonuses, etc. But the most important question you must answer is whether your preferred deposit method is an option as a withdrawal method, as well. Sometimes a method is available to use for deposits, but not for withdrawals.

Did you use a bonus?

online casino bonus ticketNearly all bonuses come with a requirement to wager your bonus a certain number of times aka the wagering requirement which we already talked about. But bonuses come with other conditions, too.

One of the most frequent restrictions is a limit on maximum winnings. Your winnings from bonuses may be limited to $50 or $100. But that’s something you have to check under the terms and conditions of your bonus.

What are high variance video slots?

Not all casino slots are the same. Some are chill and relaxing, others are quite intense. Variance, in simple terms, refers to how often the slots machine payouts. But it’s different from the RTP, which may say that over long-term you can theoretically get back 95 to 98 percent of what you played.

Variance will tell you how rocky ‘long-term’ can be. Low variance slots will produce small, frequent wins. Most mobile app slots offer this type of a payout. You can expect that every other win you will win at least 20 percent of your bet per spin.

While high variance slots like the Jurassic Park or the Thunderstruck II don’t pay out as often. But when they do, you can expect wins easily reaching 50 spins, 100 spins and even more.

The most exciting slots are slots that we end up playing the most. These are the best slots. We are incredibly lucky to have such a mind-blowing variety of games to choose from.

Our only advice is: Explore.