Grosvenor Casinos is part of the Rank Group Licenced and regulated by The UK Gambling Commission for UK customers playing on our online sites or at our land based casinos/bingo clubs. Licenced by The Alderney Gambling Control Commission for non-UK customers playing at our online sites. 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).

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The Grosvenor Casino is a recognised name in the UK thanks to the number of casino halls they have up and down the country. This will certainly help them attract new customers and has provided a boost to their online service.

The chain was established in 1970, so have been providing casino gaming in some form for over a decade now. Few other companies can offer the level of experience in the industry that Grosvenor can.

Here is a look at their service, including what new players can receive from them when they sign up.

New Player Welcome Bonus

The welcome offer from Grosvenor is very simple to understand and use, and to make things even better, the amount of bonus you receive is actually bigger than your initial deposit.

The offer is deposit £20 and play with £50.

Deposit £20 of your own funds and this will be 100% matched to give you a total of £40 to play on whatever you like. Then on top of this, you will also receive a £10 bonus specifically to be used on classic slot games or inside the Grosvenor live casino section.

This is a strong offer, allowing you to play games you already love and explore some new elements you may never have used before.

Game Coverage

The size of the game coverage that Grosvenor have in place means that this Casino really is one of the best Slot Sites in the market. They offer a large number of slot games, table games such as roulette and blackjack, live gaming, big jackpots and even poker.

Inside each section of this casino you are going to have plenty of choice. For example, if you only like slot games and don’t ever want to play anything else, you will still have plenty of fun because the Grosvenor Casino has hundreds of slot games waiting for you.

Casino Layout

This is a very simple casino site to use, so if you are looking for your very first online casino then the Grosvenor can give you a simple, user-friendly platform.

Use the top bar to navigate into the game section you want and then to help you even further you will find quick links that appear below when you are in a specific game section. For example, when inside the slot section you have quick links to new games, old classics and the current top 20 games. When in the table section, you will have quick links to view all roulette titles and all blackjack games, if those are what you want to play.

Mobile Play

UK players can take advantage of the mobile service on offer from Grosvenor to take their gaming anywhere with them. They have casino apps available for both iOS and Android devices, so you no longer have to be tied to your computer to play the games you want.

You will find separate apps for the standard casino games and the live ones, you can get one but you may need both if you play both types of game.

Our Verdict

Grosvenor Casino offers an excellent service, with big benefits for new customers. First of all, they get a welcome bonus, offering £50 to spend for a £20 deposit. The layout is also perfect for new players, it isn’t too complicated.

With a huge range of games on offer, the ability to play on mobile and much more, this is a high-quality casino service that we recommend.

Year Established1970

Country (License)UK

Min Deposit£20

Max Deposit£10,000


Supers Slots SiteExceptional pedigreeCustomer Support is 24/7Financial powerhouse, owned by Rank Interactive


Could have bigger bonusesMainly for UK players

Stuck for a good slot on Grosvenor Casino? Here’s our pick of the 10 best Grosvenor slots to play in 2021, so far!

There are so many excellent games in Grosvenor’s online casino; it can be hard to pick out the ultimate games from such an impressive line up. That’s why we’ve put together a list of the 10 best Grosvenor slots to play this December. Note: If there’s a demo game version available at the site, we’ve included details of Grosvenor Casino free play.

  • New to Grosvenor Casino?
    Deposit £20
    Play with £50
    18+, new customers only, T&Cs apply, 5x wagering, min deposit £20.
  • Rating: 4/5
    Grosvenor Slots Highlights
    • 500+ games including new slots and top 20 slots
    • Stacked welcome bonus with just 5x wagering requirements
    • Maximum payouts of up to £250,000 on non-jackpot games
    • Promotions, live casino and Grosvenor Originals games
    If you want the best Grosvenor slots, look at new games, Originals or the casinos featured tab for your best options.

Online slots. There’s just so many of them. But what’s the best online slot for you? Is it games with high volatility, highest RTP or do you want lots of features? We know the sheer number of choices can be overwhelming. That’s why we’re using Grosvenor free spins to help make our assessment.

That’s right, not only is Grosvenor online casino an experienced land-based operator – but their website lets you play free demo versions of top slots and excellent games.


So to help you decide before you play for real money, we’ve ranked the best slots to play at Grosvenor Casino right now – and to play for free!

