Best Online Slots 2024 - Play Real Money Slots Games

To get started with finding the best slot sites for winning where you live, simply select your state from our drop-down list below to find the best casino bonuses available in your state. Our top online slot sites were ranked based on player experience, the overall selection of slots, customer service, banking options, and bonuses/promotions.

Just getting started with online slots and wondering which one to choose? Check out our top three picks for slot games that are perfect for players of all levels:

• Starburst: This five-reel, three-row and 10-payline online casino slot from NetEnt is one of the most popular slots of all time, with bonus features including expanding wilds and respins. Jump into the fast-paced action and enjoy the well-designed gems, each with their own color and shape.
• Big Bass Bonanza Megaways: Reel Kingdom and Pragmatic Play title offering play across six reels with a betting range of $0.20 up to $100 per spin. The megaways mechanic provides up to 46,565 ways to win on every active spin, with bonus rounds like free spins exciting Dynamite and Bazooka features.
• Gonzo’s Quest: Join Spanish explorer Gonzo as you search for the lost golden city of El Dorado and the treasures that lie within it. This game is played on a 5x3 grid with 20 paylines, incredible graphics, smooth animations and exciting features.
• White Rabbit Megaways: With the Megaways-feature that gives you the chance to play with 117 649 play lines, this slot offers more than a fun theme based on a childhood favorite. It also has an RTP over 97% which is higher than most games out there.

Everyone's favorites are subjective - that is the nature of opinions after all. However, if you are playing online slots for real money, it can be a good strategy to choose slots based on their payout percentage. We've listed some of the slots with the highest RTP (return to player) rates online. Of course, the numbers don't mean guaranteed wins, but these online slot games are the best payers on average.

Similarly, if you are curious about the operators as a whole, check out our review of the highest payout online casinos in the US.

Decent online slot casinos will offer a wide range of slot types. The hardest choice you may have is selecting the best slot machines to play. Here are some of the slot game varieties you should find at the best online slot sites in the US, plus the top recommended games for each category.

3-Reel Slots

If you appreciate classics, 3-reel games have been around since the earliest days of slot machines. The beauty of 3-reel games is that they have simple payline structures. On the other hand, they also have a low range of stakes and minimal bonus features. If you're looking for more complex gameplay, this is not the type of game that would appeal to you, but if you enjoy simplicity and a nod to nostalgia, then the 3-reel games below are worth a look.

5-Reel Slots

5-reel slots allow for more paylines and more action. Choose a range of coins and trigger wilds, scatters and big bonus features when you play. If you'd like to try a game with a high RTP, click on Monopoly Big Event below. It has an impressive 99% RTP!

Classic Slots/Fruit Machine

Classic slots will be familiar to anyone who's played in Las Vegas. These online slots games can come in 3-reel, 5-reel or even 6-reel formats and feature classic fruit symbols such as cherries, melons and plums. They don't necessarily need fruit to have the retro vibe though. Check out Buffalo if you want to try our all-time favorite slot machine online!

Video Slots

Most online slots are video slots. They usually offer superb sounds and graphics, a range of themes, interactive bonus levels and other features. Reel numbers and paylines vary, and some of the best video slots include innovative mechanics and features like Megaways, Cluster Pays and Sticky Wilds.

Progressive Slots

Progressive jackpot slots give you the opportunity to win a huge sum of cash. Unlike fixed jackpots, progressives are linked across networks, and a portion of every bet made on a progressive slot goes toward a linked jackpot. Some progressive jackpots, like Mega Moolah, start at $1 million, and grow from there until the pot is won. Depending on the game, the jackpot can usually be triggered at random or by playing special bonus games.

Slot Comparison Tool

Do you have a few favorites that you would like to compare? Click below to use our handy slot comparison tool to check out all the main features of each, including bonus features, their RTP rates and maximum jackpots. 

We only recommend the best online slot sites that pass a strict range of criteria. We're not just looking for good slots; we want to see fully licensed gambling platforms with top security, lots of bonuses and helpful customer support. Check out the list at the top of the page for the current best slot sites plus their latest promo offer.

Additionally, here are some of the characteristics of good slot sites:

Slot Site Bonuses

Top slot sites will offer new sign-ups a welcome bonus when they make their first deposit (or series of deposits), and they will also offer the opportunity to get bonuses on a weekly or seasonal basis, or to earn loyalty points when they play online slots.

