Best Online Slots Sites 2025 in the US – Play for Real Money

The Best Online Slots - Our Recommended Selection

With so many out there, where do you start? Well, we recommend that you start with some of these. Filled with features and cool themes, they're great options for everyone.

1.- Sweet Bonanza

2.- Big Bass Bonanza

3.- Starburst

4.- Immortal Romance

5.- Book of Dead

1.- Sweet Bonanza

Sweet Bonanza is perfect for players who have a sweet tooth. This candy-themed slot was created by Pragmatic Play and comes with all sorts of features, including the tumble feature, where any symbols that create a winning combination are removed from the grid and replaced with new ones -meaning lots of chances to win on one single spin. With bright colors and big payout potential, this high-volatility slot is a tasty option for all types of players.

• RTP: 96.48%
• Volatility: High
• Maximum Win: 21,100x your stake
• Theme: Candy
• Where to Play: Grosvenor Casino

2.- Big Bass Bonanza

Next, we have another Pragmatic Play game, Big Bass Bonanza - but this time, it's a fishing-themed slot that's gained global popularity thanks to its fishy features and the chance to reel in some reely big wins. The Free Spins, combined with those wild multipliers, means seriously thrilling gameplay where you can net some serious wins.

• RTP: 96.71%
• Volatility: Medium
• Maximum Win: 2,100x your stake
• Theme: Fishing
• Where to Play: BetMGM

3.- Starburst

No list of top slots would be complete without one of the most iconic online slots of all time - Starburst. This game, by NetEnt, is a space-themed game filled with dazzling gems and simple gameplay - and with a low volatility, it's perfect for players who are looking for smaller, more frequent wins. With expanding wilds and big wins up for grabs, this will leave you starstruck!

• RTP: 96.09%
• Volatility: Low
• Maximum Win: 500x your stake
• Theme: Space
• Where to Play: DraftKings

4.- Immortal Romance

The spooky, vampire-themed slot, Immortal Romance, was created by Microgaming and has become a huge fan favorite thanks to its numerous features, including the Chamber of Spins bonus, which unlocks more and more bonuses and spins as you progress. With its gothic storytelling and colorful characters, you'll want to get your teeth into this one!

• RTP: 96.86%
• Volatility: High
• Maximum Win: 12,150x your stake
• Theme: Vampires
• Where to Play: Bet365

5.- Book of Dead

Last on our list, we have Book of Dead by Play'n GO, which is an Egyptian-themed slot - with Rich Wilde taking us on a wild ride. With a famously high volatility, the game has a free spins feature that comes with expanding symbols - giving you the chance to uncover massive treasures of up to 5,000x your stake if you land the right combination.

• RTP: 96.21%
• Volatility: High
• Maximum Win: 5,000x your stake
• Theme: Ancient Egypt, 
• Where to Play: BetMGM

Other Popular Slots 

There are lots of other great slots to try out - with all sorts of themes and features - here are some more that we think are well worth a look:

• Dancing Drums
• Wolf Gold
• Sugar Rush
• Reactoonz
• Gold Blitz

Highest RTP Slots

If you want to go for a game that offers a higher payout rate - then you might want to try out a high RTP slot like Blood Suckers, Medusa Megaways or Guns N' Roses.

But what does that mean? Well, the RTP is the return to the player, which is the amount the machine pays out on average over a large number of spins. So, if a slot claims to have an RTP of 96%, it means that, on average, for every $100 played on it, it pays out $96 in winnings. That being said, it is calculated over hundreds of thousands of spins… so it's not an exact science. However, mathematically, they are the slots that payout the most over time (read more about it here in our guide to RTP and Volatility)!

 So, bearing that in mind, let's take a look at some of our favorite high RTP online slots…

1.- Bloodsuckers

Bloodsuckers is a spine-tingly good vampire-themed slot by NetEnt that's earned a reputation for its impressively high RTP. The slot is packed with spooky graphics and villainous vampires - and its low volatility makes it perfect for players looking to get their teeth into consistent wins.