Our top 10 Grosvenor Casino slots

1. Captain Venture Treasures of the Sea
Grosvenor Best Slot 2021
Why play this game? Sail across the reels battling pirates and discovering treasure with all the fantastic features this game has to offer!
  • Software: Novomatic
  • Theme: Pirates
  • Paylines: 10
  • RTP Payout Rate: 95.07%
  • Features: Wild Sea Change, Anchor Drop Respins, X Marks the Spot Respins, Mystery Multiplier Free Spins, Treasure Chest Anchor
  • Max Win: 2,136 x
  • Bets: Free Demo / 10p – £100
2. Diamond Link Mighty Sevens
Why play this game? Play this new spin on a classic fruit machine, searching for the lucky number 7 to win 750x your stake and a chance to take home the Jackpot!
  • Software: Novomatic
  • Theme: Fruit Machine
  • Paylines: 25
  • RTP Payout Rate: 96.08%
  • Features: Win Spins, Diamond Link
  • Max Win: £250,000
  • Bets: Free Demo / 25p – £37.50

Grosvenor Casino Best Slots To Win On

3. Enchanted Lamp
Why play this game? After the reel spin of any game, look out for the Enchanted Lamp Symbol that transforms hidden symbols into Wilds!
  • Software: IGT
  • Theme: Arabian Genie
  • Paylines: 26
  • RTP Payout Rate: 96.07%
  • Features: Enchanted Lamp, Free Spins Bonus
  • Max Win: 500 x
  • Bets: Free Demo / 16p – £160
Free Play Available
4. Twin Spin Megaways™
  • Software: NetEnt
  • Theme: Retro Starshine
  • Paylines: 117649 Ways to Win
  • RTP Payout Rate: 96.04%
  • Features: Megaways, Twin Reel Feature, Avalanche Feature, Free Spins with Wild Multipliers
  • Max Win: 38,000 x
  • Bets: Free Demo / 10p – £100
Free Play Available
5. Mystery Museum
  • Software: Push Gaming
  • Theme: Ancient Artefacts
  • Paylines: 10
  • RTP Payout Rate: 96.58%
  • Features: Power Gamble, Nudge, Reveal Stacks, Free Games, Mystery Stacks
  • Max Win: 17,500 x
  • Bets: Free Demo / 20p – £5
Free Play Available
6. Slot Vegas MegaQuads
  • Software: Big Time Gaming
  • Theme: Las Vegas Slot Machines
  • Paylines: 256 to 16,777,216 Ways to Win
  • RTP Payout Rate: 96.59%
  • Features: Rainbow Wild Bonus, Free Spins, Multipliers, MEGAQUADS™ Mechanic, Expanding Gameplay
  • Max Win: 45,000 x
  • Bets: Free Demo / 20p – £20
Free Demo Play Available
7. The Demon Code
Most Features
  • Software: NextGen Gaming
  • Theme: Underworld / Fantasty
  • Paylines: Cluster Pays
  • RTP Payout Rate: 96.26%
  • Features: Enter the Void, Demon Summon, Ancient Alchemy, Cryptic Chaos, Dark Design, Fiery Fusion, Win Multiplier, Scatters, Free Game Bonus, Free Game Increasing Row Height, Free Game Enduring Win Multiplier
  • Max Win: 12,500 x
  • Bets: Free Demo / 10p – £20
Free Demo Play Available
8. Fishin’ Frenzy Power 4 Slots

Grosvenor Casino Blackpool

  • Software: Blueprint Gaming
  • Theme: Fishing Trip
  • Paylines: 40
  • RTP Payout Rate: 96.06%
  • Features: Fisherman Free Spins, Super Games, Play 4 Reels at Once
  • Max Win: 20,000 x
  • Bets: Free Demo / 40p – £200
Free Play Available
9. Hex Breaker
  • Software: IGT
  • Theme: Luck and Superstition
  • Paylines: 243 to 59,049 Ways to Win
  • RTP Payout Rate: 94.27%
  • Features: Expanding Reels, Luck Zone, Free Spins Bonus, Jinx Zone (Free Spins Bonus)
  • Max Win: 6,144 x
  • Bets: Free Demo / 80p – £160
Free Demo Play Available
10. Deal of No Deal Golden Box Megaways™
  • Software: Blueprint Gaming
  • Theme: TV Gameshow
  • Paylines: 324 to 117,649 Ways to Win
  • RTP Payout Rate: 95.99%
  • Features: Cascading Symbols, Golden Box, Deal or No Deal, Free Spins
  • Max Win: 50,000 x
  • Bets: Free Demo / 10p – £10
Free Demo Play Available

What are the best Grosvenor slots online now?

Firstly, why Grosvenor Casino? With over 50 years’ of experience in the gambling business, Grosvenor Casinos online site is backed up by unrivalled expertise and care for their customers. Its also loaded with casino promotions, online slots and free spins using the casino’s free play demo games (not all sites can boast of demo games).

Also, when we compare UK casino bonuses, Grosvenor has one of the best offers with just 5x wagering requirements on a stacked welcome bonus.

Ok, back to the online slots!

