Top 10 Highest RTP Slots on CasinoGrounds Right Now

Dan L16/10/2019

Top 10 Highest RTP Slots on CasinoGrounds Right Now

Slots come in all themes, styles and designs, so deciding which one to play is not always an easy choice. You may choose to eliminate which slot to play by gaming provider or volatility whereas the more elite slot players will determine which slot to play based on the Return to Player (RTP). 

After all, the highest RTP slots will pay out more, in the long run vs. those with a lower theoretical return to player.

Quick Facts That Are Good to Know:

  • RTP = Return To Player
  • Volatility = How swingy the game is

Volatility explained: A player can expect less, but bigger wins on a high volatility slot, vs. regular, small wins on a low volatility slot. 

RTP explained: Return to Player percentage (RTP) is a theoretical percentage of all money wagered on a slot machine (or other casino game) which will be paid back to us – the players – over time. This is a number based on an infinite amount of time and spins.  RTP is just the flip side of house advantage. 

House Edge explained:  A slot machine; Rainbow Riches: Home Sweet Home has a 2.25% house edge. This means that for all money wagered on this game, the theoretical Return To Player would be 97.75%

Note: This list will be updated on a monthly basis, should we review a game that has a higher RTP than those listed below. 

Here you are, our 10 handpicked slot games, with the best RTP available here at CasinoGrounds. 

Slots With Highest RTP Return To Player Volatility
1. Rainbow Riches Home Sweet Home 97.75% Medium
2. White Rabbit Megaways 97.72% Very High
3. Medusa Megaways 97.63% High
4. Gangster Paradise 97.26% Medium
5. Tut’s Twister 97.10% Medium
6. Medusa 2 97.07% Medium
7. Viking Treasures 97.03% MLow
8. Wild Swarm 97.03% Medium
9. Spinal Tap 97.02% High
10. Fruit Warp 97.00% Medium

Looking for an online casino to try out the games? Check out our Online Casinos Index.

#1. Rainbow Riches: Home Sweet Home

Rainbow Riches Home Sweet Home slot has the highest RTP here at CasinoGrounds of 97.75%. Designed by Barcrest and released October 2018, this slot is one of the latest releases in the Rainbow Riches series. 

The layout is a 5×5 reel set and is a medium volatile video slot. With 50 fixed pay lines, Rainbow Riches Home Sweet Home is playable from €0.10 up to a max bet of €500 per spin.

Set in a meadow with a little green attired Leprechaun, Home Sweet Home has four wooden gates housed within the bushes. These each plays a part in the Knock-Knock Bonus feature where symbols transform into Wild symbols. You can be awarded more added Wild symbols when you trigger the Free Spins Bonus feature where there is up to 16 free spins to win. 

Rainbow Riches Home Sweet Home slot also comes with a Big Bet feature. You can pay €20, €30, or €50 which will grant you five linked spins with some significant advantages such as activating the Knock-Knock feature, removing the lower value symbols etc. 

To find out more about the benefits and features this slot game has to offer, click your way to our Rainbow Riches Review. 

#2. White Rabbit Megaways


White Rabbit Megaways, a high roller favourite is a Big Time Gaming slot released in October 2017. This 5 reels Megaways slot machine has 16,807 ways to win and has the second-highest RTP of 97.72%.  You’ll often see this slot featured in Big Win clips and pictures throughout our forum.

Playable from €0.10 up to €20 this BTG slot is inspired by Lewis Carroll’s famous book “Alice in Wonderland”. You will notice Alice herself and the White rabbit represents the higher paying symbols such as the Scatter and Wild. 

Just like in the book, the features in this game add a magical twist to the slot. By landing three Scatters will trigger the free spins feature awarding you 15 free spins. You may also come across the caterpiller who will add up to four Bonus wild symbols to the reels. 

White Rabbit Megaways also has several other exciting features such as extending reels and a rather appealing cupcake symbol. Read more about this game – click your way through to our White Rabbit Review.

#3. Medusa Megaways

Medusa Megaways is a highly volatile slot released in April 2019 by NextGen Gaming. Payable from €0.25 up to €25 this 6 reel slot has up to 117,649 ways to win! With the third-highest RTP of 97.63%, you can enjoy this slot, right here at CasinoGrounds. 

Following the Greek Myth theme, NextGen designed this slot with the reels set inside an old temple. The backdrop shows old Greek ruins in the foreground with an ancient temple sitting high on a hill. The symbols are all represented by ancient Greek mythical characters such as Medusa herself, a soldier and a white unicorn. 

There is also plenty of great features in this slot which are all theme-related too. Some of the features include; Snake Strike where snakes appear at either side of the reels during the free spins round. 

There is a Temptation Feature where at the end of the free spins round the feature offers the opportunity for you to choose to either take your winnings or take your chances and play the entire round again. 

To travel back in time and discover more about this Greek myth slot check out our Medusa Megaways Review.

#4. Gangster Paradise

Gangster Paradise is a 1920’s mobster-themed slot from Novomatic’s Interactive division, Greentube released in February 2019. With 25 fixed paylines this 5 reel slot has an RTP of 97.26%

Playable from €0.25 to €100 this medium volatile slot allows you to roll with the high-end ghetto gangsters. To the left of the reels, you will find a gangsters moll standing elegantly, wearing a blood-red dress and to the right a gangster in a three-piece suit holding a machine gun. 

Except for the lower value symbols, they all follow the gangster theme, including the gangster’s car, an undercover cop, a Gold badge, the gangster’s moll, and the gangster himself.