Slot bonuses can include free spins on the latest games or a deposit match bonus to give you extra money to play the casino’s games. Some offers include a combination of both, so shopping around different casino bonus offers is key.

Security

Checking for good security protocols is top of our reviewers' list here at Casinos.com. We only recommend slot casinos that have SSL (Secure Socket Layers) encryption that protects your bankroll and personal data. Additionally, the online slot casinos that offer these games are all licensed and regulated by the states in which they are located.

Slot Machine Variety

It goes without saying that to be considered a top slot site, the online casino must have an excellent selection of slot games. Good gaming sites will offer hundreds, if not thousands, of the latest online slots. You should be able to choose from old-school 3-reel games or the newest bonus games with big jackpots and other features. Casinos should also have partnerships with a range of major slot software providers.

Free Slots

The beauty of online slot sites is that you can often try out games for free before you pay. Select the demo play option, if available, and gamble with play credits on a range of exciting free slot games. The gameplay will be exactly the same as in the real money versions, although the win rates will differ.

Slot Apps

All good online slot sites will offer a compatible mobile version of their games. The best slot apps are specially adapted for your device, so you can simply log in via a smartphone or tablet to play. The mobile-optimized slots adapt to fit smaller screens, and functions like spin and coin size are accessed via touch buttons.

As long as you have a mobile device and an internet connection, you can play your favorite online slot games from anywhere and at any time. All the slot sites we recommend are built on HTML5 technology, meaning you can access them from a mobile browser, although US bettors can enjoy all the best online slots (plus some exclusive mobile-only bonuses) when gambling through a mobile app.

Quality Game Providers

There are dozens of reputable slot providers offering games in the US right now. The best online slot sites will have a good selection of leading manufacturers who are properly licensed and audited. They offer the latest games you won't find in your local brick-and-mortar casino.

Payment Options

How good is the range of payment options? Are US bank and credit cards standard and what is the success rate? Does the casino offer quick, safe and simple payment types that don’t expect you to give your banking info to the casino?

If you’re planning to play slots online, funding your account should be easy and convenient, through a payment method you prefer. We test every site to check for payment method availability, withdrawal times, and whether there are any fees.

When you play online slots with real money, you’ll always have the chance to earn extra cash. Casinos are always keen to keep you playing at their sites, and they achieve that through various bonuses and promotions. Many people are looking for specific bonuses for online slots. You'll be pleased to know that these slot promotions are readily available at several of our recommended sites! Other exciting promos that let you play slots for real money include:

Free Spins Welcome Bonus

The most common bonus type for slots is online casino free spins bonuses, which activates a number of spins in one or several selected online slots. Some casinos give you free spins upon registration, allowing you to play online slots for real money with no deposit. Others offer free spins for a deposit, giving the player additional slot spins on top of what the deposited amount would give.

Quick Tip: While bonuses that grant you extra slot spins are great, this kind of bonus ties you to the selected game titles. If you instead utilize a deposit bonus that matches your deposit amount, you can often double your player budget and play whichever slots you wish! – Just make sure to check the terms & conditions for which games that don’t contribute to potential wagering requirements. 

Reload Bonus

You can also claim a reload bonus as a regular online slot game player. It’s a good way to earn free money after your welcome bonus has expired. Typically, you will be offered a reload of 25-50% of your deposit.

To claim a reload bonus, make another deposit and opt in to the promotion. Play your favorite online slots and clear the bonus funds, remembering to meet the wagering requirement.

Keep in mind, always view the terms and conditions related to any bonus you are considering. This will help you to understand what you will need to do to maximize your player experience.

Quick Tip: Be on the lookout for large bonuses with low playthrough requirements.

Slots Tournaments & Loyalty programs

Some casinos offer slot tournaments and prize giveaways. Play a number of spins within the allotted time period. The highest winners will climb the leaderboard and claim a share of a prize pool. The same kind of perks come with climbing to higher levels of a loyalty program.

The beauty of online slots is that you can spin those reels whenever, and wherever, you like. You don't need to travel hundreds of miles to Las Vegas or your nearest casino. If you're in one of the states where online casinos are legal, just load up your PC or casino app, log on, and start spinning in minutes.

