Best Online Casino Slots Review [ 2024 ] with 3 Brainy High Rollers

Slots admirers definitely need to get familiar with the interview I had with 3 highrollers.

Scroll down to see top online casinos to play the best online slots in 2024.

Read on to learn slot basics, discover the best and worst titles, and what features pay the most.

arnold aka blackArnold aka Black“Online slots are very addictive entertainments. Such gaming demands self-discipline.”

vip joeVIP Joe“I’ve been playing casino games for over 10 years! There are ways to take advantage of slots.”

us satoshiUS Satoshi “Slot Machines are the same lottery. You never know how your play ends.”

It can be tough to choose between hundreds of slot games – classic 3-reel and 5-reel video slot games. This’s true even if a player knows a plenty of popular titles. Did you know that each month companies like Microgaming or Netent produce 3-10 new products? Still, it’s next to impossible to test all your favourites.

How to choose? This means anything from reading dozens of slots reviews by players on forums or blogs to checking games yourself (in fun mode). It is productive but time-intensive. That’s why “expert reviews” are so popular. Up to now, 3 high rollers have tried out over 195 slot machines.

By reading the single review on 1Highrollercasino, I (Arivoli) offer you to save time. I have explored around 20 top pages covering online slots. The most interesting and relevant news on topic is covered. From mechanics, Wild and Scatter symbols, Return to Player (RTP) myths to popular and brand-new video slots at top online casinos with free spins promotions. Arnold aka Black, VIP Joe, US Satoshi are talking about everything below the list of the best casino sites with a wide selection of online slots, bonus spins on registration for new players to have a casino gaming experience to remember!

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1 What Are Best Online Slot Games in 2024?

Mega Moolah, Break Da Bank Again, Book of Dead, Book of Ra Deluxe, Immortal Romance, Jungle Jim, Avalon, Game of Thrones, Jurassic World™ and Lara Croft® Temples and Tombs™ or Hitman… I can go on and on with titles. However, as a high roller, I have specific needs, like being able to win $10K or up. Sometimes, I break my own rules and just play games that caught my attention. Being a fan of a particular series or films, shows, also leaves its stamp on my choice.

Best slots have the largest amount of positive feedback from players on the Internet. You might see the branded games in multiple top lists: Immortal Romance, 9 Pots of Gold, Viking Runecraft, Reel King Mega, Narcos, Twin Spin Deluxe, Pick ‘n’ Mix, the Eye of Ra, Aztec’s Treasure, Wheel of Fortune, Wizard of Oz, Mega Fortune, etc. They have a nice slots payout (return to player), selection of bonus features, like Free Spins or Multipliers.

The ones that you don’t regret spending your money or time on. For me, these are provably fair slot games or multilevel games like Avalon or Monty Python Spamalot, Thunderstruck II, or Street Fighter II: The World Warrior.

2 What Are New Slot Games You Have Tried Lately?

Yggdrasil’s Multify, where 5 chameleons try to catch as more fireflies as possible. The slot is packed with Dropdown Wins (aka Cascading Reels), Free Spins, Wilds, and the MultiMAX featuring 5 different multipliers. It’s worth trying.

A few days ago, I played Wild West Gold from Pragmatic Play. 40 payline machine is full of rogues, bandits, outlaws, random 5x Wild Multipliers on the reels. Potentially, a player can win up to 10,000X his bet. I had a pretty good session, for an hour of play, I made about 5,000 dollars.

It was Gods of Death, such latest releases like Vault of Anubis from Stakelogic, Greentube’s Ghostly Towers. I’ve discovered when looking through iGaming Intelligence website.

3 What Video Slot Features Do You Prioritize?

Having tried out Gonzo’s Quest (Netent), The Viking Runecraft (Play’N Go), Jammin Jars (Push Gaming), I find Cascading Reels feature to be very cool. It has become a very much in-demand recently. People like to see paid out winning symbols being replaced with new ones falling from above and thus helping you create more wins at a spin. It is like getting more out of a single bet made.

