10 Of The Best Online Slot Games Released In September 2021

10 Of The Best Online Slot Games Released In September 2021
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Welcome to Gambling.com’s Top 10 best online slots from September 2021, where we’re going to take a look at some of the best and most lucrative slots to have entered the market this month. With all of the leading game providers releasing fascinating additions to the tough fight for that coveted #1 spot, the race to the top has never been so hotly contested. If you want to find out who’s taking home the prized trophy this month, keep on reading to find out what our experts had to say!

  • 10. Starlight Princess
  • Starlight Princess is a fun Asian-themed slot which offers great payouts. The slot by Pragmatic Play looks sweet with symbols of stars, moons, suns and hearts, but it is highly volatile. There is no Wild, but we promise you won’t miss it! More than making up for it is the Tumble feature, Multipliers that can go as high as 500x your bet, and Scatters which can also trigger a free spins bonus round. Apart from all that, the game also employs the Win-All-Ways mechanics, meaning you can form combos in all directions. Play Starlight Princess at the max wager of 100 credits at any of our favourite online casinos and you could win up to 500,000 credits!

  • 9. Sabres and Swords: Charge Gigablox
  • This is one slot that definitely had to make it into this month’s Top 10 because of its unique theme. Sabres and Swords: Charge Gigablox by Yggdrasil harks back to the Napoleonic Wars, and you’ll be able to see toy soldiers, army rank badges, a golden cannon, and crossed swords on its 6x6 grid. Like the name implies, there are also giant Gigablox symbols which will count as multiples of the symbols. Crossed swords act as the Scatter, and if a minimum of 5 appear on the reels, they will trigger the Engage the Enemy free spins feature where you’ll get a free game for every scatter, with a maximum of 36 spins. If you’re a fan of military history or are looking for a slot with a quirky theme, look no further!

  • 8. PapayaPop
  • Taking the #8 spot is another slot by Yggdrasil. The latest game in their PopWins series features beautiful graphics that will satisfy the tastes of every Art Deco fan out there. PapayaPop is worth playing because of its stunning visuals, but not only that. The PopWins feature is triggered with every win, increasing the number of ways you can win to 15,552! Reaching the full 6 rows will launch the free spins, giving you extra ‘lives’, multipliers and even more ways to win. For the thrill-seekers, there’s also an option to spin a gamble wheel before the free spins start – and this offers you the chance for extra games, higher multipliers, more rows…or the risk of completely losing the feature! Beware though, the max win of a whopping 10,542x your stake is only possible to reach during the free games. Check out our full review of PapayaPop right here on Gambling.com.

  • 7. Big Boom Riches
  • Microgaming makes it onto the list of the best slot games for September for the first time (but certainly not the last) this month with Big Boom Riches. Quite a few features will be helping you mine for gold in this one. There are 3 Wilds which will all play the usual Wild role, but two of them, the X and the TNT Wilds can also explode, removing adjacent symbols. The Rolling Reels feature trigger on every winning combination, and if you land 3 - 12 TNT symbols during it, you get a prize worth 1x to 5000x your stake! Big Boom Riches also comes with a free spins feature, where each Scatter landed will get you 1+ Free Spin and a 1x Win Multiplier. The max bet is a modest 50 credits, but this can still get you 250,000 at the max win. Boom!

  • 6. Zulu Gold
  • Zulu Gold is a slot that stands out both in terms of theme and features. ELK Studios have taken inspiration from the Zulu people for this slot, including traditional animal carvings and exotic animals as symbols, and a drumbeat soundtrack in the background. They have also made sure to stuff Zulu Gold full with features. The Avalanche feature gets triggered with every win, and there are 3 different types of Wilds which, you guessed it, all have different functions to help you win. Get familiar with the Zulu Stacks feature on our in-depth review of Zulu Gold, see how the sunset bonus symbol can get you up to 25 free spins, and how to increase the number of rows with the Safety Level feature. When you’re ready to discover the treasure of Africa, you can do so at all the top online slots sites.



