Best Online Slots & Slot Sites in the US for September 2024
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The best online slot games should provide an interactive user experience and fantastic customer service. Our experts have researched and created a complete guide to online slot sites, including real-money online casinos. We will guide you through the best welcome bonuses, promotions, and payout options to help you pick the best slot. We recommend only high-quality, legal online casino sites to ensure you can start playing confidently.
Best Available Online Slots
Here is a of the best online slot games:
Gonzo’s Quest
Cleopatra
Starburst
Bonanza Megaways
Rise of Olympus
Divine Fortune
88 Fortunes Megaways
Rich Wilde and the Book of Dead
Our experts reviewed each online slot game average Return to Player (RTPs), telling players the average return they will receive. For example, Gonzo’s Quest on our list has an RTP of 95.97%, the average player should received close to $96 back for every $100 played. We also reviewed their rewards, slot available and wagering requirements.
Best Online Slots Reviewed
Let’s explore the gaming mechanics of our recommended best online casino slots. This detailed review will give you an idea as to why each slot game stands out, as well as a heads up to the best RTP slots. These online slot games are not only the best but also the most popular:
Gonzo’s Quest
Created by NetEnt, Gonzo’s Quest is perfect for beginners. The game features a straightforward 5-reel and 20-payline setup. With some luck, you can win up to 35,000x using the slot’s multiplier feature.
Cleopatra
This Egyptian-themed slot by IGT is famous for its captivating graphics featuring the Nile backdrop. This slot is available in different versions, so you can select the game based on the RTP, bonus features and payouts.
Starburst
This NetEnt slot features a 5-reel, 10-payline structure with both-way win capabilities. With maximum winnings of 500x your bet, low volatility for frequent wins, and a 96.09% RTP, Starburst’s vibrant graphics and simple gameplay have made it a favorite among players.
Bonanza Megaways
This 6-reel online slot by Big Time Gaming offers an impressive 117,649 ways to win and an average RTP of 96%. With its mining theme, this game promises an adventurous experience, allowing you to maximize your stake up to 26,000x.
Rise of Olympus
You’ll love to play Rise of Olympus for its cascading reels and cluster payout mechanics. Play’n GO developed this Ancient Greek mythology slot with a 5-reel, 20-payline format.
Divine Fortune
NetEnt again impressed us with this mythical video slot, Divine Fortune. This game features a 5-reel, 3-row, and 20-payline setup with an RTP of 96.59%. Set in the realm of ancient Greek mythology, the slot offers stunning visuals and an immersive soundtrack.
88 Fortunes Megaways
The classic Megaways slot deserves to be on your bucket list due to its 117,649 ways to win. You can maximize your wins up to 26,000x during the game. A 96% RTP is ideal for low-stakes and novice gamblers.
Rich Wilde and the Book of Dead
Play’n GO’s iconic slot game is available in numerous variants, including Rise of Dead, Doom of Dead, Amulet of Dead, Legacy of Dead and Scroll of Dead. All these slot titles have engaging narratives, graphics and visuals. Moreover, these mobile-optimized slots run smoothly on iOS and Android phones.
Top Online Slot Sites
BetMGM: Top-rated slot casino
Caesars Palace Online Casino: Top Welcome Bonus
FanDuel: Best user interface for mobile slot gaming
DraftKings: Best rewards program
BetRivers: Best for bonus spins
bet365: Top video slots across online slot sites
Best Online Slots Sites Ranked
Where can you play these thrilling and rewarding slot games? Get ready to bet on the top-rated slot games online by signing up on one of our expertly reviewed casino apps.
BetMGM - Exclusive Range of Slots
Welcome Offer: Up to $1,000 First Deposit Match + $25 Casino Bonus with bonus code MCCASINO
Wagering Requirement: 15x on Deposit Match Bonus
Minimum Deposit: $10
Slots Available: 1,000+
Average Score: 4.9
BetMGM Online Slots
BetMGM is a household name, winning the hearts of many with its extensive slot collection. Whether you like classic, video, branded, or Megaways slots, you’ll find them all under one roof.
The casino frequently updates its slot category with new titles to keep players happy. You can even play unique jackpot slots exclusively launched for this site.
Caesars Palace Online Casino — Lucrative Signup Promo
Welcome Offer: $2500 Deposit Match + 2500 Rewards Credits After $25+ Wager with promo code MCPLAY2500
Wagering Requirement: 15x
Minimum Deposit: $10
Slots Available: 300+
Average Score: 4.7
Caesars Palace Online Casino Slots
Caesars Palace Online Casino is another show-stopper for slot lovers. This regulated casino site features slot titles by renowned game developers. You can also download the casino’s mobile app to spin slots smoothly anytime and anywhere.