With so many Multipliers, Free Spins, Feature Modes, Wilds like Stacked, Shifting, Expanding, Transferring, Multiplier, and Sticky ones, Reels like Cascading, Tumbling, and Rolling, more Paylines, Ways to Win, Gamble Feature, etc., online slots become akin to video games. And it is getting harder and harder to make a choice. Thankfully, there are free online slots at licensed and regulated online casinos, which means you can see how each thing works and it will cost you zero.

I like it when wins are paid in different ways. I mean being able to get wins from left to right, and vice versa. So I like I prefer Megaways online slots with Cascading Reels like Medusa from NextGen or Fishin’ Frenzy, when a number of ways to win is different each spin, and alike icons form up a win combo if are on the adjacent reels. And it is good if there is a Multiplier Trail Feature. Thus, making a series of wins which are also multiplied by X times. It depends on a title. In Absolootly Mad (Mega Moolah), the 5th win in a row is multiplied by 15 times during free spins round.

4 How Do Online Slots Work?

Each machine is programmed to give random results of game symbols layout with the help of Pseudo-Random Number Generator or PRNG, which is an algorithm created with a lot of math skills to achieve the proper balance between randomness and actually paying out wins.

The main goal is to get alike icons lined up on the reels. Some of the combos award Free Spins, different Cash Bonuses, Multipliers to boost your win by 1 to thousands of times, etc. For that, you just need to make spins or simply make bets. It means to click on the button or activate ‘Auto Play’, and watch the reels spinning for 100-1,000 times nonstop. Pretty simple. And that’s what I like.

If talking about provably fair online slots, you get a sort of ‘bet id’ on each spin that you are able to check through third party verifiers. By now, there are few slots put on blockchain technology. That’s why the question ‘if a slot is rigged or not’ is always with me.

5 Winning in Slots Often Has to do with Game Hit Frequency?

Sure. There is a probability of each outcome, which is called Hit Frequency (HF). If it is high, then you are paid out often, if low – bigger wins are coming your way.

It has to be mentioned that slot HF info isn’t provided by all companies. When they do, you still get a very ballpark figure, based on the calculation of the highest and lower paying symbols altogether.

Netent slots developing company always shares such information with people. If i’m not mistaken, it’s true for Betsoft games.

6 How Does RTP Guarantee Game Payout?

Everyone knows RTP as an index for return to player, which is calculated on the probability and value of each outcome. The numbers range from 88% to 99%, depending on a slot and its features. But if you expect to get 92 or 99 cents from each dollar wagered, I’m sorry to disappoint you. These are very round guesses. You need like make a million or so spins for that to happen.

We know that to be sure, the slot isn’t rigged, it has to pay back 99% of money (or less) to its players. And it does ‘in a long run’. What I discovered years ago, it can take even trillions of spins to justify the numbers. So, get rid of the illusions to 100% win back a percentage of your deposits into a machine even after making a few thousands of spins. It doesn’t work like that. Online slots don’t have a memory. And they don’t know how much money you lose or win before.

Any casino house always gets its edge on its players, but the RTP of online slots is far better than it is across land-based casinos, where the payout varies between 88% and 96%.

7 What Are Laboratories or Agencies Certificates You Trust?

GLI – Aussie-based laboratory testing slots machines, RNG (Random Number Generator), and other products. They train their experts delivering a higher level of service and expertise in the field. It has international accreditation for compliance with standards for technical and security technology competence in the gaming if you wonder.

First, it is eCOGRA. I trust the staff working there. Some of them gained their knowledge and experience in auditing at Big 4 accounting firms that audit and consult the largest corporations in the USA.

Among eCOGRA, GLI, iTech Labs, BMM Testlabs, and TST (Technical Systems Testing), it is GLI or eCOGRA as they have gained trust across hundreds of national and local jurisdictions. They have the best mathematicians, different high-tech engineers.

8 Which Slot Developers Do You Recommend to Players?

First of all, these tried and experienced slot developers like Microgaming, Playtech, Netent, Betsoft, Red Tiger, IGT, Betsoft, or Play’n Go.