So, why choose online casino slots over a land-based one? Game variety is the biggest plus. Unlike land-based casinos with their space constraints, online casinos can offer thousands of slot games. And the best part? You can easily hop between different online casinos in a snap. If you're living miles away from the nearest casino, your options might be pretty limited. Plus, online slots tend to have higher payout rates, which explains why they're such a hit.

Many online gamblers will be on a budget too. Top slot sites will let you play games for as little as $0.01 a spin. Those kinds of stakes aren't always available in a land-based casino. Of course, many online slot sites cater to big spenders too, with bets going up to $500 or even $1,000 a spin – some even reach up to $5,000!

Let's talk about accessibility. When it comes to casino games, slots are as newbie-friendly as it gets, thanks to:

• Low minimum betting limits.
• Large jackpots topping $1 million.
• Extensive range of options to suit all tastes and moods.
• Interactive mini games and bonuses.
• Multiple ways to win and easy cash out procedures.
• Auto-play features and in-game help.

Free slots are a great way to play your favorite slots titles online and hone your skills without having to risk any of your own money - but doing so also means you won't be able to win any cash. Here are the main pros and cons for both:

There are a number of things you can do as a player to put yourself in a better position to win when playing online slots, despite the fact that the games themselves rely completely on chance.

• Pick games with the highest RTP: Every slot game has a return to player percentage (RTP) built into the gameplay which shows the average payout. The higher the RTP the better the long-term payouts and better your chance of winning.
• Choose games you enjoy: Playing slots you like and won’t get bored of will help your concentration so pick a game with an interesting theme or characters as well as strong bonus features.
• Test the volatility with demo play: Slots with low volatility mean they don’t pay out as frequently which could decimate your bankroll before you land a win, so test out games before you stake with real money by using demo play.
• Increase your stakes on progressive jackpots: Progressives can award massive payouts at random or through special bonus games and tend to be geared towards those who stake the most so try increasing your coin size when playing them.
• Claim your free spins and bonuses: Make sure to maximize any free spins and bonuses available when you sign up to an online casino for the first time.

Variance and Volatility

Variance, or volatility, is the regularity with which a slot pays out. Volatile online slots pay out big prizes but they are infrequent. Low-volatility slots pay small cash prizes more often. You can usually work out the variance after a period of play. If you have a small budget, and would like to stretch your play time, low volatility slots may be the best option. If you have a bigger bankroll, and you're willing to risk more funds for a longer period to try to win a bigger prize, then choose high volatility slots. 

Our recommended slot sites ensure a straightforward sign-up process so your casino journey will be smooth and fun from the get-go. After shopping around our top-rated sites and finding a casino that piques your interest, you’ll need to create an account with your chosen site. 

Most slot sites will offer you a casino welcome bonus when you join, so choose a site that offers a slots bonus that appeals to you. Use our experts’ step-by-step guide through the whole process to give you a head start: 

1. Create an account with a username and password.
2. Provide your personal information including email, phone, address, etc.
3. Make a first deposit; you may have to provide additional personal documentation.
4. Claim any welcome bonuses.
5. Start playing!

Every good online casino will have dozens of video slots available to play for free as well as real money slots. Most casinos split their games by type, and great slot sites will have an entire section (or more than one) dedicated to slot games. The best slot sites will split these games by categories, and let you search for your favorite game or add selected games to a Favorites list.

In the early days of online casinos, you would need to download casino software onto your PC to play, but the technology has advanced so much you can access most sites directly through your browser, whether you play on mobile or desktop devices. As long as you have a secure internet connection and funds in your account, you are ready to play!

Put your competitive streak to good use by getting involved in slot tournaments. Available at some of the top US slot sites, these tournaments involve competing against other slot players in a race to first place. The winner is the player who scores the biggest wins throughout the tournament. 

There are all manners of slot tournaments to explore at various operators. Check out Caesars Palace Online Casino in New Jersey and BetMGM NJ Online Casino for some of the best variety. If you’re a high-rolling bettor, slot tournaments have the potential to reward you with extra prizes alongside your regular gameplay.

The best online slot sites will make it easy for you to deposit funds into your account, so you can hit the reels right away. Look for sites that offer a variety of payment options, and if you have a preferred payment method, you can browse for it on the Casinos.com slot sites list. Most sites will offer debit and credit cards, but the better sites will give you a range of other options too.