• RTP: 98%
• Volatility: Low
• Maximum Win: 1,014x your stake
• Theme: Vampires, Horror
• Where to Play: DraftKings

2.- Medusa Megaways

Medusa Megaways, developed by NextGen, stands out from the crowd, not just for its snakes, but for its Megaways mechanics - that give you up to 117,649 ways to win and, of course, that impresssssive RTP. The game's legendary theme - along with its plethora of bonus features like free spins and cascading reels, makes it a must-try if you're a fan of high RTP slots (and who isn't?).

• RTP: 97.63%
• Volatility: Medium to High
• Maximum Win: 50,000x your stake
• Theme: Greek mythology
• Where to Play: Draft Kings

3.- Guns N' Roses

Guns N' Roses, from the studios of NetEnt, is a music-themed slot that's all about the world-famous rock band. While the visuals are great, this one is all about the soundtrack - which features some of their greatest hits. The game's electric bonus features - including expanding wilds and a crowd-pleasing multiplier, make it a reel… crowd pleaser!

• RTP: 96.98%
• Volatility: Medium
• Maximum Win: 1,250x your stake
• Theme: Music
• Where to Play: Bet365

4.- Fruit Shop

Then, there's Fruit Shop, which is a bright and juicy slot by NetEnt that adds a bit of a modern twist to the beloved classic-style fruit machine. The game comes with a nice, high RTP - and its big paying free spins feature, so you can expect even more frequent wins. So, if you like simplicity - with some fruity action thrown in, this is one to get your juices (and those wins) flowing.

• RTP: 96.71%
• Volatility: Low
• Maximum Win: 2,000x your stake
• Theme: Classic Fruit
• Where to Play: BetMGM

5.-Jimi Hendrix

If you're a fan of music-themed slots, and you liked the Guns' N Roses one, we have another one to add to the list. Jimi Hendrix, as the name suggests, is a tribute to the world-renowned legendary guitarist. This game obviously comes with an immense soundtrack but some seriously impressive bonus features like re-spins and wild transformations - offering a seriously purple haze of wins.

• RTP: 96.90%
• Volatility: Medium
• Maximum Win: 80,000 coins
• Theme: Music
• Where to Play: DraftKings

6.- Other Slots with High RTPs

As well as those five slots that we already mentioned above, there are plenty of other slots that come with impressive RTPs that are well worth a look. Some that are worth mentioning include: 

• Mega Joker 99% RTP
• Jackpot 6000 98.9% RTP
• 1429 Uncharted Seas 98.6% RTP 

These games also come with serious winning potential, and you'll find them at lots of our top casinos.

However, before playing, remember that RTP percentages are only theoretical - and they are measured over hundreds of thousands of spins but, in the long run, they will improve your chances of walking away a winner.

Highest Volatility Slots

High volatility slots - also referred to as high variance slots, are those games where the wins may not come in thick and fast, but when they do hit, the rewards can be immense. These slots are perfect for those players who want to land those big wins and are willing to take the risk of having to go through longer losing streaks to get those massive potential payouts.

1.- Dead or Alive 2

Dead or Alive 2 is a Wild West-themed game that was developed by NetEnt - and is one of the highest volatility slots out there - not high, but extreme! Having earned a reputation for its huge win potential, this game can really dish out some seriously massive rewards, especially if you manage to trigger the free spins bonus round where you can land multipliers and sticky wilds - and seriously epic payouts.

• RTP: 96.82%
• Volatility: Extreme
• Maximum Win: Over 100,000x your stake
• Theme: Wild West
• Where to Play: Bet365

2.- Jammin Jars

Jammin' Jars from Push Gaming is another perfect example of a high volatility slot done well. Don't expect a standard game grid, as this is a massive cluster pays slot that is played on an 8×8 grid - meaning seriously big winning potential. With a buzzing Rainbow feature and Free Spins, those wins can get sky-high.

• RTP: 96.83%
• Volatility: High
• Maximum Win: 19,999x your stake
• Theme: Fruit/ Disco
• Where to Play: Grosvenor Casino

3.- Wild Joker Stacks

Next, we have Wild Joker Stacks by Boomerang Studios, which stands out from the rest thanks to its high volatility and its unfixed number of rows on the reels - up to 5x5. You can even customize your wild multiplier as well - so you can play your way. 

This is no traditional game - but it looks so familiar with its fruity theme, with 7s, bells and cherries spinning on those reels. With a diamond symbol awarding free spins, you can expect some sparkling action - and blinging wins.

