Top Online Casinos List of 2025 – Expert Reviews & Exclusive Bonuses

You ever scroll through dozens of online casinos, only to feel like they’re all playing the same hand? Flashy promos, bold claims—but half the time, you’re not even sure what you’re signing up for. That’s exactly why we built this page.

At ATS.io, we don’t just list every casino under the sun—we handpick the ones worth your time. The ones that actually pay out without the drama, have legit bonuses that don’t bury you in fine print, and offer games that don’t feel like they were coded back in 2003.

We’ve tested, vetted, and ranked casinos that deliver on both fun and fairness—whether you’re just here to spin a few reels or you’re chasing serious jackpots. No fluff, no gimmicks, just the real deal.

Scroll down, find your fit, and let’s get you playing smart.

Ultimate Online Casino Bonus Comparison (May 2025)

Hunting down the best online casino bonuses for May 9, 2025? You’re in the right spot. We’ve pulled together a side-by-side table that makes it easy to size up what each site’s offering—no guesswork, no fluff. From bonus cash and free spins to the fine print stuff like rollover terms and eligible games, it’s all laid out. Plus, we’ve flagged any standout perks that might give one casino an edge over the rest. Scroll through, see what fits your style, and grab a deal worth playing for.

List Of The Best Online Casinos By Category

Our team checked out more than 30 licensed online casinos putting them through their paces on a bunch of different points. We tried out hundreds of slot games, looked into live dealer options, and checked how fast and fair the payouts were. We judged each casino on five main things: how many games they had how trustworthy they were how good the overall experience was how they paid out, and how good their bonuses were. After a lot of testing, we’re pumped to tell you about the top 10 online casinos that did great in all areas giving players an amazing experience.

ATS Top 3 Online Casinos

ATS.io Top Pick: BetMGM Casino

🎲 Game Selection:

Over 500 titles, including exclusive MGM-branded slots, live dealer tables, and all the classics—blackjack, roulette, baccarat, you name it.

Best No Deposit Bonus Casinos

ATS.io Top Pick: BetMGM Casino

Backed by MGM Resorts, BetMGM Casino delivers a trusted, polished gaming experience that’s ideal for both casual players and serious bettors.

The BetMGM no deposit bonus is a welcome offer that gives new users $25 in free play just for signing up no deposit required. It’s a risk-free way to explore the platform and try out real-money games before committing any of your own funds.

🎲 Game Selection:

Over 500 titles, including exclusive MGM-branded slots, live dealer tables, and all the classics—blackjack, roulette, baccarat, you name it.

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Best Casinos With Player Rewards

ATS.io Top Pick: Caesars Palace Online

A digital extension of the iconic Vegas brand, Caesars Palace Online Casino brings its reputation for luxury into the online space without overcomplicating things.

The Caesars Rewards® program seamlessly integrates with the Caesars Palace Online Casino, allowing players to earn Reward Credits® and Tier Credits® through online gaming activities. These credits can be redeemed for various benefits, including hotel stays, dining, shopping, and exclusive experiences at over 50 Caesars destinations. Caesars Palace Online.

New members can take advantage of a welcome bonus, which includes a 100% deposit match up to $2,500 and 2,500 Reward Credits® upon placing a qualifying wager.

🎲 Game Selection:

A solid lineup of slots, blackjack, roulette, and video poker. Fewer live dealer options than some rivals, but what’s there runs smoothly and looks sharp.

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Largest Game Selection

ATS.io Top Pick: Golden Nugget Casino

One of the longest-running names in U.S. gaming, Golden Nugget’s online casino keeps things classic—with strong game variety and a reputation for reliability.

New users receive a generous welcome offer plus rotating promos like leaderboard challenges, free spins, and cashback deals. Terms are usually fair and clearly laid out.

🎲 Game Selection:

A huge selection well over 1300 games. That includes top-tier slots, plenty of table games, and one of the strongest live dealer libraries in the U.S. market.

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Best Selection Of Online Slots

ATS.io Top Pick: DraftKings Casino

DraftKings Casino brings serious heat when it comes to online slots. We’re talking over 800 titles—everything from high-volatility thrill rides like Dead or Alive 2 to laid-back crowd-pleasers like Starburst. What really makes it stand out, though, are the exclusives. Games like DraftKings Rocket and DraftKings Digits don’t show up anywhere else, and they’re not just gimmicks—they’re actually fun, fast, and a little different from your usual spin-and-win setup.