In the table below, you’ll find 10 Grosvenor Casino slots that stand out against hundreds of other games. We’ve also highlighted the slot with the highest RTP (return to player) payout rate and the best features for each game.

Our best Grosvenor slots RTP is currently Slot Vegas MegaQuads at 96.59%.

RankGrosvenor Casino GamesRTPBest Feature
1Captain Venture Treasure of the Sea95.07%Treasure Chest Anchor
2Diamond Link Mighty Seven96.08%Diamond Link
3Enchanted Lamp96.07%Enchanted Lamp
4Twin Spin Megaways™96.04%Twin Reel Feature
5Mystery Museum96.58%Power Gamble
6Slot Vegas MegaQuads96.59%MEGAQUADS™ Mechanic
7The Demon Code96.26%Enter the Void
8Fishin’ Frenzy Power 4 Slots96.06%Super Games
9Hex Breaker94.27%Jinx Zone
10Deal of No Deal Golden Box Megaways™95.99%Deal or No Deal

How we rank Grosvenor Casino slots in 2021

We’ve played and ranked 10 top Grosvenor slots you can play right now, and we’ll review the list each week. But how do we rank these games? Top Tip! You can use Grosvenor Casino free play to try out most of their top games.

  • Graphics and sound – Image quality and performance can make all the difference. When you’re playing online slots, there’s nothing worse than dull visuals and restless animation. You want good sound detail too. The better a game looks and sounds, then the higher-quality the game. With developers like Push Gaming and Big Time Gaming putting their slots in Grosvenor Casino, you can expect some fantastic looking games.
  • Gameplay – Gameplay is more important than graphics; it’s how we interact with the online slot. It’s the controls; it’s finding your way around the dashboard or the instructions about special features. We look for exciting gameplay, features and entertainment value. Fortunately, there’s a good range of Grosvenor slots online that use bonuses, multi-level games and extras to improve player interaction.
  • Features – If you’re like most of us, you’re going to spend around 15 minutes staring at your display and spinning a set of reels. When you’re playing slots, this can get tedious if there’s very little going on in between. Slot features and in-game bonuses enhance the gameplay, potential prize value and how much you can win. Whether it’s free spins, multipliers, stacked-reels or magic wilds – we take into account features when we compare Grosvenor Casino games.
  • Free Spins – A key benefit of online slots often lies with the free spins, a feature that gives players the chance to win without reducing their bets. Some games offer up to 50 free spins while others provide less, but with enhanced features such as multipliers and guaranteed wins. The best slots at Grosvenor include spin features in the base game as well as the free spins bonus – meaning standard wins can trigger other wins.

Grosvenor Casino Best Slots

  • Pay Lines and Ways to Win – Regardless of any confusion, pay lines and ways to win are the same things. In the past, slot machine players could line of three cherries to win a prize. Today, Grosvenor slots include games with hundreds and even thousands of ways to win. As the most important aspect of any online slot game, pay lines determine a win based on matching symbols. The more ways to win and the higher the volatility, then the greater your prizes will be. When we review slot games, we consider pay lines a huge factor.
  • RTP Payout Rate – Slot games are RNG driven products with a statistically designed RTP (Return to Player) percentage. The higher the RTP, then the lower the house edge over time and the more wins paid out to players. But RTP is calculated over many thousands of games, even hundreds of thousands of games. While theoretical RTP payout rate is worth looking at, we look at slot volatility more. That said, we do include the highest RTP slot in our Grosvenor Casino best slots list.
  • Volatility – Slot volatility is the risk players take when they bet to win money playing online slots. The volatility of slots (and taking into account RTP) determines when you win, how much you win and how big the win. Not all game providers publish slots volatility, instead choosing to market their RTP payout rate – but volatility in slots is a better way of understanding the game and your risk. If you’re willing to take a greater risk, lose more but win bigger prizes, then you’d play high volatility slots. For the opposite, you’d opt for low volatility slots.
  • Minimum and Maximum Stake – How much does it cost to play online slots? Depending on your budget, you’ll be looking to play high stakes, medium stakes or low stakes slot games. We like to consider all budgets when we look for the best Grosvenor slots online, so we look at both minimum and maximum stake. You’ll see that on every game, we’ve included the cost to play including free play if there’s a demo available. We find the best slots offer a wide range of betting stakes, meaning cheap spins or big bets depending on your budget. On average, Grosvenor Casino slots start from between 10p and 20p a spin.

Grosvenor Casino Free Play

If you’re looking to join Grosvenor online casino, it’s one of the few sites to offer free play on some of its games. To find out which slots you can play for free, simply hover over each game in the lobby and look for demo play in the options.

  • Deposit £20
    Play with £50
    18+, new customers only, T&Cs apply, 5x wagering, min deposit £20.

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