• RTP: 95.60%
• Volatility: High
• Maximum Win: 288,200x your stake
• Theme: Fruit
• Where to Play: 888 Casino

4.- White Rabbit Megaways

This one's for anyone after that fairy-tale win. Developed by Big Time Gaming, White Rabbit Megaways is a super high volatility slot that's all about the famous children's book Alice in Wonderland. With up to 248,832 ways to win and the potential the game has for huge multipliers if you're lucky enough to trigger one of the bonus rounds, this game is one of the most rewarding high volatility slots. It really could offer you that happily ever after.

• RTP: 97.72%
• Volatility: High
• Maximum Win: 17,000x your stake
• Theme: Alice in Wonderland
• Where to Play: DraftKings

5.- Bonanza Megaways

Next, we have a big hit from the big-time developer, Big Time Gaming. Bonanza Megaways is another high-volatility game that is filled with features, such as cascading reels, and, as a Megaways game, there are up to 117,649 ways to win. The game has a mining theme that you'll definitely dig -  but it's the free spins round with unlimited multipliers that can lead to explosive wins.

• RTP: 96%
• Volatility: High
• Maximum Win: 26,000x your stake
• Theme: Mining
• Where to Play: Grosvenor Casino 

Other Slots with High Volatilities

The great news for fans of high volatility slots is that there are lots of other superb big-paying slots that are worth a look - such as Razor Shark by Push Gaming, Immortal Romance by Microgaming, Wanted Dead or a Wild by Hacksaw Gaming and Sugar Rush by Pragmatic Play. These games come with seriously massive payout potential… but they also come with the risk of having to wait a long time to land those wins. So, if you're a fan of big risks and even bigger rewards, these are well worth a look!

Highest Paying Slots

When it comes to playing casino games, especially slots, lots of people go for those that offer the highest payouts. These are the games that have just the right balance between offering enough smaller, frequent wins - but there's still the chance to win big. Here are our favourite slots that come with some seriously decent win potential.

1.- Mighty Black Knight

Mighty Black Knight is a slot created by Barcrest that takes us right into the world of knights, castles, and quests for hidden treasures. This is a high-paying slot that not only has a great RTP but is great for offering plenty of smaller wins, along with the potential for pretty decent payouts if you manage to trigger its free spins and wilds.

• RTP: 98.00%
• Volatility: Medium
• Maximum Win: 1,000x your stake
• Theme: Medieval
• Where to Play: Grosvenor Casino

2.- Alice Cooper and the Tome of Madness

For another ride on the dark side, check out Alice Cooper and the Tome of Madness, which was created by Play'n GO and combines the iconic rocker Alice Cooper's persona with a mystical and magical slot game. Its high RTP and fantastic features - including cluster pays and expanding wilds, make it great if you're after some seriously substantial returns.

• RTP: 96.2%
• Volatility: High
• Maximum Win: 3,000x your stake
• Theme: Rock / Magic
• Where to Play: BetMGM

3.- Gonzo's Quest Megaways

If you loved the original Gonzo's Quest - and you love lots of ways to win and seriously big payouts, then try out Gonzo's Quest Megaways by Red Tiger. This game adds a modern spin to the original by adding in the Megaways mechanics and a progressive multiplier if you manage to trigger the free spins. This slot can lead to seriously huge payouts, thanks to its high-paying potential.

• RTP: 96%
• Volatility: High
• Maximum Win: 21,000x your stake
• Theme: Adventure
• Where to Play: Grosvenor Casino

4.- Temple Tumble 2:Dream Drop

This dreamy slot from Relax Gaming brings you the perfect mix of the popular Megaways mechanics and the Dream Drop jackpot system. Because the game has a decent RTP and seriously decent bonus features, like cascading wins and expanding reels, it's one of the top-paying games and top-played games out there - and one of our absolute favourites!

• RTP: 94.8%
• Volatility: High
• Maximum Win: Jackpot Dream Drop (up to millions)
• Theme: Jungle Adventure
• Where to Play: BetMGM

5.- 3 Pot Riches Hold and Win

Then, we have 3 Pot Riches Hold and Win by iSoftBet, which is an action-packed and high-paying slot that has the popular, traditional Irish theme. However, it's the Hold and Win feature, combined with its bonus round, that gives you the chance to unlock those massive prizes, including huge jackpots.

