Classic games are fine and easy to play, but let’s face it: They don’t have the best graphics or the most innovative features. By “upgrading” to HD slots, you can get both: These are the next generation of online slot machines. They are still very easy to play but they come with additional features that will boost your winnings. So, how can you start playing slots HD and what are your options? More importantly, which casinos offer the best HD slots to play? We prepared this online slot guide to answer these questions and more: Keep reading to dive into the world of HD slots!

Best Casinos To Play The Best HD Slots (2021)

Whether you are looking for a specific game like Mega Slots HD 2 or want to try lots of free HD slots online, the casinos below are the best options you have: Pick one, join today, and start playing hundreds of HD slots games with the best bonus offers!

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
Get the amazing welcome package at Spin Samurai Casino: Up to €800 + 75 Free Spins!

  • 1st deposit: 60% up to €100
  • 2nd deposit: 50% up to €200 + 25 Free Spins
  • 3rd deposit: 40% up to €500 + 50 Free Spins
  • wagering requirements: 45x
MrLuck Casino
Make three deposits and start playing with up to 1200% bonus + 100 Wager Free Spins!

  • First deposit is 500% up to €100
  • Second deposit is 400% up to €120 + 50 Free Spins (no wagering)
  • Third deposit is 300% up to €120 + 50 Free Spins (no wagering)
  • Wagering requirements: x30

Also Great Online Casino Picks

Cobra Casino
Cobra Casino logo small
If you are looking for a high roller casino, Cobra Casino will be one of the best options with games such as Book Of Ra, Mustang Slots and many others: It welcomes new players with 1050 EUR and 300 free spins. After that, you can start taking advantage of the Tuesday free spins, in which you can receive up to 100 free spins depending on the amount you chose to deposit in that day.
FezBet Casino
FEZbet logo small
You don’t have to pick between slot vs roulette at FezBet casino: Its welcome bonus is big enough for both. You can start playing with 500 EUR and 200 free spins. And if you lose, don’t worry: There is also a weekly cashback bonus that refunds up to 3.000 EUR. FezBet is also one of the top casinos in our 100 best online casino list.

What Are HD Slots?

The term “HD” refers to their graphics quality: It is short for “high definition” and means that these games support higher resolutions such as 1920×1080. In other words, they have much better looking visuals – this is the first feature of HD slots. Second, they come with a couple of modern and innovative features which we will list below. The rules, however, are the same: Your goal is still trying to land the same symbols next to each other to qualify for a payout, like in all 5 reel slots and 3 reel slots. Also the number of pay lines help a lot, thus we recommend 20 line slots.

Slots HD Vs Other Slots: What Is The Difference?

Further Information

We can list the common features of slots HD as follows:

  • Newer technology. These games are developed with HTML5, not Flash. They use a much more modern platform.
  • Mobile compatibility. For this reason, they are also mobile casino games: HD slots can be played on all kinds of mobile devices.
  • Advanced graphics & animations. As mentioned above, they offer much more advanced visuals and other graphics features.
  • Instant play. No download is needed to play HD slots; they can run on browsers.
  • More features. They offer more payline options (so you never have to ask how many lines should I play on a slot machine) and lots of bonus features that will boost your winnings.

Top Casinos List Where You Can Play Slots (2021)


Casino Name


Casino License


Get started

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Rating 9.99 out of 10
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Rating 9.90 out of 10
Up to 1200% Welcome Package
Rating 9.81 out of 10
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Rating 9.63 out of 10
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Rating 9.30 out of 10
€500 + 100 Free Spins
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Receive ‎100% up to €300
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Rating 9.05 out of 10
Receive $1080
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Rating 8.94 out of 10
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Curacao eGaming
Rating 8.93 out of 10

Common Features Of HD Slots

So, what kind of additional features are we talking about? What can we expect from slots HD? Take a look at the list below so you can have an idea:

More ways to win
Paylines are not the only way of winning: You can create clusters too, like in match-3 games.
More lines to play
Even variants like HD little slots can offer as much as 1.024 paylines. More lines mean more chances to win.
Mini games
In addition to free spin rounds, you can play mini games (i.e. pick me) to score more winnings.
Different kinds of special symbols
Expanding wilds, sticky wilds, multiplier wilds – you name it, HD slots have it. The special symbols are much more profitable.

What Kind Of HD Slots Are Available?

In general, almost all slot games developed after 2015 can be classified as “HD slots”. This means you have lots of options – there are literally thousands of games to play. However, as can be expected, some of these games are better than others. We recommend to start with the HD slots of the following providers:

Aristocrat Slots

Aristocrat Gaming

Aristocrat manufactures slot games since 1953, and it is the biggest Australian developer out there.
Netent Slots


All slots of Netent are innovative and creative: If you are looking for truly unique features, start with Netent.
Bally Slots


Bally combines classic slot gameplay with modern features and it is a part of the SG Digital nowadays.
Microgaming Slots Analyze


A true pioneer – Microgaming has developed the first online slot in the world. It is also the leading provider when it comes to HD slots.

No Download & No Registration: Slots HD Are Instant Games


You can play free online HD slots on mobile without making a download or registering an account. No app is needed: Simply visit the game page on your mobile device and click the “play” button. Slots HD will launch on your browser in mere seconds. We recommend starting with a Rival casino to play on mobile, as all the games in their collection are fully compatible with mobile devices. And our recommended game is Mega Slots HD 2: You can find it on Windows Store too. If you would like you can also check out our online casino games guide and learn more.

Pros & Cons Of Playing HD Slots

  • Advanced graphics and animations
  • More bonus features
  • Increased resolution
  • Full mobile compatibility
  • No download is needed
  • Older players may find them complicated
  • Some of them are only available on mobile

Hundreds Of Slots HD Free Are Waiting For You!

It is time to start playing HD slots: You can find hundreds of them at our recommended casinos. Pick one, claim your bonus, and browse through the slots HD collection: We guarantee that you will find a game that suits your needs! Visit us often to find more HD slot games to play – we update our content every week. Good luck at the reels: Let’s hit the jackpot together!

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