Best Slots to Play with Free Spins Bonuses

If you plan to use casino bonuses and in particular free spins bonuses, it is worth knowing and understanding which slots will give you the best chance of winning real money. It is also important to understand how free spins bonuses work and how you can determine what the best slots are for your real money gaming. In this article, you'll discover the most popular slots used in free spins promos as well as how to choose the best slots to play when using a free spins bonus.

There are a number of things you need to be aware of when using a free spins casino bonus to play the best slots. The first is that you might be limited to the games you can use your bonus on. You will often be restricted to a handful of titles and sometimes just one or two specific slots. This means that you can't play any other games and quite often the titles chosen are not big money games. This does however mean that you can use your promo to learn how to play the games and trigger all the bonus features so when your bonus spins are over, you'll be able to play more effectively and maximize your winnings. Another thing to remember is that you will be limited to the amount you can bet and if you've claimed a no deposit code, there will be a limit on the amount of real money you can win. With that said, for slots fans, free spins are the best casino bonus to claim and you'll understand why by the end of this article.

best slots for free spins

Most Popular Free Spins Slots

If you've been looking at free spins offers; you'll have noticed that there are a number of slots that are commonly used by online casinos. These are popular choices with many players and below you will find a brief overview of each of them.

  • Starburst: NetEnt's Starburst is a popular choice for many and it is consistently used in no deposit free spins bonuses. One of the reasons for this is that it has a high RTP of 96.09% as well as a low volatility rate. This means you get plenty of small wins on a regular basis. It has 5 reels and 10 paylines with spins per payline starting as low as 0.01. The highest payout is 5,000x your stake. The one thing it is missing though is bonus features. There is no bonus game, but you can play it with no deposit at 888 Casino.
  • Book of Dead: This is a Playtech slot with 5 reels and 10 paylines. It has a 250,000 coin (5,000x your wager) jackpot with spins starting as low as 0.10. The RTP is 96.21%. Unfortunately, this is a high variance slot which means the bigger wins tend to come from the free spins round and they are less frequent.
  • Boom Galaxy: This is a Microgaming space-themed slot with an RTP of 95.2% released at Jackpot City casino in 2019 and you can get a 50 free spins no deposit bonus to try it out. It is a fun game that takes players to a number of galaxies and has numerous bonus features including bonus spins, wilds, and multipliers. The maximum payout is 150,000 coins on this 5 reel, 15 payline game. Play it with free cash at Jackpot City Casino.
  • Mystical Zodiac: This is a horoscope-themed slot based in space with 5 reels and 15 paylines that you can test out with 50 free spins at Spin Casino. Symbols include the Sun, Moon, and all the horoscopes which help to create winning combinations. Players choose their own zodiac sign for even more fun.
  • Gonzo's Quest: This is a 5 reel, 20 payline slot from NetEnt which features 3D animations and the lost city of gold. Spins start from 0.20 and there are three different bonus features including multipliers up to 15x. The RTP is 95.97% and the max jackpot is 37,500x your wager. It is a medium to high variance game so you can get big wins on base game spins up to 2,500x your stake but the largest of wins come in the Free Falls feature.
  • Age of Gods: This Playtech slot has 5 reels and 20 paylines and is part of a series of games from this provider. Spins start from 0.20 and there are four progressive jackpots to be won. It has a 95.02% RTP and six different bonus features including multipliers up to 5x. The biggest wins come in the free spins feature and you can get up to 10,000x your wager. Add the 5x multiplier to this and it goes up to 50,000x your bet. This is a medium to high variance slot.

How to Choose the Best Slots when Using Free Spins Bonuses

There are a number of factors to take into consideration when choosing which of the best casino slots to play for real money and these are explained below.


One of the biggest factors when choosing which casino slots to play is the volatility. Volatility tells you how often the symbols change, the variance in their appearance, and how different each spin will be as you play. It essentially means, how regular the payouts will be and what their size is. You'll find low, medium, and high volatility slots. A lower volatility slot machine has fewer events that will change the spins and slots with high volatility will have a lot more changes occurring on the reels. You'll usually find volatility stated on the game's instructions and another way to tell is by looking at the payout table. If the difference between the amount you win for three of the same symbols or six of the same symbols is small, then the variance is probably low.

Players who want to play the best slots for entertainment purposes will find titles that have a lower volatility more appealing. These are games that allow you to spend little but have a large amount of spins. The payouts tend to be lower but more frequent. These slots are perfect if you like winning often but you may find that the maximum jackpot is limited to 1,000x your wager. With low variance slots you are more likely to win every three to four spins which means there is less risk. The downside is that you might have to play for a long time to win a large amount.