  • 5. Interstellar Attack
  • High 5 Games takes us back to the arcade with its latest space-themed slot. Interstellar Attack can get you stellar wins, with asteroids, aliens and spaceships accompanying you on your journey. Not just any 5x5 grid, High 5 Games have added an extra reel where spaceships appear and shoot for asteroids. You keep accumulating asteroids until they fill the Power-Up meter. In the meantime, spaceships accumulate in the Spin-Crease meter, upgrading the crystal symbols when you’ve collected enough of them and giving you a payout. Once you’ve filled up the Power-Up meter, the row bomb explodes every symbol in the row, and you either geta diverter or a 10x Multiplier. In case you’re wondering, there’s also a Scatter symbol which can trigger the Interstellar Attack free spins bonus game. There are six levels in this round, and each has its own special payout. Although the slot is still shrouded in some mystery as to what the max win is, we’ve calculated that it’s actually over 1,000,000 credits, so shoot for the stars and play at the best online casinos today!

  • 4. Big Bad Wolf Megaways
  • An addition to the Big Bad Wolf series by Quickspin, Big Bad Wolf Megaways centres around the story of the three piglets and the wolf. Thanks to the Megaways mechanics, you can win big with up to 117,649 ways to win. The Tumbling Reels feature blows away any symbols in a winning combo, new ones drop from above to replace them, and best of all, the feature repeats with every win you form. There is a traditional wild symbol, but additionally, one of the pigs will also become a wild on every second tumble, helping you complete wins. 3 or more Scatter symbols kick in the 11 ‘Blowing Down the House’ free spins, in which every tumble increases a win multiplier by 1x. This means that in the bonus game, it can go up to 30,540x your stake. Big Bad Wolf Megaways is a highly volatile game, but with the chance of winning up to an eye-watering 3,054,000.00, we think that’s quite fair. Find out more about the Big Bad Wolf Megaways slot on Gambling.com.

  • 3. Dr.Toonz
  • Dr. Toonz can be considered the prequel to Play'n GO’s hit title Reactoonz. In this slot, we meet the scientist who created the cute one-eyed monsters, and he’s ready to give you the chance to win up to 22,000x your bet, with Wilds, Scatters, Cascades, Free Spins, and up to 262,144 ways to win! There is a Quantumeter feature which activates a charge feature, a Disintegration feature which removes one-eyed monsters and adds 2 Wilds, a Metamorphosis feature which changes 5 to 8 symbols into a different symbol type, and a Quantum Wilds feature, which adds 2 to 6 Wilds at random. Of course, you can also trigger the Free Spins feature, getting the max. of 25 Free Spins when landing 6 Scatters. If you want to meet Dr. Toonz, head over to one of top-ranked online casinos, take advantage of the best welcome bonuses, and experience all these features yourself.

  • 2. Lucky O’Mega
  • We all love an Irish-themed slot, with promises of pots of gold at the other side of the rainbow. Microgaming has partnered up with GONG Gaming Technologies to bring us a slot filled with horseshoes, clovers, mushrooms, acorns, top hats, and smoking pipes, complete with a leprechaun and a cheerful Celtic tune. Aiding your good fortune are a Sticky feature and a Respins feature. Whether you’re playing in the base game or not, you can also win a Mini, Major, or Mega jackpot worth 30x, 100x, and 1,000x your bet respectively. The leprechaun acts as a special Scatter symbol, paying in any place he appears, with payouts increasing up to 1,000x if more leprechauns appear. Full of good cheer and rewarding features, Lucky O’Mega is definitely one of the best slot games you should try out!

  • 1. Bigger Bass Bonanza
  • What better way to say goodbye to summer than with a fishing-themed slot that offers a great payout taking our #1 spot? Bigger Bass Bonanza is an update of the original slot by Pragmatic Play, still set in Miami, but making it easier to collect wins. Fish symbols can pay instant prizes, and landing 5 fish across a line will get you all of the combined amounts. The bass scatter symbol can trigger up to 25 free spins, and a new fisherman wild symbol can help you complete wins, while also collecting in a meter in the bonus games. Every fourth wild also gets you another 10 free spins. Cast your net wide and win up to 4,000x your bet across all our recommended online casinos.

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