• RTP: 95.76%
• Volatility: Medium
• Maximum Win: 5,000x your stake
• Theme: Irish luck
• Where to Play: Bet365

Other Slots with High Payments

As well as these games, there are plenty of other slots that are known for high payouts. Obviously, there are games like Mega Moolah by Microgaming and Divine Fortune by NetEnt that are famous for their life-changing progressive jackpots. These slots may not always necessarily have the highest RTPs, but the chance to win millions definitely makes them a great option. Then there are regular games like Ultimate Fire Link Olvera Street, Cash Eruption and Rich Little Piggies, which have a medium to high volatility - but serious big maximum payouts.

If you're looking for the highest-paying slot - don't just look at the RTP but also check its volatility, bonus features, and its maximum win potential - as it's the combination of all of these that leads to high payout potential.

Best Progressive Slots for Real Money

What is a progressive slot? Well, progressive jackpot slots come with jackpots that get bigger and bigger… often reaching millions - and are perfect for anyone looking for that life-changing moment. Here are the very best progressive slots out there right now.

1.- Mega Moolah

Mega Moolah by Microgaming has to be one of the most famous progressive jackpot slots in the world - sometimes called the "Millionaire Maker." This is a safari-themed game that comes with four different jackpots, culminating in the elusive Mega Jackpot, which can break records.

• RTP: 88.12%
• Volatility: Medium
• Maximum Win: Progressive Jackpot (up to millions)
• Theme: Safari
• Where to Play: Bet365

2.- Age of the Gods: God of Storms

Part of the ever-popular Age of the Gods series by Playtech, this game gives you the chance to win one of the four different progressive jackpots. The game is all about ancient mythology and comes with all sorts of features like wilds and respins - that give you the chance to hit those legendary wins.

• RTP: 96.14%
• Volatility: Medium
• Maximum Win: Progressive Jackpot
• Theme: Greek mythology
• Where to Play: Grosvenor Casino   

3.- Dream Drop Diamonds

Dream Drop by Relax Gaming takes us into a world full of wealth and, of course, diamonds, combining some real action with the renowned Dream Drop progressive jackpot feature. Packed with cascading wins, free spins, and multipliers, not only is it great to play, but it gives you that chance to hit a huge jackpot.

• RTP: 93.89%
• Volatility: High
• Maximum Win: Dream Drop Jackpot
• Theme: Luxury/ Money
• Where to Play: BetMGM

4.- Mega Fortune

NetEnt's Mega Fortune is another legendary progressive slot, that's all about luxury, money… and the potential for seriously big wins - worth millions. The game comes with three progressive jackpots and bonus rounds which is where you get the chance to land those life-changing wins.

• RTP: 96.4%
• Volatility: Low
• Maximum Win: Progressive Jackpot (up to millions)
• Theme: Luxury, wealth
• Where to Play: 888 Casino

5.- Divine Fortune

Divine Fortune by NetEnt is another progressive slot that's a fan favorite -  thanks to its Greek mythology theme and massive jackpots. The game is filled with expanding wilds, free spins, and, of course, the jackpot bonus round, which can pay out one of the three progressive jackpots.

• RTP: 96.6%
• Volatility: Medium
• Maximum Win: Progressive Jackpot
• Theme: Greek mythology
• Where to Play: Bet365

Best Top Bonus Round Slots

Then we have to think about the games with the best bonus rounds - that all add an extra layer of adventure to the game - and even bigger payouts. Here are some of the best slots with seriously great bonus rounds.

1.- Big Bass Bonanza

Big Bass Bonanza by Pragmatic Play - just like Big Bass Splash, is a top fishing slot that comes with an excellent free spins bonus round where you try to reel in some huge catches. The game's bonus feature is filled with multipliers and cash prizes, making it a great way to try and net those extra wins.

• RTP: 96.71%
• Volatility: High
• Maximum Win: 2,100x your stake
• Theme: Fishing
• Where to Play: BetMGM

2.- Age of the Gods

All of the games in the Age of the Gods series by Playtech come with seriously epic bonus rounds, but the original game stands out. It has a Pantheon of Power bonus round that can award massive multipliers - and the chance to trigger one of the four progressive jackpots adds even more action.