How do you find casinos with Microgaming, RTG, Netent or Playtech slot machines onboard? Check our recent reviews, which highlight the best sites: Microgaming casinos, Netent casinos, Playtech casinos, RTG casinos. For advice and more, be sure to scroll through the FAQ in the end of each review.

Microgaming and Netent, then go Thunderkick, IGT, and Big Time Gaming. However, there are so many companies out there. In the UK itself, I’ve counted over 100 different slot games suppliers.

For sure, it is Netent collection. Their Gonzo’s Quest, Dead or Alive 2, Guns N’ Roses are real hits. Players from the United States or Australia can’t access the content. In the case, I give preference to Rival, RTG. The companies have experience on the market and 100+ games which are also available in a mobile format on Android & iOS smartphone, tablet devices. From Realtime Gaming, I enjoy 777 Deluxe, Reels of Wealth, Caesar’s Empire, Dr Winmore.

9 Do You Like Classic Slots?

I haven’t played classic slots much. Luckily, there are many players out there who did and so I know a few Vegas, Fruit, Diamond or Retro themed machines like Wild Diamonds, Fruit Spin, Thunder Reels, Or Super Seven that I haven’t experienced myself. They are pretty simple, featuring 3 reels as usual, and some offering progressive jackpots along.

I like Fire joker from Play’n Go. I won $800 playing at $1 bet only. When getting 2 paylines with matching icons and no wins, you are awarded a Respin. Nice, isn’t it? Most of the entertainments offer comparatively high Multipliers (7X-800X), so I understand people looking for the simple and yet delightful fruit machines.

Joker Pro by Netent is my favorite classic slot. It has over 96% RTP, however, the bet ranges from 1 cent to a dollar only. If you don’t want to spend much while gambling, I recommend paying attention to the types of the slot game.

10 Are Strategies Useless for Slot Machines?

I try different schemes periodically, like maxing out paylines, hunt the biggest jackpots, change bets, try different slots, take part in loyalty programs, multi-level tournaments, which offer higher cash prizes and more slots play as compared to uni-level ones.

Yes. However, you can try to increase your chances to win big other ways, like:

  • learning probabilities of winning
  • using casino bonus money or spins
  • taking advantages of Rewarding Comps, and suchlike freebies
  • playing progressive slots
  • staying within your bankroll
  • trying one game on different casino sites
  • lowering coin values and increasing amount of paylines to the max
  • choosing the machine with a high ration (the max bet vs max jackpot)

I know there are some strategies used by players like “Martingale” or “Baby Steps”. But I would definitely advise checking slots with more winning ways. 243 win ways slot machines are my favorite.

11 Answer Burning Questions about Online Slots.

It’s safe to say that Arnold aka Black, VIP Joe, US Satoshi know a thing or two about online gaming. From the best features, worst games to entertainment advantages, the high rollers answer questions about that all.

What is the Worst Slot You’ve Tried?
Arnold aka Black
Joker Stacks by iSoftbet or Hold the Safe from Eyecon

Count Duckula by Blueprint Gaming

US Satoshi
Poker the Guy (Microgaming)

Free Cash or Free Spins Bonus?
Arnold aka Black
Free Cash


US Satoshi
Free Spins

What Is the Best Mobile Slots Casino?
Arnold aka Black
Vegas Paradise

Grand Mondial

US Satoshi

Expanding or Stacked Wilds?
Arnold aka Black


US Satoshi

150 (Deposit) Free Spins or $5 No Deposit?
Arnold aka Black
Free Spins

Free Spins

US Satoshi
$5 No Deposit

What are the Benefits of Playing Slot Games?
Arnold aka Black
Attractive Bonuses

Loyalty Points + Low or Zero Bonus Wagering

US Satoshi
Progressive Jackpot

12What Bet You Play with?

Most of the slots have a wide range of bets. The lowest stake starts at 10 cents, but you can change the coin value and a number of active lines to make it $100 or more. The top jackpots change accordingly. Most of the time, I play with $150-$200 per spin. Once I lost $25K. So, you should always think of the money you can afford to spend on the game. Also, I check not 1 but 3 top paying symbols if the difference between the first 3 highest jackpots isn’t big.