No matter which option you choose, your payments are fully encrypted and safe from third-party interception.

Play+

Exclusive to casinos in the US, Play+ is a cashless prepaid card that offers one of the swiftest transaction speeds on the market. You can find branded Play+ cards at sites like Caesars, BetMGM, and BetRivers Casino in PA.

Credit card

Credit and debit cards are widely available at US casinos. You can use a range of credit cards to make deposits and withdrawals, including Visa, Mastercard, and Discover.

PayPal

E-wallets are increasingly becoming the preferred way to pay, and PayPal is perhaps the most popular of all. Players with registered PayPal accounts can take advantage of one-tap payments and pre-saved banking details for faster transactions at PayPal casinos.

Skrill

Another popular e-wallet, Skrill, operates similarly to Neteller. Make sure to check the T&Cs of any bonus you want to claim, as casinos will often exclude Skrill payments.

ACH

Otherwise known as ‘direct payments,’ ACH is an online banking option that lets you transfer funds from one account to another. Due to the high security of ACH transfers, withdrawals can take longer than other payment methods at ACH casinos.

There are dozens of online slots providers currently available in the US. Some of the larger developers now have licenses specific to regulated states, so they can supply online casinos in New Jersey, for example. Each developer offers its own unique game styles and bonus features. Some developers also offer a range of big-money progressive jackpots. These are linked across all participating online casinos in the US.

Aristocrat is one of Australia's oldest and best-known slots manufacturers. As well as producing most of Australia's land-based slot machines for casinos and clubs Down Under, Aristocrat also supplies its most popular games to the Las Vegas market. You can now play hundreds of top Aristocrat slots online and on mobile.

NextGen is a recognized brand in the online slots industry and forms part of the Canadian firm, NYX. NextGen first supplied legal online casino games such as Doctor Love and Mad Mad Monkey in New Jersey back in 2017.

Microgaming was one of the first software developers to create games for the emerging online casino market over two decades ago. In 2022, Microgaming was bought by Games Global so its extensive portfolio of popular video slot games, Blockbuster slots, and progressive slots like Mega Moolah, is now available under the Games Global brand.

One glance at an online casino’s slots library will tell you that IGT is one of the most iconic developers around. Founded in the early 1990s, IGT is responsible for numerous classic slots, including Da Vinci Diamonds, Golden Goddess, and Cleopatra.

With over 70 years of industry experience, Light & Wonder, which was formerly named Scientific Games, ranks very highly with US bettors. Switching its attention from physical pinball slots to online gaming, Light & Wonder and its various subsidiaries (including Bally, WMS, and Barcrest) dominate a massive share of the iGaming market.

This Swedish provider is planted firmly within the upper echelons of slot development. Famous for its six- and seven-figure progressive jackpots, you’ll see NetEnt slots like Divine Fortune and Starburst at almost every online casino.

Online slots have a wide variety of terms that might seem confusing if you've just started your casino journey. Here's a handy breakdown of the most common slot phrases:

Here are some savvy online slots strategy tips for you to follow when playing your favorite games:

• Opt for smaller jackpots: It may be enticing to go for games with big progressive prizes but your chances of winnings are often far higher at regular slot games.
• Give the classics a go: Simpler slots usually have higher payout percentages and can be more rewarding than new and exciting video titles.
• Stick to safe sites: Make sure you only ever play for real money on reputable and trustworthy casinos as the last thing you want is to be stuck trying to withdraw your winnings from a dodgy site.
• Look out for bonus rounds: Stay on the lookout for enticing bonus rounds, welcome bonuses and ongoing promotions that can keep you rewarded for playing slots online. 

We have unearthed the very best online slot sites with the best selection of slot games and fantastic bonuses and promotions for you. Whether you're looking for a top regulated online casino in New Jersey, Pennsylvania or any other state with legal online casino gaming, we have it covered. At Casinos.com, you can use our comprehensive list of slot machine sites to get to the best places fast.

It’s tough to know what to believe when you are on the internet trying to do your own research. That’s why we do the heavy lifting for you, and you can trust our process to find you the best legal and regulated online slot casinos in the US. Sign up for free, claim a bonus and start your US slots journey off the right way.