What seals the deal is how smooth the whole experience feels. Whether you’re playing from your laptop or on the couch with your phone, the platform runs clean and fast. No lag, no weird layouts just get in and play.

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Best Live Dealer Casinos

ATS.io Top Pick: Caesars Palace Casino

Caesars Palace Online Casino doesn’t just slap the Vegas brand on a website—it actually delivers a solid live dealer experience that feels grounded and legit. You’ve got real-deal games here: blackjack, roulette, baccarat, even some game show-style stuff for when you want a break from the usual. The streams run smooth, the dealers know their stuff, and switching tables doesn’t feel like a chore. It’s easy, it’s clean, and it just works—kind of like you’d expect from a brand that’s been around the block.

Game Show-Style Inspired Casino: Wheel Of Fortune

MGM teamed up with Sony Pictures Television and International Game Technology. Together, they created North America’s first full brand-led online casino. This casino mixes the fun of the popular game show with the rush of betting real money at the Wheel Of Fortune casino.

For over 40 years, Wheel of Fortune has kept millions glued to their TV screens. But its reach goes way beyond just television.

In the last 25 years, casinos have rolled out more than 250 types of Wheel of Fortune slots around the world. Players love these games for their fun style and big payouts.

Fanatics Casino – Best newcomer to online casino gaming

Fanatics, well-known as America’s favorite official sports apparel company, expanded into online gambling in 2022. Their online casino offers a range of popular casino games and is currently available in Michigan, New Jersey, Pennsylvania, and West Virginia. Though their portfolio features over 350 games, each game is modern and designed to entertain, featuring popular slots, table games, and even exclusive titles that can only be found at Fanatics’ online platform.

What Real Players Look for in a Good Online Casino

Let’s face it—choosing an online casino isn’t just about the size of the bonus or how slick the homepage looks. That stuff’s nice, sure. But what really counts? Trust, fairness, and not feeling like you’ve got to read a legal dictionary just to understand the terms. Here’s what actually matters when you’re picking where to play:

1. Fast Payouts—No Games, Just Your Winnings

When you win, you should be able to cash out without jumping through hoops. The best casinos won’t stall, dodge, or “accidentally forget” your withdrawal. Some payment methods might take a couple of days, yeah—but you shouldn’t be left wondering where your money went.

2. Plenty of Ways to Pay (and Get Paid)

Ever sign up and realize your favorite payment option isn’t even listed? Frustrating. That’s why the top sites support everything from Visa and PayPal to Bitcoin and bank transfers. It’s all about giving you choices that work for your style and comfort level.

3. Customer Support That Actually Helps

When something goes sideways—like a failed deposit or an account lockout—you need support that’s easy to reach and actually knows what they’re doing. Live chat’s usually fastest, but good casinos back that up with email and phone support too. Bonus points if they’re friendly and don’t treat you like a problem.

4. Simple, No-Nonsense Verification

Verifying your account should be quick, not some drawn-out back-and-forth. A legit casino just asks for the basics: photo ID, maybe a utility bill. That’s it. If they’re asking for six types of paperwork and a blood sample? Yeah, move on.

5. Games That Don’t Feel Rigged (Hello, High RTPs)

Return-to-Player rates (RTPs) tell you how much a game pays back over time. The higher the number, the better your chances. Good casinos are upfront about this and offer plenty of high-RTP slots and table games—not just the ones with eye-catching animations.

6. A Track Record You Can Actually Trust

If a casino has been around for years and people still say good things about it? That means something. Look at player forums, Reddit threads, and third-party reviews—see what real people are saying, not just the polished PR stuff.

7. A Site That’s Easy to Use (Even After a Few Drinks)

Ever tried navigating a cluttered casino site on your phone at 1 a.m.? Nightmare. Clean layouts, clear menus, and quick load times matter more than flashy graphics. If you can’t find the withdrawal button without a map, that’s a red flag.

8. Mobile Gaming That Doesn’t Suck

Playing on your phone shouldn’t feel like a downgrade. The best casinos have either a smooth mobile site or a solid app—or ideally both. Everything should run fast, look clean, and just work.

