
The Home of Online Slot Reviews
Welcome to Online Slot Master – a brand new site written by me, Scott Daniels to bring you authentic slot reviews wherever you are in the world! I’veĀ been playing land-based and online slots since 2004, and it’s fair to say I know a thing or two about them. I can give you objective opinions on which are the best to play, as well as which slots you should avoid!
You won’t find hundreds of reviews here yet, because, unlike countless other websites, Online Slot Master isn’t a company and I don’t have a team of writers! That’s how you can be sure you’re getting honest reviews as opposed to mass-produced rubbish purely aimed at getting you to click affiliate links. You can read more about my reviews in the ‘About’ section, and learn why Online Slot Master is different from the rest.
Latest Reviews
I’m building the review collection as quickly as I can, and now feature online slot reviews from the biggest providers such as Microgaming, NetENT, Big Time Gaming, Novomatic, Pragmatic Play, and Play N’ Go. You’ll find a great choice in the slot review section.
Top Rated Casinos
T&C’s apply. 18+, UK residents only. Players are only eligible to take part in one Welcome Offer, if you have already qualified for the sports welcome offer you will not be eligible for the Casino Free Spins offer. Both offers cannot be claimed. First deposit and Stake Ā£10 on casino slots. On qualification of the promotion, you will receive Free Spins on Big Catch Bass Fishing. Qualifying players will have the Free Spins credited to their account the following day by 5pm. Free Spins will expire 7 days after award. Available only once to each new customer. BeGambleAware.org
- No cap on free spin wins
- Low wagering requirements
- Diverse game & betting options
T’s&C’s apply. New players 18+ only. Min deposit Ā£10. 100% up to £100Ā + 30 Bonus Spins on Reactoonz. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5Ā bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply.Ā BeGambleAware.org
- 24/7 Live Chat
- High withdrawal limits
- Extensive slot selection
T’s&C’s apply. New UK customers 18+ only. Opt-in required. 20 Bonus Spins on āSahara Riches Cash Collectā and 100% Deposit Bonus up to Ā£25 on first deposit. Min. deposit Ā£10. 30x wagering requirement for Bonus Spins and 30x wagering requirement for Deposit Bonus (game weighting applies). Max. Ā£5/spin or Ā£0.50/line. 30 days expiry. Terms and Conditions apply. Please gamble responsibly BeGambleAware.org
- Immersive rewards scheme
- No withdrawal limits
- A great all-rounder
T&C’s apply. New customers only. Register with code GAMES100. Deposit and stake Ā£10 or more, within 7 days, on Slots at Betfred Games to receive 100 Free Spins on selected titles. Free Spins credited within 48 hours. Free Spins are valid for 7 days. E-Wallet & Card restrictions apply. SMS validation may be required. BeGambleAware.org
- Trusted big brand
- 24/7 Customer Support
- Slots & more betting options under same roof
18+.Ā New players only. Min deposit £10. Bonus funds are 121% up to £100. Bonus funds are separate to cash funds and subject to 35x wagering requirements. Only bonus funds count towards wagering contributions. Ā£5 bonus max bet. Bonus funds must be used within 30 days, and spins within 10 days. T’s&C’s and affordability checks apply. BeGambleAware.org
- 24/7 Live Chat
- High withdrawal limits
- Great for high rollers
T&Cs apply. New players 18+ only. Opt-in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. BeGambleAware.org
- Excellent Support
- Unlimited Withdrawals
- Great for high rollers
T’s&C’s apply. This offer is only available for first time depositors. 18+ only. Min deposit is Ā£10. 50 Free Spins on Book of Dead. Spin Value: Ā£0.10.Ā After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section.Ā No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJOās Rewards and Game Play policy applies. BeGambleAware.org
- No wagering requirements
- Great for new players
- Huge slot selection
T’s&C’s apply. 18+ only. Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus Ā£50. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: Ā£0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min Ā£0.10) of the free spin winnings and bonus amount or Ā£5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance.BeGambleAware.org
- 24/7 Live Chat
- High withdrawal limits
- Wide slot selection
T’s&C’s apply. Welcome Bonus only available to new players making a min deposit of Ā£10. Welcome Bonus only available for max 1st deposit up to Ā£200. Welcome offer can be used only once upon 1st deposit and is valid for 30 days. 35 x wagering applies and some casino games such as progressive jackpot games are excluded from wagering requirements. The 100% bonus up to Ā£ 200 will be paid out in 10% increments to your Main Account balance. Bet size limits apply. Players must be aged 18+. BeGambleAware.org
- Over 7000 slots!
