Most Popular Slots 2021

You can collect supermeter credits and transfer to the basic mode at any stage
All that glitters is not gold—but try telling that to Gonzo! Our relentless conquistador will stop at nothing to get his hands on temple gold
Don’t let its innocent looks fool you - this deep sea slot is highly volatile and not for the faint hearted!
Amazing African animals in their natural habitat
No other online slot game comes anywhere close to Mega Moolah's lump-sum jackpot pay outs!
Get into the Christmas spirit with Sweet Bonanza Xmas!
The more candies you hit, the more you get in the tumbling feature
Tag along with Gonzo, the quirky bearded Spanish explorer

Most Popular Online Slot Machines 2021

Top 5 Highest RTP Casino Games

One of the most exciting ways to spend the pandemic is to play at your favourite slot machines and make some real money in the process. On this page, we have put together the best online slot machine games of the year, all supplied by highly reputable and professional game providers.

But it is not only the brilliant visual effects and gripping plots that we expect from a good game. Ideally, we would like to make good winnings too. In other words, we seek games with high RTP, which stands for Return To Player. RTP indicates how lucrative a game potentially is for the player. For example, 75% RTP means that a statistically average player will eventually win back 75% of the amount deposited in the game.

You cannot expect a game’s RTP to be 100%, though, for it would mean that the online casino had become a charity organisation. For the game’s provider to make a profit, it has to be less than that, but as a statistical average only. However, some players can and do regularly return 100% and even more, and you might be one of them.

In other words, You would like a game’s RTP to be as high as possible: the higher it is, the better your chances of making some real cash while you are having fun. This page shows the five best highest RTP games for you to choose from and enjoy.

Razor Shark by Push Gaming, 96.7% RTP

Push Gaming releases exceptionally high-quality games to play on the computer or a mobile device, but it is the Razor Shark that has made the provider famous worldwide. The game invites you for a thrilling adventure deep in the ocean to make the most exotic discoveries and search for carefully concealed winnings.

Razor Shark Symbols, Winning Combinations and Payouts

The game has five reels, four rows and 20 paylines, and the maximum win is unlimited. The symbols in Razor Shark show up in stacks, which allows you to get all the reels occupied by a stack.

The symbols vary in value, the Great White one carrying the highest one. It can stand for any other in the game, save for the scatter, and a stack of 5 Great Whites gives you 50 times your wager.

Razor Shark Bonus Features

The game provides four main bonuses:

  1. The Mystery Stack

This feature comes in stacks consisting of four symbols. Watch your reels well, for the bonus may show up anywhere and at any time. When it happens, the Mystery Stack activates a Nudge to reveal a symbol and award a win, paying all the current paylines.

  1. The Razor Reveal

The Mystery Stack can also reveal a golden shark, in which case all symbols will spin, and you will get your wager multiplied by up to 2,500.

  1. The Razor Shark Free Spins

To receive the free spins, you must land a minimum of three scatters; plus, every additional scatter you land will give you one bonus spin too. This feature gives you two reels filled with the Mystery Stack symbols that will move down with each spin you make.

  1. The Free Games Bonus

You will also get free games every time you land three scatters. In this case, the Free Game bonus will fill your second and fourth reels with the mystery stacks and activate the win multiplier. Plus, the multiplier will go up every time you trigger a razor shark. This bonus feature continues for as long as there is at least one mystery shark on the screen.

Where to Play Razor Shark for Real Money

The best Razor Shark Casinos include:

Sweet Bonanza by Pragmatic Play, 96.51% RTP

A leading gaming content developer, Pragmatic Play, has, for the first time, experimented with a slot machine that uses tumbling reels in the game. Sweet Bonanza is exceptionally popular for its superb sound and brilliant graphics. Apart from that, the game offers a generous selection of prizes and lucrative bonuses that allow you to win more than twenty thousand times your wager.

You will really appreciate Sweet Bonanza if you love sweets, cakes, fruits and ice cream, for this is precisely what you are supposed to dig into for the entire duration of the game. Your goal is to find more than seven items with identical scattered symbols. As soon as you get eight of those, they explode into more symbols to multiply your winning combinations and enjoy more ice cream.

Sweet Bonanza Symbols, Winning Combinations and Payouts

Fruits and sweets of different colours are the main symbols in the game, varying in the number of multipliers you receive if you collect a minimum of eight matches. Eight bananas, for example, will give you 40 times your bets on a spin, and your wagers will multiply by 500 for eight purple sweets. Moreover, you can considerably increase your winnings if you bet with multiple coins.

The best payouts provided by the slot are the Red Heart Candy, 12 of which will multiply your bets by 1,000, and the Swirl Lollipop Scatter, which breaks down as follows:

  • 60 times your wager for at least four matches
  • 100 times for five matches
  • Impressive 2,000 multipliers of your bets for only six matches

Sweet Bonanza Bonus Features

Striking more than four Scatters will automatically activate ten free spins for you, and if you hit any extra ones at the bonus spins, you will get five more free spins for that round. This bonus feature allows you to multiply your free spins virtually indefinitely that way.

The Ante Bet is another lucrative bonus that allows you to purchase your free spins, increasing your chances significantly. It works particularly well if you have no nerve for accumulating your free spins and multipliers naturally.

