Top RTP Slots at Grosvenor Casinos

by Joe Ellison Last Updated
Grosvenor Casino Logo Image

Playing slots is fun but it’s more fun when you’re winning. One way to improve your chances of winning on slots is to play games with a higher RTP, or Return To Player.

Every slot ever made has an RTP built into it. This is displayed as a percentage and shows how much, on average, the machine theoretically returns to you if you played it an infinite number of times. The higher the percentage, the better it is for you.

For example, a slot machine with an RTP of 95% would return £95 to you for every £100 wagered. Therefore, it has a house edge of 5%.

We’ve scoured through the dozens of slots available at Grosvenor Casinos and pulled out 10 of the highest RTP slots.

Monopoly On The Money (98% RTP)Monopoly on the money slot game logo

Visit Grosvenor Casinos, which can be found on our list of the best online casinos, to play the game that divides families and earns the highest return to player percentage: Monopoly.

Monopoly On The Money has variable scale RTP that goes up to 98%, which is practically unheard of in the casino world. Be warned, the 98% is only possible when playing the game’s Big Bet spins.

You can still bet a wide range of wagers per spin, but the best value awaits in Big Bet. You’ll get an RTP of 94% betting under £2 per spin and 96% for over £2 per spin. Big Bet is different, you choose to bet £20, £30, £40, or £50 and get five spins for your money. The more you spend, the more reels you spin and the larger the potential rewards.

The free spins feature is particularly lucrative. Land three or more Pass GO symbols to trigger the free spins. Wins are awarded for landing matching symbols, but if you land a Monopoly man he gathers any cash symbols, multiplies them by two, and gives them to you.

Provider Barcrest
Game release 12/12/2017
RTP Up to 98%
Variance Medium
Maximum win (coins) 250,000
Minimum bet (Maximum bet) 0.1 (500)
Layout 5×3
Win Lines 10
Features Wilds, Scatter symbols, Bonus Games, Free Spins, Gamble
Theme Monopoly board game
Devices Desktop, Mobile, Tablet
Technology Flash, HTML5 and JavaScript

Cash Stax (97.75%)

Cash Stax slot game title card

Cash Stax is another Barcrest slot machine with a potentially huge RTP, this time up to 97.75%. Like Monopoloy On The Money, you can only achieve this RTP by playing the Big Bet feature. The RTP is 94.00% for spins under £2.00, 96.00% for spins over £2.00 and 97.75% using the Big Bet. Big Bet on Cash Stax either costs you £10 or £20 and the machine spins five times.

You win by landing matching symbols, but you really want to land golden O symbols. Fill the meter across the top and it triggers the free spins round. The more golden O symbols you have the more free spins. Land additional golden Os for the chance to multiply all free spins winnings by five.

It’s not the best looking machine on the market, but it’s one of the highest returning ones we’ve ever seen.

Provider Barcrest
Game release 15/11/2015
RTP Up to 98%
Variance Medium
Maximum win (coins) 250,000
Minimum bet (Maximum bet) 0.1 (400)
Layout 5×3
Win Lines 30
Features Wilds, Free Spins
Theme Classic style, Board game, Retro
Devices Desktop, Mobile, Tablet
Technology HTML5 and JavaScript

Rainbow Riches Drops of Gold (97.75%)

Rainbow Riches Drops of Gold slot logo

Rainbow Riches Drops of Gold is the most recently launched Barcrest slot that has the Big Bet feature that awards 97.75% RTP. This is our favourite of the trio of high RTP Barcrest games not least because it has up to 200 win lines when you trigger the free spins feature.

It has a sliding RTP, like the other Barcrest slots mentioned here. The RTP is 94.00% for spins under £2.00, 96.00% for spins over £2.00 and 97.75% using the Big Bet.

Big Bet for this machine makes you chose to bet £30, £40, or £50. Using the £50 Big Bet doubles your paylines from 50 to 100. The larger the bets, the more low-value symbols are removed from the reels

Big wins are possible via landing three or more bonus symbols. Doing this grants you eight free spins. Landing the “Drops of Gold Symbol” drops the silver and gold pots of gold sliding down the rainbow at the top o the screen. Silver pots act as wilds for every symbol except the bonus. Gold pots act as wilds for everything! Play it to day and we challenge you to come away without humming and whistling the background music!