- 24/7 Customer Care
- Fantastic loyalty bonuses
T’s&C’s apply. 18+ only. First Deposit Only. Maximum amount of Free Spins is 100. Free spins will be credited in the game Thor the Trials of Asgard. Free Spin Value: Ā£0.10 per spin. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min Ā£0.10) of the free spin winnings amount or Ā£5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. BeGambleAware.org
- New big brand casino
- Great for free spins
- Diverse slot selection
T’s&C’s apply. 18+ only. First Deposit Only. Game: Masked Singer UK, Spin Value: Ā£0.10, Max Free Spins: 100. WR 60x free spin winnings amount (only Slots count )within 30 days. Max bet is 10% (min Ā£0.10) of the free spin winnings amount or Ā£5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance.BeGambleAware.org
- Live chat
- VIP club
- Extensive slot selection
Terms Apply. 18+ only. First Deposit Only. Game: Spina Colada, Spin Value: £1, Max Mega Spins: 50. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. BeGambleAware.org
- Telephone support
- Manual flushing
- Over 2000 Slots
No Nonsense Slot Reviews
If you’re new to Online Slot Master, you will have noticed that I don’t yet have thousands of reviews. That’s because my reviews are authentic and based on my own experience. If I haven’t played a slot for a while, it will take time to play it with my review head on so I can refresh my memory of all the good and bad points! I focus on creating content that’s actually useful rather than creating enticing reviews just for the sake of clicks.
My recent review of Lil’ Devil proves the point. It’s actually a really popular slot that gets a lot of love, but I was left quite underwhelmed! If you’re serious about researching slot reviews before you play, then I guarantee you’ve come to the right place for genuine information.
Best Casinos for Online Slots
The best online casinos will have something for everyone, no matter if you’re new to slots, or a veteran player. Each one of the featured casinos is fully licensed, and each is regulated by the UK Gambling Commission, so you can be sure you’re playing safely. I take safety and privacy very seriously, which is why I will never show links to any online casino that doesn’t have a robust responsible gambling policy. I have played at all the brands I feature, and there will be pros and cons to each of them depending on what you’re looking for. However, none of the featured casinos will compromise your safety, security and deposits. So take your pick and enjoy your experience!
How I Create My Reviews
I’m putting a lot of effort into creating my slot reviews, but that means I get to spend a lot of time playing! However, I know that no matter which slot you play, your experience will be based largely on how much you win or lose. I have therefore decided to focus my reviews on the experience rather than being swayed by personal wins or losses. I’ve broken the review down into 4 distinct areas:
Theme
All online slots have a visual theme and whilst many are based on actual TV shows, or films, there are so many more that have an entirely original concept. The slot reviews look at the theme, graphics and animation to gain an overall sense of how visually entertaining the game is.
Soundtrack
A large part of your experience whilst playing a slot will be based on the incidental sounds for wins etc or the soundtrack that sits behind normal or bonus gameplay. The sounds you hear whilst playing are an integral part of the entertainment, so my online slot reviews look at whether they add to the overall experience and if that’s a positive thing.
Gameplay
Here I look at the overall gameplay of the slot. An online slot with high volatility is unlikely to produce wins as much as one with low volatility during the time you play. The question with any game though is whether the wins are sufficient enough to keep your attention and keep you entertained. That’s why my slot reviews look at the speed of play, and the slickness of the slot. I also take a look at some of the additional features to the slot and whether they improve the overall experience.
Entertainment Value
Here, I have combined all of the elements examined so far to reveal the overall entertainment value of the slot. This takes into account my personal experience and enjoyment regardless of wins or losses. Is the slot likely to leave you wanting more, or will you never return? You can find out what I thought without spending a penny.
The Overall Rating
Each of the examined elements is given a percentage score. The overall rating is simply an average of all the elements which should give you the heads up of what you can expect.
%
Theme Scored
%
Soundtrack Scored
%
Gameplay Scored
%
Entertainment Value Scored
%
Overall Average Score
Hall of Fame
Hall of Shame
How Do Online Slots Work?
Have you ever wondered how online slots work? Perhaps you think you know a way to beat them, or maybe you think they’re all rigged? Find out all the facts at our Online Slot FAQ HQ!
Or if you want to find other gambling-related articles, you can check out our blog section below.
Online Slot Master Blog
Understanding Slot Machine RNG’s
Slot machines, a cornerstone of the gambling industry, can be found everywhere from the glitzy...
Playing Online Slots & Bankroll Management
Playing online slots can offer a thrilling ride through a world of vibrant graphics, engaging...
Crypto Casinos: The Future of Online Gambling?
In the fast-paced digital age, technological advancements have revolutionised various industries,...