Where to Play Sweet Bonanza for Real Money

The best bonuses for playing the slot with real money are provided by:

  • JVSpin Casino (€1500 up to 150 Free Spins Welcome Bonus)
  • Playamo Casino (150% up to $300 and 100 Free Spins Welcome Bonus)
  • N1 Casino (€400 Deposit Bonus + 200 Free Spins Welcome Package)

Mega Moolah by Microgaming, 94% RTP

Probably the largest global provider of top-quality slots, Microgaming offers its visitors almost a thousand games, releasing on average one new game every two weeks. Operating the most extensive network of online slot machines in the world, the company has already paid over $1 billion in winnings.

Its most popular game, Mega Moolah, will grip you with its funky jungle action and shower you with its generous payouts and humongous jackpots. Moreover, its most advanced visual effects and excellent music guarantees to keep you playing at a high pace until you make a good fortune at the end.

Mega Moolah Symbols, Winning Combinations and Payouts

The slot has three rows, five reels and 25 paylines. But the best thing about Mega Moolah is that the more you wager, the higher are your chances of hitting the bonus jackpot. Plus, you can even hit a jackpot of 225,000 coins with your free spins.

The savanna animals serve as symbols in this game, and the Lion King has the highest value, of course. You can play a maximum of 25 lines at each spin, and you will have the highest chances of winning the best jackpots if you play all 25 lines at the same time, staking at least 0.01 per each. The maximum payout reaches 11250 times your wager.

Mega Moolah Bonus Features

The game’s best extra features include:

  • Great Lion, five of which give you 15,000 coins
  • Funky Monkey or three concurrent scatters to gain 15 free spins
  • Four progressive jackpots, the largest of which so far has been over €13 million!

Where to Play Mega Moolah for Real Money

You will find the best bonuses on Jackpot City, Golden Tiger and All Slots. All three offer 100% bonuses for over $1,500 and plenty of free spins for a starter.

The Best NetEnt Slots

A quarter of the century since its foundation, NetEnt has become almost the most popular and probably the most commercially successful gaming content provider in the world. Yet, its popularity continues to rise. Its games are famous for their vibrant 3D graphics and crystal-clear sound. On top of that, NetEnt provides plenty of unique bonuses, and all its games are available online and on a mobile device.

NetEnt manages impressive 36 billion gaming transactions per year on more than 200 reputable online casinos across the world, and it is the slot machines that have boosted its reputation the most. On this page, we have selected the two most popular NetEnt slots in 2021.

Gonzo’s Gold by NetEnt, 96.8 RTP

If you love exotic adventures, Gonzo’s Gold is the best game for you. It will take you deep into the jungle of South America in search of the wealth of the Incan temples. The most fantastic graphics and psychedelic plots will give you the best adrenalin rush of your life.

Gonzo’s Gold Symbols, Winning Combinations and Payouts

There are seven symbols, all related to some items from the temples. The Golden Mask and the Question Mark are the two that you want the most. The Mask is a Free Fall Scatter that you need to receive lots of free spins, and the Question will stand for any other symbol, except for the Scatter.

Gonzo’s Gold provides five reels, three rows and 20 paylines, and your potential winnings can go up to 6,500 times your bets.

Gonzo’s Gold Bonus Features

The slot is particularly famous for the three extras:

  1. The Bonus Multiplier that grows up to five times on consecutive wins
  2. The Avalanche Reel, whereby symbols literally explode into new and more numerous ones every time you strike a winning combination
  3. The Free Spin: every time you get three Free Falls in a row, you receive ten free spins, and the multiplier grows up to 15 times your wager

Where to Play Gonzo’s Gold for Real Money

The best games for real cash are on:

  • CasinoChan (100% up to €400 + 120 Free Spins)
  • Ivi Casino whose Welcome Package includes 100% up to €500 and 200 free spins

Mega Joker by NetEnt, 99% RTP

Besides the highest RTP on the online casino market, Mega Joker offers its players the best visual and sound effects, making the game potentially the most attractive slot machine to date. The overall experience is so realistic that you will feel as if you were playing inside an actual brick-and-mortar venue.

Mega Joker Symbols, Winning Combinations and Payouts

This slot is unusual in that it provides two sets of reels instead of one. Each of them consists of three reels, three rows and five paylines, and the symbols it uses are the traditional fruit icons. The lemon, for example, will pay off ten times your bets, whereas the bell multiplies your wager by 100.

If you place higher bets, Mega Joker will give you more valuable symbols to play with:

  • Grapes – 500 times
  • Cherry – 1000 times
  • Mega Bell – 1,200 times your bets

The best is the Mega Joker plus seven symbols, which multiplies your bets by 2,000.

Mega Joker Bonus Features

The slot does not provide as many bonuses as the other games do, though, its jackpot being the best one so far, and surprisingly Mega Joker offers no free spins. However, you will have good chances of winning up to $30,000 in jackpots every week, provided you play with the highest stakes of 200 bets outside the Supermeter mode.

Where to Play Mega Joker for Real Money

The following are the most popular online casinos to play the slot for real money:

Final Word

These are the best online slot games that have kept millions of people around the world riveted to their screens in 2021. Apart from that, these casino games happen to provide the highest RTP available on the online gaming market to date.

You are welcome to browse the list to select the ones that best suit your tastes and purposes or play them all, one by one. Either way, we hope our selection will help you have a lot of fun and enjoy plenty of lucrative spins this year.