As 2021 draws closer to its beginning, we’ve decided to make a full list of the best online slots to play in 2021. All of these online slots are hosted in the best online casinos that we’ve listed, which means that you can also claim some amazing bonuses to play these slots for free (or most of them, at least!).

In any case, even though there are some online slots that will probably make a huge impact in 2021, there’s also a great way to ensure that you won’t be struggling to find good games to play: sticking to the ones that we’re going to list in this article!

The best online slots in the world are the best games to play in 2021. Here, we’ve made a list comprised of the best casino slots that are currently influencing the world of iGaming in as much of a positive way as possible. At the bottom of this article, we’ve also included a list of the best online casinos to play in 2021, which have the games that we’re listing here.

Be sure to pay these sites a visit and enjoy the best online slots to play in 2021!

10. Wolf Gold

Wolf Gold comes with a fantastic 96% RTP and premium bonuses, but the most important aspect of this game has to be its graphics. The title comes packed with a feel that takes you back to the days of online slots of old, where all games were made to resemble the ones that you find in the world’s best land-based casinos.

With 3 rows and 5 reels, it also takes a different approach that presents players with a unique setup that makes this title a unique and extremely variable game where bonus rounds will be found in between non-paying spins.

Unlock the bonuses of the Wolf Gold slot and attempt to claim the ultimate prize: a progressive jackpot prize that could be worth thousands of euros if you’re lucky enough to win it. It can be found in the world’s best online casinos, too!

9. Hall of Gods

Hall of Gods’ 95.7% RTP and its medium volatility make this game a great choice for those who are looking for fast-paced gameplay that makes you feel like you’re getting paid each round. The payouts might not be the best, but Hall of Gods truly takes you into the world of casino rewards and invites you to enjoy an experience like no other, in the company of none other than the gods of Olympus themselves.

Multipliers and free spin rounds make this game a sound choice for players who are new to the online casino industry or for high rollers that are looking to bet significant amounts of money in their favorite casino games.


8. Mega Moolah

Mega Moolah might have a relatively terrible RTP of 88%, but with a guaranteed jackpot of at least €1,000,000, Mega Moolah is the highest-paying online slot of all time. The game is a progressive jackpot slot that has become one of the most influential titles of the last 20 years of online gambling, being played all over the world and being the main game that jackpot hunters often want to try out.

Mega Moolah is one of the best slots out there and the world’s most-played casino game when it comes to progressive jackpot titles. It might be difficult to win it, but trying out your luck is the first step you might want to take if you’re looking to win a life-changing sum of money.

We do recommend you check out our guide of slot gambling tips if you want to truly make bets on progressive jackpot slots, though. We know that some of our readers can get a bit carried away with the features of jackpot games and they often forget that jackpot winners are very rarely found in the world of online casinos.

7. Cleopatra

The Cleopatra online slot is a cult classic that has been released an additional 2 times in spinoff versions, but the original game stands the test of time and remains a very solid game to try out with its 95.02% RTP.

The Cleopatra slot is very popular among online casino gamblers and a title that makes it easy for players to enjoy a plethora of fantastic rewards with multipliers that make each round worth more than 15 times the amount of your spin!

If you’re looking for high—paying online slots, this might not be the one for you. However, if gameplay and tradition are your things, Cleopatra is the slot to try out and enjoy.

6. Gonzo’s Quest

As one of NetEnt’s most popular titles, Gonzo’s Quest remains as a very good game to play in 2021 even after being released more than half a decade ago. In fact, the game is so good that players often look forward to bonuses that allow you to play the game for free, and it’s also one of the most played mobile slots of all time.

The game’s RTP stands at a solid 96%, putting it on the industry average for high-paying slots ad making it one of NetEnt’s best casino games. Its cascading reels and explosive gameplay make for a very fun experience that explains why so many people choose to play this game instead of newer online slots.

5. Anchorman: The Legend of Ron Burgundy

The legendary game based on the movie of the same name by Will Ferrell, which made us laugh like idiots all the way back in the early 2000s, comes with a fantastic 96.01% RTP and the chance for players to enjoy one of the many Burgundy Bonuses that make this game rich in free spin rounds.

Besides, this branded slot comes with symbols inspired by the movie’s characters. Who wouldn’t want to feel the magic of being Ron Burgundy himself whilst also winning some money in the world’s best casinos?