During the initial seven days, you’ll receive an extra 2500 Caesars Reward Credits for betting at least $25 on slots.
FanDuel — Smooth Slot Gaming Experience
Welcome Offer: Play $1, Get $100 in Site Credit
Wagering Requirement: 1x
Minimum Deposit: $10
Slots Available: 250+
Average Score: 4.6
FanDuel Online Slots
Another excellent online casino for slot games to consider is FanDuel. We found the site to be extremely easy to navigate, providing us with a great gaming experience.
FanDuel offers a diverse array of slot titles with exciting themes and formats, including classic, branded, Megaways, and progressive jackpot slots. The stunning graphics, immersive soundtracks, and engaging bonus features make real-money gambling a true delight.
DraftKings — Go-to Mobile Slot App
Welcome Offer: Bet $5, Get $50 Instant Casino Credits
Wagering Requirement: 1x
Minimum Deposit: $5
Slots Available: 750+
Average Score: 4.8
DraftKings Online Slots
DraftKings is also a perfect destination to explore a wide range of slots. Some popular slot titles include 88 Fortunes, Golden Goddess, Fortune Coin, Buffalo, Cleopatra and Cash Machine. You can also participate in Mini, Major and Major jackpot slot tournaments to win big!
For convenience, you can spin slots via its mobile app. The DraftKings casino app is compatible with both iOS and Android devices. The mobile-responsive app ensures you have a seamless slot gambling time.
BetRivers — Bankable Rewards Program
Welcome Offer: 24 Hours of Casino Losses Back Up To $500 with promo code CASINOBACK
Wagering Requirement: 1x
Minimum Deposit: $10
Slots Available: 900+
Average Score: 4.9
BetRivers Online Slots
BetRivers will satisfy every type of slot fanatic with its comprehensive game collection. From adventure, Asian, Egyptian, movies and sports to classic fruit slots, there’s something for everyone. Hence, we found this online casino to be a close match to BetMGM, and it is also one of the best online casinos that payout.
We also loved BetRiver’s iRush Rewards program, which allows players to earn extra perks. For every spin, you’ll receive loyalty points that you can use to redeem bonus spins, bonus credits, elite promos, birthday gifts and much more.
bet365 — Incredible Video Slots
Welcome Offer: 100% match deposit bonus up to $500 in PA; 10 Days of Spins in NJ
Wagering Requirement: 10x
Minimum Deposit: $10
Slots Available: 250+
Average Score: 4.5
bet365 Online Slots
If you love video slots, look no further. bet365 is famous for its captivating video slot titles, such as Jewel of the Dragon, Polar Wilds, Blazing Bells, Valley of Fortunes and more.
Besides, there are various low, medium and high-volatility games. So, both low and high-rollers will have a good time playing the best online casino slots on this site.
How We Rank The Best Online Slot Sites
We don’t choose slot sites randomly. Here are the critical parameters we follow during our selection process.
Variety of Online Slots
Of course, checking the slot game library is our priority. That said, we ensure the online slot sites feature games by the top game developers.
We ensure the online casino offers a range of slot titles to satisfy every player including classics, theme-based, bonus, progressive, Megaways slots and video slots.
Online Slots Tournaments
Slot champions love to participate in competitive tournaments to win big! Our top picks host at least one of these slot contests every month, such as Scheduled, Sit and Go, Freezeout and VIP tournaments.
Most Attractive Welcome Bonuses
The best online slots casinos feature a generous welcome bonus for new members. However, we comb through the promotion’s terms to ensure it has easy-to-fulfill playthrough requirements and betting limits. Our goal is to suggest the site with the most rewarding bonuses.
Quick Payouts
Another aspect players look for when playing the best slots online is a straightforward withdrawal process. Everyone wants to credit their winnings to their real bank account as soon as possible.
We reviewed and recommended slot sites that offer lightning-quick payout options. We also ensure the platform doesn’t levy hefty withdrawal fees that will eat up your profit margins.
Easy Deposit Options
The best online slot sites use different payment gateways to facilitate payments. We ensure that banking methods are safe and quick and have no deposit fees.
Mobile Interface
You should be able to gamble whenever and wherever you want. Our list of online casinos with slot machine recommendations covers mobile-friendly sites. That way, you are not stuck to your PC. You can download a dedicated app or play directly from your phone’s browser. We also check if the slot games adjust seamlessly on different screen sizes and aspect ratios.