• RTP: 95.02%
• Volatility: Medium
• Maximum Win: Progressive Jackpot
• Theme: Greek mythology
• Where to Play: Grosvenor Casino

3.- Starburst

Starburst by NetEnt is a legendary game famed for its simplicity and payout potential. While it doesn't actually feature a bonus round as we know it, the game has a famous Starburst Expanding Wild that gives you the chance to win big by expanding over reels and triggering respins for even more winning opportunities.

• RTP: 96.1%
• Volatility: Low
• Maximum Win: 500x your stake
• Theme: Space, gems
• Where to Play: Bet365

4.- Bonanza

Bonanza by Big Time Gaming is one of the most popular Megaways slots - and comes with 117,649 ways to win. But it's the bonus rounds we love, with free spins and unlimited multipliers, making it one of our favorite slots for big-win bonuses.

• RTP: 96%
• Volatility: High
• Maximum Win: 12,000x your stake
• Theme: Mining
• Where to Play: Bet365

5.- Sugar Rush

Finally, we have Pragmatic Play's candy-themed slot game that comes with impressive bonus features like cascading reels and its free spins bonus round. You can try for the biggest payouts during the bonus round, where massive multipliers can really boost those wins.

• RTP: 96.5%
• Volatility: High
• Maximum Win: 5,000x your stake
• Theme: Candy
• Where to Play: Sugar Rush

There are plenty more to choose from - IGT’s Da Vinci Diamonds, 9 Masks of Fire, Almighty Buffalo and Hypernova Megaways, which all have excellent bonus gaming action.

Review Process: How We Choose the Best Slots

There are lots of different types of slots - but how do we actually pick the best? There are so many to choose from! Well, here are the main factors we look at:

1. RTP (Return to Player): RTP is one of the first things we look at. The higher the RTP, the more it pays out in the long-term. We prefer games that have RTPs above 95% (although sometimes progressive jackpot slots tend to be lower).
2. Volatility: We also look at the volatility of the slot, which is basically the risk versus the size of the potential payout. High-volatility games come with big payouts but less frequent wins, while low-volatility games give you smaller but more frequent wins.
3. Bonus Features: Slots with great bonus rounds - like free spins and other great features are more immersive and entertaining. The best games come with innovative and big-paying bonus features.
4. Fun Themes and Great Graphics: It should look good and have a fun and enjoyable theme. All of our top recommended slots have the highest-quality graphics, superb animations, and sound effects that take you right into the heart of the game.
5. Excellent Maximum Win Potential: The best slots give you the chance to win seriously big payouts. We see what the maximum payout potential is to make sure you have the opportunity to hit those big wins.
6. A Decent Software Provider: We look for slots that are designed by excellent software developers - as these are guaranteed to be reliable, fair… and fun. We look for titles from industry leaders such as Microgaming, NetEnt, and Playtech, etc.
7. Compatible with Mobile: Because lots of players prefer playing on the go, we make sure that the slots we recommend are fully optimized for mobile - so you can have the ultimate gaming experience anytime, anywhere.

Sign-Up Steps to Play Slots in an Online Casino

Thinking of getting started on your slot journey? Then it couldn't be easier. Here's how you can sign up and start playing:

1. Choose the Right Casino for You: Pick one of our recommended real money casinos - all of which are fully licensed and secure, and offer a huge selection of slots, bonuses and secure payment methods.
2. Sign Up for a New Account: Click on our link to the casino website and click on the "Sign Up" button. You'll then need to enter your personal information as requested.
3. Verify Your Identity: You'll then likely need to verify your identity (which will need to be done before you withdraw). You'll probably be asked to upload a copy of your ID - such as your passport and/or a recent utility bill.
4. Make Your First Deposit: Once you've set up your account, open up the cashier section and decide what payment method you want to use. Follow the steps and deposit money into your account so you can start playing for real money.
5. Claim Your Welcome Bonus: You can then claim the welcome bonus - so make sure you make a qualifying deposit (based on the bonus terms and conditions) and follow the necessary steps to claim your bonus.
6. Choose Your Slot and Start Playing: You can then look through all the different slots on offer, pick the one you like the look of and start playing - and trying for those real money wins!

