The 10 Best Online Slots for Real Money in 2021

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10 Best Real Money Online Slot Games 2021

A new year begins, so we thought we would share the 10 best online slots to play this 2021.

At Legitimate Casino, we take great pride in reviewing the most trusted online casinos and the top slot machine games as they are released, so our readers have insight into the latest features, themes, and tech advances.

In this comprehensive list, you will find our top ten selections of slot games that are a must-try among slot fans. Check out each game’s details and why we choose these slots games as the best top play in 2021! Surely you’ll want to try them out and start playing slots online fast!   

Each of these online slot games is provided by top-rated online casino sites. You can easily give the reels a spin by visiting recommended sites, including BetOnline, El Royale Casino, Red Dog, and Super Slots. 

Legitimate Casinos Top 10 Online Casino Slots Games for 2021

#10 – Area 51

Coming in at our number 10 position, a sci-fi motif game created by Concept Gaming, Area 51 is an entertaining online slot game that features an alien theme.

In this top slot machine game, you can fight aliens on a spaceship and earn all sorts of lucrative prizes.

There are plenty of weapons on the reels, as well as aliens waiting to battle. The RTP of this game is 95.92% with a 5×5 grid which is mainly why this game made it on our 2021 list.

Area 51 Slot Game
BetOnline Casino

Area 51 at BetOnline

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One of Area 51’s weapons is a unique one, providing free spins when it is found on the reels.

In this game, three scatter symbols offer 10 spins while four provides 20 and five offers 25.

You can start playing this alien game is found at BetOnline. Join the site and access a welcome offer worth up to $3,000!

#9 – Howling At The Moon

At the ninth position of our list, and certainly, one of the best online slots to play this 2021, Howling At The moon where the player visits a beautiful snowy forest where all the woodland creatures live, including the white wolf.

Howling at the Moon is an online slot game created by Nucleus Gaming with a unique grid set up. New players to the site get started with a boosted account, thanks to the $3,000 Welcome Bonus!

Howling At The Moon Slot Game
BetOnline Casino

Howling At The Moon at BetOnline

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When playing this online casino slot machine game, the grid is a 3-4-5-4-3 style and offers players plenty of unique features.

The dark wolf is the scatter in this game, providing multipliers up to 50x on the reels! You can also earn free spins with the dreamcatcher symbol.

Add to that, this online slot offers up to 96 free spins in one win!  You can get started playing Howling At The Moon at BetOnline today!

#8 – Aztecs Millions

Created by RTG, and proven to be one of the most popular slot games of the year, at the eighth position of our 2021 top slot machine game list, Aztec Millions takes you on an ancient journey, back to when the Aztecs ruled the lands.

In this top slot machine game, the players objective is to find unique royal symbols on the reels as well as characters.

The Aztec King is the wild in this game, substituting all symbols except the Aztec Millions and scattered idols.  

Aztec's Millions Slot Game
El Royale Casino

Aztecs Millions at El Royale Casino

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The idols provide access to scatter wins and free spins. Find three, four, or five scatters to earn five, 15, or 25 free spins!

RTG offers this game at El Royale, a top-rated online slots casino for US players. Sign up for a new player account here, and you have access to a Welcome Bonus worth up to $12,500!

Use your bonus cash to play games, including this unique 5×3 title!

#7 – 5 Wishes

For a fun take on the traditional Aladdin tale and in our opinion one of the best slot games, RTG presents 5 Wishes, our seventh best slot game of 2021!

This slot game is bright and colorful with a 5×3 grid and 25 paylines.

In this game, you can find all the classic characters in the game, including Aladdin, the Genie, Jasmine, and Abu!

5 Wishes Slot Game
El Royale Casino

5 Wishes at El Royale Casino

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Spin the reels of this slot at El Royale Casino and as a new player, take advantage of a welcome offer worth $12,500.

The player’s objective in this game is to find the Genie on the reels as you spin, and you will earn double the prize on a winning combination! 

Don’t miss out on the fun and log into El Royale Casino today to take your shot at finding the magic Genie at 5 wishes!

#6 – Joker Gemferno

Coming it at number six on our count down of top slots of 2021, a fantastically fun game created by Nucleus Gaming, Joker Gemferno is an online slot game that features a fiery joker theme.

In this exciting slot game, classic fruit symbols can be found on the reels along with gems and, of course, the joker!

The game has five reels and 18 paylines with plenty of features to activate.

Joker Gemferno Slot Game
Super Slots Casino

Joker Gemferno at Super Slots

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The idea is for you, the player to find three of the Gemferno symbols on the reels to trigger a special bonus round.

Earn seven free spins and watch as special quartz symbols show up on the grid!

For new players who sign up at the site, a welcome bonus is on offer, worth up to $6,000! Don’t miss out on the fun and get started playing Joker Gemdferno at Super Slots today!

#5 – Panda Playtime

This online slot by Dragon Gaming is a 6×5 grid with an RTP of 95.54%.

Earn cluster wins while you play, which means potential for a win after win as symbols remove and more drop into place on the reels.

Located in a bamboo forest, this game has an awesome user interface that highlights cute and cuddly creatures, including pandas, which is one of the reasons it’s on our top list, coming in at number 5!.

Panda Playtime Slot Game
Super Slots Casino

Panda Playtime at SuperSlots

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Spin the reels and earn free spins by finding yin/yang symbols in the game.

A spawning wild feature can also be triggered where random wilds add at any time. This feature helps you to earn more wins in the game!

Play this title at Super Slots, where you can access a $6,000 Welcome Bonus as a new player

#4 – Spirit of The Inca

Available at Red Dog Casino, our #4 game is the Spirit of the Inca, which takes players on a journey to the Incan Empire. The reels fill with ancient symbols, including pyramids, jewelry, pots, and more.