4. Book of Ra Deluxe

Book of Ra is quite the cult game. It wasn’t originally designed to be played in online casinos, but it was one of the most influential Las Vegas slots for quite some time. Now that the game has made its way to the world of iGaming and the Book of Ra Deluxe title has been released, it has also become one of the most popular games to play even when Book of Dead is more popular than its Las Vegas counterpart.

The title boasts a 95.1% RTP, which doesn’t sound as high, but with bonus rounds galore and a chance to win up to 5,000x your stake, Book of Ra Deluxe is one of the best games to play in 2021.

3. Avalon II

Fans of in-game bonus rounds, rejoice. Avalon II is one of the best online slots ever made and truly brings a lot of variety to the table in a world where online casino slots seem to be following the same pattern for so many years.

The multiple minigames that you can play at the Avalon II slot are what make this game such a fun one to play. It gives you a level of depth that not many other online slots can give you, and it stands as our best choice for long-term gameplay in 2021 slots.

The various bonus rounds allow you to unlock extra free spins, more bonus money, and the chance to win even better rewards by chaining win after win!

The game also boasts a staggering 96.50% RTP, which gives you a very high chance to make a profit if you’re lucky enough to enter various bonus rounds in a row.

2. Jurassic World

With a solid 95.54% RTP, Jurassic World takes immerses you in the world of the movie with 5 reels and 3 rows as its main setup, but with over 243 ways to win money depending on the symbols that show up on the board. We think that this game still stands as one of the best branded slots ever made, and with a large number of in-game bonuses, it’s also one of the most potentially profitable slots to play in 2021!

This title might not be the most popular branded slot in the world, but in terms of fair gameplay features and solid return rates, Jurassic World definitely stands up there with the best games on the planet.

1. Starburst

Starburst is still the best online slot to play in 2021, whether you’re a high roller or a low roller; whether you’re a beginner or a veteran. This fantastic casino game has stayed atop of the online casino industry for the better part of the last decade and it doesn’t seem to be going anywhere soon.

With a fantastic 96.09% RTP, Starburst stands as medium volatility online slot that is easy to understand, easy to play, and comes packed with the best casino bonuses on the internet. Your world, your rules when you play the amazing Starburst slot!

The Presence of Branded Slots – Explained!

We’ve discussed in the past why branded slots are so popular, but we’ve also made our readers aware that there are some branded slots that offer below par RTP rates.

We are not too keen on recommending our readers games below 95% RTP unless they are jackpot slots, and we’ve also discussed how some branded slots are made to draw players towards them just because of their theme, and developers make sure to set low RTP rates to lure those who are unaware of that.

However, we’ve decided to include a couple of branded slots in our list of the best slots on play in 2021. The reasoning behind it is simple: we’ve filtered out the worst branded slots and narrowed down our list to only be made of the most profitable and fun branded slots on the internet.

The games that we told you about are nothing but the crème de la crème of online slots and branded games, so be sure to pay them a visit and enjoy the rewards that await in each of them!

Where to Play the Best Online Slots in 2021?

Now that you know all about the best online slots in 2021, it’s time for you to know where you can play them. Given that these games are developed by the top game-makers of the industry, we have made a list of the best online casinos that have games from most of these developers.

That way, you can choose a single website and spend your time and money there whilst playing the best casino games without having to jump from one site to another!

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Dive into the Action Now – But Do It with the Best Bonuses!

We know that you’re more than eager to claim the latest bonuses on the internet and play these games for free. We would be too, if we were in your position! Don’t rush too quickly, though: we still haven’t told where to find the best bonuses to play online slots for free. These are our top picks for the best casino bonuses in 2021 to play free slots:

  • The BitStarz Welcome Bonus, with which you can claim a staggering 5 BTC and up to 180 free spins to play the best online slots for free
  • The mBit Casino Welcome Bonus, drawing similarities to the BitStarz Casino and offering up to 5 BTC and a massive 300 free spins package to enjoy in the best games
  • The LeoVegas Welcome Bonus, an offer that makes it easy for players to enjoy huge rewards in the best games on the internet without doing anything other than making an initial deposit on the casino. Up to €1600 and 25 free spins await!


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