The Home of Online Slot Reviews
Welcome to Online Slot Master – a brand new site written by me, Scott Daniels to bring you authentic slot reviews wherever you are in the world!

Latest Slot Reviews
I’m building the review collection as quickly as I can, and now feature online slot reviews from the biggest providers such as Microgaming, NetENT, Big Time Gaming, Novomatic, Pragmatic Play, and Play N’ Go. You’ll find a great choice in the slot review section.
Top Rated Casino

80 Free Spins on Book of Dead with First Deposit. No wagering Requirements!
T’s&C’s apply. This offer is only available for first time depositors. 18+ only. Min deposit is Ā£10. 50 Free Spins on Book of Dead. Spin Value: Ā£0.10.Ā After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section.Ā No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJOās Rewards and Game Play policy applies. BeGambleAware.org
No Nonsense Slot Reviews
If you’re new to Online Slot Master, you will have noticed that I don’t yet have thousands of reviews. That’s because my reviews are authentic and based on my own experience. If I haven’t played a slot for a while, it will take time to play it with my review head on so I can refresh my memory of all the good and bad points! I focus on creating content that’s actually useful rather than creating enticing reviews just for the sake of clicks.
My recent review of Lil’ Devil proves the point. It’s actually a really popular slot that gets a lot of love, but I was left quite underwhelmed! If you’re serious about researching slot reviews before you play, then I guarantee you’ve come to the right place for genuine information.
Best Casinos for Online Slots
The best online casinos will have something for everyone, no matter if you’re new to slots, or a veteran player. Each one of the featured casinos is fully licensed, and each is regulated by the UK Gambling Commission, so you can be sure you’re playing safely. I take safety and privacy very seriously, which is why I will never show links to any online casino that doesn’t have a robust responsible gambling policy. I have played at all the brands I feature, and there will be pros and cons to each of them depending on what you’re looking for. However, none of the featured casinos will compromise your safety, security and deposits. So take your pick and enjoy your experience!
Recommended Casinos

100% First Deposit Match up to £100 + 30 Bonus Spins on Reactoonz
T’s&C’s apply. New players 18+ only. Min deposit Ā£10. 100% up to £100Ā + 30 Bonus Spins on Reactoonz. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5Ā bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply.Ā BeGambleAware.org
First Deposit Match up to £100 +50 Free Spins on Big Bass Splash.
T&Cs apply. New players 18+ only. Opt-in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. BeGambleAware.org

Stake £10, Get 100 Free Spins on Selected Games
T&C’s apply. New customers only. Register with code GAMES100. Deposit and stake Ā£10 or more, within 7 days, on Slots at Betfred Games to receive 100 Free Spins on selected titles. Free Spins credited within 48 hours. Free Spins are valid for 7 days. E-Wallet & Card restrictions apply. SMS validation may be required. BeGambleAware.org
How I Create My Reviews
I’m putting a lot of effort into creating my slot reviews, but that means I get to spend a lot of time playing! However, I know that no matter which slot you play, your experience will be based largely on how much you win or lose. I have therefore decided to focus my reviews on the experience rather than being swayed by personal wins or losses. I’ve broken the review down into 4 distinct areas:
Theme
All online slots have a visual theme and whilst many are based on actual TV shows, or films, there are so many more that have an entirely original concept. The slot reviews look at the theme, graphics and animation to gain an overall sense of how visually entertaining the game is.
Soundtrack
A large part of your experience whilst playing a slot will be based on the incidental sounds for wins etc or the soundtrack that sits behind normal or bonus gameplay. The sounds you hear whilst playing are an integral part of the entertainment, so my online slot reviews look at whether they add to the overall experience and if that’s a positive thing.
Gameplay
Here I look at the overall gameplay of the slot. An online slot with high volatility is unlikely to produce wins as much as one with low volatility during the time you play. The question with any game though is whether the wins are sufficient enough to keep your attention and keep you entertained. That’s why my slot reviews look at the speed of play, and the slickness of the slot. I also take a look at some of the additional features to the slot and whether they improve the overall experience.
Entertainment Value
Here, I have combined all of the elements examined so far to reveal the overall entertainment value of the slot. This takes into account my personal experience and enjoyment regardless of wins or losses. Is the slot likely to leave you wanting more, or will you never return? You can find out what I thought without spending a penny.
The Overall Rating
Each of the examined elements is given a percentage score. The overall rating is simply an average of all the elements which should give you the heads up of what you can expect.
Slot Review Hall of Fame
Hall of Shame
How Do Online Slots Work?
Have you ever wondered how online slots work? Perhaps you think you know a way to beat them, or maybe you think they’re all rigged? Find out all the facts at our Online Slot FAQ HQ!