Customer Support
What if your money isn’t reflected in your casino wallet? All you need is friendly, instant customer support to solve the issue. Our review process verifies the availability and responsiveness of help desks on the online casino sites. The best online slot sites provide phone, email or live chat support to build trust among members.
Safety and Security
Players’ safety is also critical for us while reviewing slot gambling sites. We only choose a site that uses SSL encryption and a firewall. These technologies ensure that all your valuable personal data is secure from malicious actors.
Besides, we verify if regulatory bodies regularly conduct slot game audits on a casino site to ensure fair gameplay and outcomes.
Licensing
Last but not least, we verify the operator’s licensing certificate. The best slot sites acquire licenses from reputable gambling commissions, including the Pennsylvania Gaming Control Board, the New Jersey Division of Gaming, and the Michigan Gaming Control Board.
Types of Slot Sites Bonuses
Online slot casinos release a range of promos to keep the players happy year-round. Here’s a checklist of bonuses you can claim on these sites.
Signup Bonus
As the name indicates, this offer is available when you register on a casino site. Also known as a Welcome Bonus, you can claim this promo to enjoy extra gambling credits. Sometimes, you may have to apply a bonus code to activate this sign-up bonus.
Extra Spins Bonus
This is an exclusive promo launched for slot gaming fans. You’ll receive bonus spins in your casino wallet after claiming this promo. Usually, casinos launch this offer on newly released slot titles to encourage players to try the latest games on the house.
Deposit Bonus
This type of bonus will multiply your deposit amount. Slot casinos will match your deposited funds to a certain percentage of bonus credits under this promo. Based on the latest offer, it can be a 100%, 125% or even 300% deposit bonus. Make sure to fulfill a minimum deposit requirement to qualify for this promotion.
No Deposit Bonus
Mostly, no-deposit bonuses are available as a gift to new members. You’ll earn bonus bets or spins in your casino wallet without adding any funds to wager on the best online slot machines. However, these bonuses are rarely available.
How to Sign Up with The Best Online Slot Sites
Follow this simple step-by-step guide to seamlessly sign up for the best slot sites.
Pick from one of the recommended slot sites on this page and tap PLAY NOW to claim your welcome offer.
You will be directed to the slot site’s landing page. Click on a Sign-up or Create an Account button to register.
Add your desired username, email address and password to the sign-up form.
Enter your personal information to verify your identity, like full name, date of birth, address, phone number and email address.
Once completed, the online casino site will send a message to your registered email address.
That’s it! Log in to your casino account to bet on any online slot game you like.
Banking and Payouts for Slot Sites
The best online slot sites allow deposits and withdrawals via various payment gateways. Players can quickly add funds to their casino accounts without any extra fee. Similarly, cashing out your winnings should be a fast and hassle-free experience. However, withdrawal fees can vary based on your chosen financial mode.
The commonly available reliable banking methods include:
Bank Transfer
Wire Transfer
Debit/Credit Cards
Prepaid Cards
E-wallets
E-check
Different Online Slot Variations to Choose From
Slot games have evolved over the years, offering gamblers a variety of game choices. Let’s look at some of the most popular versions on online slot sites.
Video Slots
Also referred to as 5-reel slots, these are the most standard and visually attractive slot types. They consist of bonus rounds, allowing you to play and win more, such as bonus spins, cascading reels, wild symbols and more.
Branded Slots
These are slot games designed in partnership with famous brand owners. They vary from your favorite movies, TV series, superheroes, cartoons and video games to music bands, you’ll find slot titles based on various types of popular culture.
Classic Slots
The most loved slot version among gamblers that replicates the mechanics of land-based slot machines. These 3-reel, limited paylines slots have symbols like fruits and bars.
Real-Money Slots
The name of this slot variant says it all. You can earn money for every spin while wagering on these slots. However, your winning odds depend on various variants, such as the game’s RTP, volatility, variance, paytable and bonus rounds.
Megaways Slots
Megaways slots hold a special place in the online gaming world. The slot games constantly change symbol size and paylines in each spin. These slot versions are your chance to take home bigger payouts due to their dynamic reel and row values.
Grid Slots
In the grid slots, you won’t use a payline system but match clusters of symbols to make the winning combinations. Unlike traditional slot mechanics, you’ll play slots on grids ranging from 5×5 to 6×12.
Megaclusters Slots
These are innovative slots developed by BTG. Its unique gameplay has no paylines. Instead, you’ll try to create bigger winning clusters of matching symbols to win higher rewards.