Medium variance slots are suited to players looking for bigger wins and excitement.

High volatility slots have much bigger payouts but the hit rate is quite low and it means you will have to spend a large amount in order to see a return in your investment. This style of slot tends to appeal to players who are after the big wins. These tend to be higher risk slots and can empty your bankroll quite quickly or net you a huge real money jackpot.

Return to Player (RTP)

The RTP percentage is the amount of money a player can expect to get back when playing the best slots over a period of time. The RTP can range from 90% up to 98% and the higher this is the better. Both variance and RTP should be looked at because the variance will tell you how frequent wins will be and how big.

Low Variance Slots and Casino Bonuses

Casino bonuses come with wagering requirements which means you have to wager a certain amount before you can cashout your winnings. The reason why a lot of new players tend to lose their winnings while using a bonus is that they play medium or high variance slots. If you play high variance slots and hit a losing streak it can be very easy to try to chase the free spins round to try and recoup and never get there. To stop this from happening it is recommended that you play high variance slots when you first get your bonus and then switch to low variance slots toward the end. Low variance slots can be great if you play high RTP titles and when you are playing with a promotion and don't want to risk your winnings. They may have smaller wins, but they make it easier to clear the wagering requirements.

Top 10 Slots with the Highest RTP

Most new casino players look for slots with the highest RTP when playing because these tend to offer the lowest risk over time. Below are the top 10 slots in terms of the highest RTP but we've also included the variance so you can decide if they are right for you.

  1. Avalon II - 97% RTP medium variance
  2. Guns 'n' Rose - 96.98% RTP with a low to medium variance
  3. Thunderstruck II - 96.65% RTP high variance slot with a hit frequency of 32.62%
  4. Wheel of Fortune - 96.6% RTP medium variance
  5. Mega Fortune - 96.4% RTP low variance and progressive jackpot
  6. Starburst - 96.1% RTP with low to medium variance
  7. Wizard of Oz - 95.99% RTP with medium variance
  8. Flaming Hot - 95.53% RTP with medium variance
  9. Book of Ra Deluxe - 95.5% RTP with very high variance that often takes up to 200 spins to trigger the bonus feature
  10. Triple Diamond - 95.06% RTP with medium variance

Best Slots to Play with Your Casino Bonus

Now that you understand RTP and volatility, it should be easier to select the best slots to play with a casino bonus. Low variance, high RTP slots will always be a better choice when clearing wagering requirements and there are some specific titles that you can choose, as well as specific software providers.

RTG's Asian games such as Ancient Gods, Dragon Princess, and God of Wealth are all low variance with high RTP percentages and a great choice.

While NetEnt's Starburst frequently appears with free spins bonuses, the Rocks Trilogy of slots is a great choice for bonus players. It consists of the Guns 'n' Roses slot, Jimi Hendrix slot, and the Motörhead slot. These are all music-based and a fourth has been added to the lineup too. The Ozzy Osborne slot. They all have 5 reels and 20 paylines with spins starting from as little as 0.20. They all also come with amazing soundtracks and plenty of wins. You'll find re-spins, multipliers, wilds, bonus bets, and more.

best free spin slots

Top Slots with the Most Free Spins

Of course, we know here at No Deposit Wow that it's not always free promotions that slots players use, and some players choose titles because of their bonus features. These can include multipliers, wilds, bonus games, and free rounds. There is nothing more exciting than spinning the reels and landing a ton of free spins. Below are the top 5 slots that have the most spins in the bonus features. Don't forget to check out the best free spins bonuses for 2024 so that you can use them to play all the amazing best slots featured on this page.

  1. Samurai Split - This slot is by NextGen Gaming and has 5 reels and 25 paylines. It takes the number one spot offering players the chance to land 480 free spins. To trigger the free spins you have to get the Flag scatter symbols. Three will get you 5 spins but land 5 and you get the full 480.
  2. Siberian Storm - This IGT slot has 240 free spins up for grabs and is a 720 ways to win slot. If you land five Tiger Eye symbols you'll get 96 free spins in the base game but this can be increased to 240 if you land the Tiger Eye during the bonus round.
  3. Cleopatra - This is another IGT slot with 5 reels and 20 paylines. You have the potential to get 180 spins. You first get 15 spins but during the bonus round more can be added to get you up to the full 180.
  4. Fortunes of Sparta - This is a 5 reel, 25 payline slot from Blueprint Gaming and it offers up to 100 free spins along with a RTP of 97.04% which makes it a great choice for real money players.
  5. Rainbow Riches Reels of Gold - Number five on our list is this excellent slot from WMS which is packed full of bonus features such as multipliers, wilds, wild bursts, and up to 100 free spins.