Provider Barcrest
Game release 26/06/2018
RTP 97.75%
Variance Medium
Maximum win (coins) 250,000
Minimum bet (Maximum bet) 0.1 (500)
Layout 5×4
Win Lines 200
Features Bonus symbols, Bonus game, Scatter symbols, Wilds, Free spins
Theme Irish, Leprechaun
Devices Desktop, Mobile, Tablet
Technology HTML5 and JavaScript

Eye Of Horus (96.31%)

Eye of horus slot game logo

Reel Time gaming launched Eye Of Horus in 2016 and it’s still hugely popular today. The Egyptian-themed slot has an RTP of 96.13% coupled with medium volatility. There is a Megaways edition of this slot but it has a smaller 95.14% RTP.

This is a simple and straightforward game that reminds you of the older slots in casinos, pubs, and clubs. The sound effects are basic and there are only 10 paylines, but the relatively high RTP makes up for this shortcomings.

Eye Of Horus has a spreading wild symbol that can cover all three reel positions. It substitutes for everything except the scatter and bonus symbols. Landing three or more bonus symbols awards 12 free spins. Any additional wild symbols trigger even more free spins.

This is a slot that you can win huge sums of money on. Its maximum payout is set at 10,000-times your bet or £250,000, whichever comes first. Hit the jackpot, so to speak, and your RTP will be extraordinary.

Provider Reel Time Gaming
Game release 07/09/2016
RTP 96.31%
Variance Medium
Maximum win (coins) 10,000
Minimum bet (Maximum bet) 0.01 (20)
Layout 5×3
Win Lines 10
Features Wilds, Scatter symbols, Spreading Wilds, Free Spins, Gamble
Theme Ancient Egypt
Devices Desktop, Mobile, tablet
Technology HTML5 and JavaScript

Who Wants To Be A Millionaire Megaways (96.24%)

Who Wants To Be A Millionaire Megaways slot logo title card

Who Wants To Be A Millionaire is Big Time gaming’s first branded slot so they pulled out all the stops to create a fantastic title. Launched in November 2018, this slot is still one of the most played can be found at our casino games online , particularly in the United Kingdom.

The Megaways system makes it possible to have up to 117,649 win lines. That’s not an admin error, there really are up to almost 118,000 ways to win!

This slot has avalanche wins to make bigger wins possible. Land matching symbols and they are removed from the reels and replaced by symbols in the extra reel across the top of the machine. This can trigger large winning streaks.

Free spins are the name of the game with Who Wants To Be A Millionaire. Three titular scatter symbols give you eight free spins and start the Hot Seat Free Spins Gamble. Extra scatters move you up the prize ladder. Answering questions also moves you up the ladder where up to 50 free spins await.

It’s a great machine if you’re a fan of free spins.

Provider Big Time Gaming
Game release 14/11/2018
RTP 96.24%
Variance High
Maximum win (coins) 50,000
Minimum bet (Maximum bet)     0.2 (10)
Layout 6×7
Win Lines 117,649
Features Avalanche wins, Bonus games, Scatter symbols, Megaways system, Free Spins, Respins
Theme Branded TV show
Devices Desktop, Mobile, Tablet
Technology HTML5, JavaScript

Dawn of Egypt (96.23% RTP)

logo for slot game Dawn of Egypt

Dawn of Egypt from Play’n Go has an RTP of 96.23% in the Grosvenor Mobile Casino but can be as low as 94.19% elsewhere. Make sure you’re playing on the correct version to maximise your winnings.

As the name suggests, this is an Egyptian-themed slot. It was only launched in February 2020 and it hasn’t hit the ground running, but many casinos are still offering it. Dawn of Egypt is a little on the simple side, but that’s part of its charm. If you want a slot machine that’s easy to play, one where you can win up to £250,000 in a spin without having to really concentrate, this slot is for you.

The base game is a little dull because Play’n GO saved all the juice for the bonus round. Trigger it and you’ll win up to 1,000-times your stake for five scatter pyramid symbols (5 or 20x for three or four scatters). You receive between three and 20 bonus spins. Scatters can turn into wilds during bonus spins and these free spins can be retriggered an unlimited number of times. You won’t hit this bonus often, but it’s worth the wait when you do.