Jackpot Slots
The best online slot machine jackpots typically work on the progressive pool concept. In these slot tournaments, the total winning amount can grow to millions. This pool prize includes a small amount from every participating player’s stake.
Most Popular Progressive Jackpot Slots Online
Check out our list of top high-rewarding slot games by industry giants. Satisfy your dream of winning big by playing one of these progressive jackpot slots.
MGM Grand Millions
Exclusively available on the BetMGM site, this progressive jackpot slot offers the participants the highest reward of up to $5,000,000. You have 243 ways to win in the main game, which can expand to 1,024 ways during the bonus spins. Moreover, this 5-reel game has a no-payline mechanic and an RTP of 91.81%.
Mega Moolah
This progressive jackpot slot by Microgaming became the players’ favorite for many reasons. Players can unlock one of four types of jackpots such as Mini, Minor, Major and Mega. Further, bonus spins, scatters and wild symbols will give you a winning edge during gameplay.
Hall of Gods
NetEnt developed this Norse mythology-themed jackpot slot with a 5-reel, 20-payline format. The competitive RTP of 95.7% indicates you’ll probably win a Mini, Midi or Mega jackpot on hitting bonus Hammer symbols.
Bison Fury
BetMGM casino presents one more interesting progressive jackpot game for its members - Bison Fury! You can win a large prize with a small bet while playing this All Ways slot game. According to BetMGM, a Southfield Michigan gambler took home a $1 million payout on a 40-cent bet in this game tournament.
Mercy of the Gods
Mercy of the Gods is another incredible progressive jackpot with 96.64% RTP developed by NetEnt game. The game’s ancient Egyptian graphics and treasure hunt theme attract many slot fans. You can earn up to 100x your stake if you trigger the major jackpot during the gameplay.
Online Slots Software Providers
NetEnt
NetEnt is the market player in providing online slot software. You’ll quickly find slot games by this Swedish brand on many reputed casino sites. Its famous slot titles include Gonzo’s Quest, Leprechaun Joy, Starburst, Divine Fortune, and Fruit Shop.
High 5 Games
High 5 Games stands out in the market for its highly engaging gameplay and elaborate animations. Some of this brand’s best online slot games include Double Da Vinci Diamonds, Cave King, Golden Knight, and All That Cash.
IGT
Found in 1971, IGT also has a diverse slot game portfolio. You’ll love to spin games like 888 Panda, Golden Wild 7s, Boiling Hot, and Bats Gone Wild. These high-quality, immersive games show the company’s passion for innovation.
WMS
Harry E. Williams founded WMS (Williams Manufacturing Company) in 1943. In 1994, the brand shifted from a pinball machine developer to an online slot software provider. Today, its iconic slot titles include Top Gun, The Wizard of Oz, Jackpot Party Casino and Super Monopoly Money.
NextGen
This slot software developer is famous for its sophisticated graphics and gameplay innovation. NextGen’s online slots provide a remarkable gambling experience due to its rewarding bonus features. We recommend its Starmania, Foxin’ Wins, Medusa II, Gorilla Go Wild and Wolfpack Pays slots.
Barcrest
Barcrest develops inventive online slots that fit the gaming choice of both high-stake and low-stake gamblers. Some of its popular slot titles include Flippin’ Out, Easy Money and Shark Raving Mad High Denom.
Important Terms for Online Slots
Undoubtedly, slots are straightforward gambling games. However, you must know the key terminology to spin the reels wisely.
Bonus Rounds
Yes, you can unlock in-game bonus rounds while playing online slots. Nowadays, many slot developers add this extra feature to enhance overall gameplay and reward system. You can unlock mini-games, re-spins, scatter, and wilds by hitting identical special symbols on the reels.
Extra Spins
Who doesn’t like extra spin rounds without placing more money at stake? You can activate exclusive bonus spins round to reel a few more times during the gameplay. So enjoy a few more betting sessions without losing money.
Paylines
A payline will help you assess the symbols produced on every spin to win a bet. You’ll win when matching symbols appear along one of the paylines.
Paytable
You can use easy-to-read paytables to check the slot game’s symbol rules, payout options, bonuses, and other special features. It’s a chart or a table that will help you understand how to form a winning combination in the chosen game.
Scatters
This online slot symbol triggers various bonus rounds during the gameplay, such as multipliers, bonus spins or bonus games. So, slot games with scatter ensure a better reward system.
Wild
Wild is another special slot symbol that automatically replaces any other symbol to complete potential winning lines. Slot titles have a variety of wild symbols, like sticky wilds, multiplier wilds, expanding wilds and moving wilds. Remember, they won’t substitute bonus or scatter symbols.