9. Bonuses That Aren’t Booby Traps

Big bonuses are great until you find out you’ve got to wager your winnings 50 times before you can touch them. Reputable sites keep it fair: clear terms, realistic rollover requirements, and no surprise rules buried three links deep.

10. They Actually Care if You Lose Control

Real talk—gambling can be fun, but it can also get out of hand. The best casinos make it easy to set limits or take a break. If a site has self-exclusion tools, deposit caps, and resources for help? That’s a good sign they’re not just in it for your last dollar.

Bottom line? A solid online casino isn’t just a flashy bonus and a license badge. It’s a place that respects your time, your money, and your experience. Keep these 10 things in mind, and you’ll avoid the traps and find a site that’s actually worth your trust.

List Of Online Casinos In The US

List Of Online Casinos Available In Canada

What States Offer Legal Online Casinos?

Legal online casinos first hit the US betting market in 2013 when New Jersey was the first state to allow betting on slots, table games, video poker and more from the comfort of your computer or mobile device.

Since then, three other states have legalized and launched online casinos with many more looking to bring legal online casinos within their borders.

New Jersey

• Market Status: Legal and Live since 2013
• Highlights: The largest online casino market in the US

Long before legal sports betting arrived, New Jersey launched online casinos and online poker within their borders. The first legal casino wagers took place in February 2013 and has since grown into the most robust gambling market in the US.

New Jersey is home to over 20 online casinos, with more being added each year. The NJ online casino list consists of Atlantic City mainstays like Ceasars and Borgata alongside newcomers to the online gambling industry such as FanDuel and DraftKings have also joined in on the fun.

In this extremely competitive market, New Jersey also boasts the most lucrative new player bonuses in the US market.

Pennsylvania

• Market Status: Legal and Live since 2019
• Highlights: Highest population market in the US

The Pennsylvania online casino market was part of a huge gambling expansion package brought forth in 2017. The gambling package included online sports betting, online poker and a revamp of the retail casino categorization.

After nearly a two year wait, the virtual casinos finally took their first bets in July 2019 when SugarHouse Online Casino opened their doors. Since then, nearly a dozen online casinos have joined in on the action.

Pennsylvania is home to nearly 13 million residents, making it the largest legal online casino market in the US.

Each retail casino can have unlimited skins through their license but the high tax rate has made it not the most desirable landing spot for some of the smaller online casinos. Pennsylvania is home to many of the top names in online gambling like FanDuel, DraftKings, BetMGM and Caesars.

Michigan

• Market Status: Legal and Live since 2021
• Highlights: Typically one of the highest handle in all the US market

As part of a huge gambling expansion package signed by Governor Gretchen Whitmer in December 2019, MI online casinos are thriving in the Wolverine State. Alongside online sports betting and online poker, Michigan launched Online Casino games in January 2021.

Michigan is home to all the big names in online casinos such as DraftKings, BetMGM, Caesars and BetRivers and is consistently among the top states in gambling revenues in the US market. Michigan residents can enjoy table games, live dealer, slots and more!

West Virginia

• Market Status: Legal and Live since 2020
• Highlights: Each License Owner can have up to 3 skins

West Virginia passed legislation to allow online sports betting and online casinos in March 2019 but did not officially launch until July 2020. With sports betting options being at a premium during the launch period thanks to the Covid-19 pandemic, there was a strong tilt towards online casinos during this time.

West Virginia is home to many popular online casino brands such as FanDuel, BetMGM, Caesars, Golden Nugget and BetRivers.

With West Virginia’s small population, it comes in as the smallest market in the online casino world, but with plenty of options, there is no shortage of games to be played when living or visiting the Mountaineer State.

Connecticut

• Market Status: Legal and Live since 2021
• Highlights: Two Online Casinos – FanDuel & Draftkings

Connecticut’s legal online casinos were launched in October 2021, marking a significant milestone for the gambling community. From legislation to partnerships, let’s explore the top highlights of the industry. Since going live, Connecticut’s online casino industry has seen the emergence of top operators:

1. DraftKings Casino: Partnered with the Mashantucket Pequot Tribe, DraftKings Casino launched with Foxwoods Casino in October 2021.
2. FanDuel Casino: Launched alongside Mohegan Sun, FanDuel Casino also started operations in October 2021 with the Mohegan Tribe.

As of now, these two big names dominate the CT online casino scene, but the state’s evolving legislation could allow more operators in the future.