I often change my stakes within the range – $25-$125.

When I set low bets like 10 or 20 dollars, I win oftener, but the gains are tiny. That’s why, I bet $100 or more unless it is a progressive slot, where 25 cents is enough, as you set eyes on progressive prize not the top reward. This jackpot grows with every bet made in the slot by all players across dozens of casinos. While we know that every top jackpot is usually given for 5 Wilds collected.

13 What Are the Fastest and Safest Instant Payment Options To Use for Real Money Play?

Well, it depends on the country you live in and an online casino chosen. Visa and Mastercard are just fine.

Instant deposits (withdrawals) are pretty fast via Skrill, PayPal, Neteller payment methods. However, with the help of the UKGC (the Gambling Commission of Great Britain), the British have been recently deprived of payment options like Skrill or credit cards.

I know Paysafecard, Bank wire solutions are widely used. I play with BTC (Bitcoin). It is cheaper and faster, but people find it is complex.

14 Do You Play Free Slots?

There is such diversity… Before starting to play for money, I make 50-70 free spins in a fun mode. Or I spend casino money which I get as a part of a free spins’ promotion from an online casino site.

Demo Mode first! Aren’t we all doing that? Looking for online slots that are free. I explore the game paytable, rules, bet range, measure it up against the slot top jackpots, and so on this way. At casinos and sites where online slots reviews are posted, there is an option to make hundreds of spins for free, and nor download or registration is needed. We’re working on providing our readers the same opportunity because seeing is believing.

No. I receive lots of free spins and cash from casino sites daily, so I just go and use them. Usually, they promote new games or old hits like Mega Moolah.

15 How Often Do You Play Slots Online?

I play slots 3-4 times a week. One in three casino bonuses I receive includes free spins specifically linked to one or a few slots, just to ‘test the waters’ first.

Very often! Modern video slots are far from being a simple game of a chance where all you should do is to push a ‘Spin’ button. Game features and mechanics have become way more engaging. I can spend from 1 to 3 hours playing such games as Street Fighter II: The World Warrior, Wheel of Fortune, Book of Dead, Rainbow Riches Megaways, Mega Moolah or Starburst on a single day. I decreased the time to 1 hour per day as it has been recommended by the UKGC (United Kingdom Gambling Commission) amid the Covid-19 pandemic.

Few times a month or a year. I try not to miss a chance to test innovative features or technologies like VR games (Gonzo’s Quest in 2017) or Live slot games like Buffalo Blitz from Playtech. A few gamblers play the same machine in real-time and even share free spins, thus they are called “Community Spins”. However, it wasn’t as exciting as I expected.

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How much money can I win playing slots online?

Actually, some jackpots awarded can leave you speechless. $8m is how much one player took home in May, 2020, just spinning the world-breaker slot - Mega Moolah. While everything is possible, online casino slot winners typically report about getting paid somewhat between $100 and $10,000. It doesn’t mean you’ll win something in between, as it also depends on the bet made and the maximum prize offered of the chosen machine. When making slots overviews, we inform people about potential wins, and expenses.

How do I find free spins bonuses for Canadians?

Go straight to our site to get around 150-200 Free Spins for playing such slots as Mega Moolah, Atlantean Treasures: Mega Moolah, Lady of Fortune (exclusively for players from Canada at Casino Cruise), Immortal Creatures (at Yukon Gold Casino). New players receive the free spins only after making the initial deposit of about $10. If you’re still in doubt, there is a nice bonus (80 Free Spins) at Zodiac casino which is given for $1 only.

What are Slot Multipliers?

Multipliers are symbols that can multiply your win by 2, 5, or 10,000 times. It can be represented by special symbols in the game. Sometimes, they appear only during a bonus game only, like Free Spins. There is a Multiplier Trail Feature, where your gain are increased by up to 15 times if you manage to win 5 times in a row. Check Absolootly Mad Mega Moolah to see the effect with your own eyes.