Why Play Slots Online?
The best slots online will take your gambling experience one level ahead. Here’s why switching to online slot will be worth it.
Easy gameplay: With little to no gambling skills, you can start playing these luck-based games. Understanding paylines, reel formats and paytables is enough to bet on slots.
Play anytime: Unlike brick-and-mortar casinos, online slots are available throughout the day. The casino sites are available 24 hours. So, wager at your convenient time.
Various options: The best slots sites host a huge slot collection with gripping themes, narratives, features and mechanics. The interactive visuals and graphics provide a remarkable slot gaming experience.
Fair outcomes: The RNG-based best casino slots online always throw random results. Besides, regular audits of these games ensure a fair betting experience for everyone.
Frequent new releases: Slot game developers launch new slot titles to keep players interested. Many online casino operators even offer exclusive bonuses to try the latest slots on their sites.
Get Started with The Best Slot Sites
Undoubtedly, you have various options when playing on the best slots sites. Developers release immersive slot titles, sequels, and variants. Renowned casino sites frequently update their slot game collection to please gamblers.
That said, only operators meeting our criteria get approval as the best casino slots online. So, don’t think twice. You can now easily select a slot game for your next gambling adventure.
Online Slots FAQs
What are the Best Online Slots?
The online gambling slot catalog is filled with exciting and rewarding games. Without a doubt, there are classic fruit games, themed-based slots, video slots, Megaways, and the very popular competitive jackpot slots.
The most popular slots among players are Starburst, Gonzo’s Quest, Divine Fortune, Cleopatra, Rich Wilde and the Book of Dead, 88 Fortunes Megaways, and Bonanza Megaways. The ideal one will always depend on your personal preferences and gaming skills.
Are Online Slot Sites Trustworthy?
Simply put, yes—online casinos operate only after acquiring a gambling license. Online slots work on an RNG (Random Number Generation) model, ensuring a fair and honest outcome for every player. These casinos also use the latest security systems to protect sensitive personal and financial information.
What is the Best Online Slot Site?
The best online slot sites provide a safe and fun slot gaming experience. Our top picks are BetMGM, DraftKings, Caesars Palace Online Casino and FanDuel. The generous bonuses, reward programs and slot variety make them the top players in the market.
These online casinos use reliable payment methods that add an extra star to their credibility. You can check our detailed review to learn more about these slot game sites.
How Do Online Slots Work?
Online slots use Random Number Generator (RNG) mechanics. This algorithm uses a unique set of numbers to show results as soon as the reel stops spinning. You win if the RNG selects a number corresponding to a winning combination based on the payline rules.
How to Win Online Slots?
You can use the paytable chart on the slot’s screen to assess the symbols and their payouts. Look for games with high RTP to beat the house. Choosing games with bonus features can also improve your winning odds.
Slots are games of chance. However, playing with the right frame of mind is crucial for any slot variant. So, read the slot’s rules thoroughly to understand the game’s format and layouts.
Which Slot Site Has the Best Payouts?
Payouts depend on the game’s volatility Return to Player (RTP) rate. That said, the slots with the highest RTP rate pay the best rewards. So register on the casino sites that feature slot titles with competitive RTPs.
Progressive jackpot slots on BetMGM and DraftKings usually have large prizes. You can also find high-payout slots on their sister sites, which offer the same slot games.
What are the Best Online Slots for Real Money?
The best online slot is a personal choice. If branded slots excite one gambler, it doesn’t mean the same game will also be best for you. You may like to spin video slots. Or you could like to wager on progressive slots to win big jackpots.
We suggest picking an online slot that fits your gaming choice. Thoroughly check the game’s format, features and payout system to find your ideal online slot.
Can you Actually Win on Online Slots?
Yes, you can win big when playing online casino slots recommended in this list. Your chances of winning depend on the mechanics and RTP of a game. You’ll potentially hit winning combinations when you bet on slots with higher RTPs.
Responsible Gambling
Always gamble responsibly. All licensed and legal operators in the United States have resources available to bettors, including educational guides on how to spot problem gaming, links to support services and tools to self-exclude for a set period of time. Support is available at the National Council on Problem Gaming, 1-800-GAMBLER and American Addiction Centers. Be sure to only wager on gambling sites that are licensed and regulated by the gaming regulatory body in your state. That ensures games are fair, bets are honored, customers’ funds are secure and that there are legal protections for the consumer.
Sports betting and gambling are not legal in all locations. Be sure to comply with laws applicable where you reside.
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