When it comes to special features, this slot only has one to offer, which is Gangster Paradise free spins. I am not a fan of this game at all, however, it does have the fourth highest RTP here at CasinoGrounds which is how it made it on the top 10 list. If Gangsters Paradise sounds like your cup of tea, check out our review by clicking the link at the start of this paragraph. 

#5. Tut’s Twister

Tut’s Twister is an ancient Egyptian-themed Yggdrasil slot, launched in July 2018. Playable from €0.10 – €125, this 25 payline slot has an RTP of 97.10%

Set in an old temples room, this video slot follows a Pharaoh themed. To the left of the reels, you will find the Pharaoh himself. You can also expect to find symbols like the Wild Tutankhamon, scrolls, jewellery and pendants.

Tut’s Twist has two main features, Tut’s Twister Feature and The Mystery Symbol. The Mystery symbol in Tut’s Twister has four different random triggers, which can be selected on each spin. 

If you enjoy a good ancient Egyptian theme slot, then why not give it a try? You can find out more about the slot and its features right here at CasinoGrounds by clicking the following link. 

#6. Medusa 2

Medusa 2 is the follow up to NextGen’s highly successful Greek mythology slot. Released on June 2019, NextGen designed this 5 reel slot with medium volatility and 243 ways to win. With an RTP of 97.07%, you can play Medusa 2 from €0.25 up to €50 per stake. 

If you enjoyed Medusa Megaways Slot game, then you are sure to enjoy this latest version. A Greek temple still frames the game board, however, the design and quality are much better in Medusa 2 to the original. 

The low-value symbols are as expected 10, J, Q, K and A, whereas the High-value symbols include a gold ring, a quiver with arrows, a stone soldier, golden snakes, and a snake helmet.

The game has 2 main special features for you to enjoy. These include; Turned to Stone Stacked Wilds and Medusa’s Locked Reels. If you’re familiar with the legend of Medusa will be aware that her stare can turn a man to stone, which is precisely what happens in this feature.  

During any spin in the base or bonus game, Medusa may briefly appear locking 2-5 reels, before disappearing again. Have you got what it takes to conquer this ancient greek mythical slot? Why not find out more by heading over to CasinoGrounds slot page – Medusa 2 or simply by clicking the link provided. 

#7. Viking Treasures

Viking Treasures is a 5×4 reel set, low variance slot with 50 fixed pay lines and an RTP of 97.03%. Viking Treasure’s theme is based on a battle of a sea monster as the Viking’s search for the hidden treasures in the depths of the ocean.

Radi8 launched Viking Treasure on December 2018, and it was their first game release. The slot game was designed with two main features. The first being Locked Wild Free Spins. To activate this feature, you need to land three or more Scatter symbols to trigger 10 free spins. 

 The Second feature is Radcoins. This feature means that the Rad+ engine will keep a tally of your wagers and convert your loyalty to ‘Radcoins’.

#8. Wild Swarm

Fancy a trip into the enchanted forest? Why not try out this Bee-tastic game? Push Gaming’s Wild Swarm, is a 20 pay line, medium volatility slot game. With 5 reels and an RTP 97.03%, you can play stakes from a minimum of €0.20 up to the maximum amount of €100.

Take a trip into an enchanted forest, where you will come across a busy beehive hanging from one of the trees above the gameboard. Based on bees swarming around the hive the lowest value symbols (J, Q, K, & A) are made from wood.

The higher value symbols include a purple or white flower, a honeypot, a chirpy Queen Bee, and lastly a Dollar Sign draped in honey on a honeycomb background.

There are three main features in this Push Gaming slot which include; The Wild Swarm Swarm Mode, Chest Bonus and Free Spins. All the details about the features can be found in the full slot review by clicking the following link.

#9. Spinal Tap

Blueprint Gaming’s Spinal Tap slot is every Rock music lovers dream. The game has an RTP of 97.02%. Released on June 2019, this 5 reel slot has 243 ways to win, and is playable from €0.30 – €30.

If you are familiar with the 1964 rock band known as Spinal Tap, then you can guess what the theme of the slot is based around. With medium volatility, the game is loaded with special features, ready for you scream and shout about. 

Hint: The best strategy for punters during any offers is to not take them, as this will net you the most return over time. 

The band members themselves represent the symbols, along with the lower-value symbols being the standard 10, J, Q, K, and A. While you enjoy playing you can also listen to Big Bottom by Spinal Tap which plays in the background. 

#10. Fruit Warp

Fruit Warp is a Thunderkick creation, which has a unique twist. What makes this slot so unique you ask? Well, let me tell you. Fruit Warp has no reels, which means when you click the ‘Spin’ button, the symbols come floating towards you. It is also one of few games which don’t offer Scatter or Wild symbols too. 

This highly volatile slot is playable from €0.10 up to the maximum bet €100 and comes with a 97.00% RTP. 

As you have probably guessed from the name of the online slot, the symbols are all represented by different kinds of fruits. 

The only feature this Thunderkick slot has to offer is the Fruit Modes. The feature is triggered when five fruits of the same type appear during a spin. Once you activate the Fruit Modes feature, you will find a warp meter displaying different amounts of steps you need to make to complete the round. 

If you have never played Fruit Warp, I recommend you give it a blast. It’s fun and quirky to play.


Overall there are many fantastic slot games out there waiting to be tried out. Whether you are looking for a slot with a great RTP, high volatility, lots of features or simply just something different from the norm you are sure to find something that suits your needs. 

Here at CasinoGrounds you will find a massive selection of slot games to test, and if there is anything you are unsure of, then head over to the Slots page where you can search for the slot review to find out all the most important details regarding the game. 

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