There are special jackpots to be won on the 5×3 grid, as well as features to trigger. This game is in our top 10 due to the Spirit of the Inca feature.

When the Incan Spirit appears on the 1st and 5th reel, 15 bonus symbols will show up on the reels. Choose five bonus symbols and see what you earn!

Spirit Of The Inca Slot Game
Red Dog Casino

Spirit Of The Inca at Red Dog Casino

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When this feature is activated, the first three offer up to 25 spins. The fourth pick offers a prize multiplier and the fifth a no bonus, wild reel, or extra wild during free games.

Be sure to activate the 225% Welcome Bonus as a new player to the site before trying this new game

#3 – Diamond Fiesta

At number 3, This RTG slot game has a fun Day of the Dead style theme. Enjoy free spins and expanding reels on the 5×3 grid. There are 50 paylines with plenty of opportunities to earn a payout.

A unique feature of Diamond Fiesta includes the Jackpot Diamond Feature. This feature is triggered with six or more diamonds anywhere on the reels.

Diamond Fiesta Slot Game
Red Dog Casino

Diamond Fiesta at Red Dog Casino

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Re-spins that are provided and diamond symbols remain in position. After all of the re-spins, the diamonds reveal a prize value or a jackpot!

Try this game at Red Dog Casino where new players receive a 225% Welcome Bonus that can be used on this game.

#2 – 777

With a 97% RTP, 777 is a classic slot game that just had to make our best slot games list at a solid #2 position and certainly one that you must try in 2021.

This slot features a traditional feel with three reels and one pay line. The symbols are simple and include only bars, coins with cards, and 7s.

777 Slot Game
Las Atlantis Casino

777 at Las Atlantis Casino

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Choose to hold one or two reels by clicking the HOLD button. With this Hold & Spin game, you have a higher chance to win real money!

You can try your luck by playing 777 at Las Atlantis Casiino who offers this RTG game and provides a sign-up bonus to new players with up to $14,000 in bonuses on offer!

#1 – Plentiful Treasure

Finally, at the very top position of our list and the one that you absolutely have to play, coming in as the number one best casino slot game of 2021, Plentiful Treasures, The popular game from software developer Real time Gaming.

The incredible virtual slot machine game slot has a 5×3 grid with a whopping 243 bet-ways and a colorful Asian theme.

Three or more scatter symbols will provide eight free spins. There is also a Gold Coin feature that can trigger a progressive jackpot!

Plentiful Treasure Slot Game
Las Atlantis Casino

Plentiful Treasures at Las Atlantis Casino

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Spin the reels and access plenty of extra features, including free slot games at Las Atlantic Casino, one of our top recommended sites to play the best slots games online.

New players to Las Atlantis have the opportunity to take advantage of a Welcome Package valued at up to $14,000 as well as other bonuses that provide free spins and much more!

How We Ranked The Best Slot Machine Games

At Legitimate Casino, we take great care in our review process to grade the features of the best online slots. Several factors are covered so that you can fully understand what each game provides.

From RTP to connected bonuses, mobile optimization, and jackpot value, we cover it all so that you can play the best slot machine games offered this year. Below are the characteristics we look at for our slot game ranking and why they are essential. 

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  1. RTP and Variance

    RTP is the percentage in which you will see a return in the game. The highest RTP’s usually range from 96 to 98 percent. Variance is the measurement of the range between winning and losing.

  2. Casino bonuses from where the slot games are hosted

    It is essential to consider the welcome bonus where the game is offered. What are the terms and conditions of the bonus? Is it a good value?

  3. Overall Gameplay Experience

    We also consider the overall experience during gameplay. The theme, graphics, animations, and sound are reviewed based on enjoyment and visual appeal.

  4. Mobile Optimization

    Is the game playable via mobile? We always review if a slot game is offered via mobile and desktop devices.

  5. Jackpot Value

    At Legitimate Casino, we take a look at the jackpot value of slot machine games. Is there a progressive jackpot connected to the game? How high of a jackpot can you win real money?

  6. Is the fair game license granted by relevant gaming authorities?

    Guaranteeing fair gaming, by using random number generators, It is crucial to consider licensing and fairness of the game. We review the fine details so players can rest easy knowing the game provides optimal fairness.

Slot Machine Play Strategy At An Online Casino

When playing the top slot games of 2021, or any slot game, it is essential to have a playing strategy. The points below come in handy when you are betting real money on slot machine games. Take the tips into consideration to help your bankroll last and hopefully grow while you spin! 

  • Playing slot games with a high RTP: Always choose to play a game with a high RTP. When you have an RTP of 96% or higher, you are more likely to see a higher return on your investment. The house edge is lower, which plays in your favor. 
  • Practicing bonus rounds: Take time to practice bonus rounds in the best online slots. Most games offer a demo or practice mode. Get to know how the bonus rounds work to make smart decisions once you switch over to real money. 
  • Understanding game paylines: The pay line is an active line that allows you to win a prize when you have a winning combination on the reels. Some slot games have fixed paylines where all are in play. Others allow you to select the paylines. Understand how paylines work in a game to know how to bet and how much you will win with a winning combination. 

Closing Thoughts On The Best Online Slots Of 2021

At Legitimate Casino, we want our readers to access premium information regarding the online casino industry. When it comes to the best online slots of 2021, we have carefully crafted a list that provides 10 of the most popular and beneficial slot games of the year.

Easily visit any of our recommended sites from the top ten slots casino list to give these games a try, taking advantage of bonus options as well as special features. 

If you enjoyed this article, be sure to share it with your friends and colleagues! Everyone should be able to use this top 10 list to their advantage! 

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