Real Money vs Free Slots

In most of our recommended casinos, you have a few different ways to play - for real money (and real wins), play free slots with bonus and free spins or play for fun in demo mode. Here are the pros and cons to both…

Real Money Slots vs. Free Slots Pros

Real Money Slots vs. Free Slots Cons

Online Slots Software Providers

As we mentioned above, we only recommend slot games that come from the very best slots providers in the industry. With that being said, here are some of the very best.

1.- NetEnt

NetEnt is one of the leading names in the online slots industry - and has become renowned for its innovative games, world-class graphics and excellent features. Some of their most popular games include Starburst, Gonzo's Quest, and Divine Fortune. What's more, tier games are perfectly optimized for desktop and mobile, making them great for everyone.

2.- Konami

Konami first became famous for its land-based slot machines, but it has managed to successfully transition to the world of online slots. They've brought us games like China Shores and Lotus Land, that come with all the traditional slot mechanics but have a modern twist - and some pretty high payouts.

3.- Evolution

Although Evolution has earned a name in the live dealer games industry, they've recently expanded their reach into the world of online slots after having acquired NetEnt and Red Tiger Gaming. Evolution is all about innovation, so you can expect stunning visuals and incredible gameplay - and some of their most popular titles include Piggy Riches Megaways and Dragon's Fire Megaways.

4.- Playtech

Playtech is one of the biggest game providers in the online gaming world - with a massive selection of slots to its name. Some of their most well-known games include the Age of the Gods series, Buffalo Blitz and Gladiator. They also do some of the best branded slots in the business.

5.- Microgaming

Microgaming is another huge name in the industry, probably best known for its record-breaking progressive jackpot game, Mega Moolah. However, their games come in all different shapes and sizes, from the classic fruity slots to more updated video slots filled with features.

Other Providers

There are so many out there - all of a high caliber. Some of the others to look for include Pragmatic Play - with its famous Gates of Olympus slot, Big Time Gaming, IGT - famed for games like Fortune Coin and Double Diamond, and Yggdrasil - all known for creating incredible slots with great features, high RTPs, and seriously great win potential.

Strategies: How to Play Online Slots

Although online slots are games of chance - and it's all about luck, there are a few strategies and tips that you can use to give yourself the best possible experience - and even potentially maximize your chances of winning.

1. Get Used to Slot Games: Before starting, make sure you know how to play slot machines, understand how they work and what the symbols and features mean.
2. Know a Game's RTP and Volatility: Before playing any game, see what the slot's RTP and volatility is. Go for a game with a high RTP as this will give you better long-term payout potential.
3. Set Yourself a Budget: Make sure you set a budget before playing - and stick to it. Slot games can be really fast-paced, and it's easy to keep pressing spin without thinking about it - so you need to avoid overspending, never chase your losses and know when it's time to stop.
4. Use Bonuses and Free Spins Wisely: Take advantage of any good casino bonus you come across, such as welcome bonuses, free spins, no deposit bonus offers, deposit matches, etc. If they come with reasonable terms, they can be a great way to boost your bankroll and give you more chances to play without having to risk too much of your own money.
5. Be Careful With Progressive Slots: Progressive slots can pay out huge wins, but they normally have lower RTPs and higher volatility - so be prepared for reasonably long stretches without wins and stick to your budget.
6. Try Free Play: Some of the best online casinos offer free play or demo modes on the most popular slot games. It's a good idea to use it to get a feel for the game and its features and understand the slot machines symbols and values before risking your own money.
7. Choose Your Bet Size Carefully: Choose a bet size that's based on your bankroll. If you play with low stakes, you can play for longer and give yourself more chances of winning. However, higher bets give you a better chance of hitting bigger payouts, especially progressive jackpot games.
8. Know When to Cut and Run: If you get a big win - or hit your win target, cash out! Try not to feed it all back into the machine again.

For more top tips - read our guide on how to win at slot games!

So, hopefully, you know everything you need to know about online slots - where to play them, how to play them - and how to give yourself the very best chance!

Good luck, happy spinning and have fun!