Provider Play’n GO
Game release 20/02/2020
RTP 96.23%
Variance High
Maximum win (coins) 5,000
Minimum bet (Maximum bet) 0.1 (100)
Layout 5×3
Win Lines 10
Features Wilds, Free Spins, Bonus wheel, Scatter Symbols
Theme Ancient Egypt
Devices Desktop, Mobile, Tablet
Technology HTML5, JavaScript

Fishin’ Frenzy (96.12%)

slot game Fishin Frenzy title card

There are three versions of Fishin’ Frenzy at Grosvenor Casinos, but the standard version has the highest RTP at 96.12%. The Megaways edition has a 95.02% RTP with the Jackpot King version a mere 94.31%.

We love this slot and so do thousands of others. It combined gambling with fishing and who doesn’t love that combo? Like many high RTP slots, the base game isn’t particularly lucrative, but the bonus round is awesome.

Landing three, four, or five fishing boat scatters gives you 10, 15, or 20 free spins. All the fish symbols now come with a price tag attached to them. Land the fisherman wild during this round and he catches all the blue fish and you win all their price tags combined. It’s possible to win up to 50x your stake for each fish, fishing has never been so profitable!

Provider BluePrint Gaming
Game release 09/07/2017
RTP 96.12%
Variance Low-to-medium
Maximum win (coins)
Minimum bet (Maximum bet) 0.02 (20)
Layout 5×3
Win Lines 10
Features Scatter symbols, Wilds, Free spins, Symbol substitution
Theme Fishing
Devices Desktop, Mobile, Tablet
Technology HTML5, JavaScript

Atlantis Megaways (96.10%)

Atlantis Megaways slot game logo

Reel Play’s Atlantis Megaways is another slot machine that gives you up to 117,649 paylines. You can bet between £0.25 and £25 per spin across all devices and win up to 8,641x your stake for a maximum possible win of £216,025.

You always play with at least 324 win lines and up to 117,649 on Atlantis Megaways. The big wins become possible by the slot’s cascading wins where winning symbols are removed and replaced with new symbols and new winning chances.

You will find a respins feature if you’re lucky. You need six scatter treasure chests which become sticky and you receive three free spins. Any additional scatters reset the free spins back to three. This round only ends when you run out of free spins or the screen is full of scatters.

There is a possible 2,000x your stack Grand Jackpot that can be won, but the base game is more lucrative, which is strange.

Provider Reel Play
Game release 27/02/2020
RTP 96.10%
Variance Medium-to-High
Maximum win (coins) 8,641
Minimum bet (Maximum bet) 0.2 (100)
Layout 6×7
Win Lines 117,649
Features Avalanche wins, Free Spins, Megaways System, Wilds, Scatter symbols
Theme Greek Gods, Underwater world
Devices Desktop, Mobile, Tablet
Technology HTML5, JavaScript

Prowling Panther (96.09%)

Prowling Panther slot game title logo

Prowling Panther by IGT has a 96.09% RTP at Grosvenor Casinos but other casino have between 92.09% and 94.09%. It’s obvious which you should be playing.

This slot is unique in that it doesn’t have a traditional layout, instead it has a 3-4-5-4-3 layout much like a honeycomb you’d find in a beehive. This different layout also has 720 paylines which cost 50 coins to play. This makes the minimum bet £1.00 and the maximum bet £50.

You can win up to £250,000 on the Prowling Panther slot, but you need to hurry because the game runs on Flash which Google is stopping supporting in December 2020. Other browsers may follow suit and it doesn’t look like IGT is going to revamp Prowling Panther as it’s been in circulation since February 2015.

It’s definitely worth a spin or three not least for the nostalgia factor. This classic slot is good fun, especially if you like vibrant colours and jungle animals. And let’s be honest, that’s all of us.

Provider IGT
Game release 10/02/2015
RTP 96.09%
Variance Medium-to-High
Maximum win (coins) 250,000
Minimum bet (Maximum bet) 50 (2,500)
Layout 3-4-5-4-3
Win Lines 720
Features Wilds, Free Spins
Theme Jungle, Wild animal
Devices Desktop
Technology Flash

About the Author


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Joe is a journalist, editor and copywriter who specialises in sport, politics, film and the gaming industry. He works on Fleet Street for national newspapers and other publicans across the UK and in North America. He is an experienced product reviewer and editor for global brands and gambing companies. He has interviewed everyone from elite sport stars to the next generation of influential business people.
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