List Of States With Sweepstakes & Social Casino Gambling

Sign-Up Bonuses for New Customers At Online Casinos

Each online casino will offer new customers a bonus of some type when registering a new account. You may be wondering why they would just give away money, but in this competitive market, customer acquisition is extremely important.

Imagine you purchase a new car, and the dealership offers you three free oil changes when you buy from them.

The car dealer is willing to eat the cost of the oil changes to retain a customer long term in their service department after experiencing the high level of service they receive during this promotional period.

The same principal applies to online casinos. When they offer you free money to sign up, they hope that you enjoy your experience, win some money so that when you do decide to play casino games online, you return to their site.

Furthermore, after that initial sign-up period, these casinos are all running daily and weekly promotions, including cash-back rebates on losses on certain days, reload bonus offers on certain days, and different promotions, new games, and offers to keep you coming back for more and more fun and excitement.

How Do I Claim These Bonuses?

Each US online casino is different. Some apps will give you a No-Deposit bonus or a free bet so that you can try everything out. It’s just like test-driving a car before you buy it.

Other apps will give those aforementioned Match Bonus offers. That means that you will get a percentage of bonus money based on the amount of your first deposit.

You always want to look at the terms and conditions because there is usually a maximum match bonus amount on that first deposit, but these are usually very well-defined and stated on the offer page.

What kind of Casino games can you find at online casinos in the US?

Card Games

While slot machines would certainly seem to be the easiest, and we’ll add video poker and video blackjack in that group as well, these casino apps offer an extensive collection of card games.

Blackjack is probably the favorite for most users, but blackjack variations are also available at most sites, like Blackjack Switch, Spanish 21, and all of those side bets that you are used to seeing on the table are available at a lot of places as well.

Card games are far from limited to blackjack. Carnival games like Three Card Poker, Let It Ride, Four Card Poker, and Caribbean Stud Poker can be found, along with Casino War, Ultimate Texas Hold ‘Em, and Pai Gow.

Remember, the plan is to have the full casino experience and that means a lot of different game offering.

Table Games

Other table games include roulette and craps. Virtual craps is a great way to learn a high-octane game. If you find a full craps table in a casino, chips and bets are going to be flying around everywhere. It can be extremely overwhelming and confusing.

With the online craps games, you are always the shooter and you can place your bets at your leisure without being pressured by the other players or the stick man. You can also play the “dark side” without hatred from the other people at the table as well!

Poker

Non-table game versions of poker are in a different spot. Most sports betting apps and casino apps also have some sort of poker app tied in as well. You can read all about those in our section dedicated completely to poker.

Top Casino software providers

The software provider behind an online casino plays a critical role in shaping its identity, functionality, and game selection. Top-tier providers not only determine the quality and variety of games but also ensure the platform runs smoothly and securely. For example, leading New Jersey and Pennsylvania online casinos rely on robust software to deliver a seamless gaming experience. The innovation, reliability, and reputation of a casino’s software partner are key factors that set it apart from competitors.

Features and Innovation in Casino Software

Modern casino software platforms continually evolve, incorporating new features to enhance user experience. Innovations like auto-play functionality streamline gameplay, while integrated banking options simplify deposits and withdrawals using credit cards, e-wallets, or other secure methods. Software providers also focus on creating visually stunning games with high-quality graphics and immersive effects. Whether it’s classic games like blackjack and roulette or modern slots with unique twists, top providers offer a mix of traditional and innovative titles to cater to all types of players.

What to Look for in Casino Software

When evaluating casino software, factors like speed, stability, security, and fairness are essential. The best platforms are rigorously tested by independent organizations to ensure compliance, secure payouts, and a fair gaming experience. Players should also consider the availability of their favorite games and whether the software includes essential features like poker rooms or multiplayer options. Transparency is crucial—top providers regularly publish payout percentage reports and undergo periodic compliance testing to maintain trust and legitimacy.

Top Casino Software Providers in the US

Casino software providers are the backbone of online gaming, delivering a wide variety of games and advanced features to enhance the player experience. Here are some of the most reputable casino software providers in the US:

Leading Casino Software Providers

Fairness and Compliance

Top casino software providers prioritize transparency and fairness, ensuring players enjoy a secure and equitable gaming environment. Independent testing agencies regularly audit their systems, evaluating aspects like:

• Source code and payout minimums: Ensures games meet industry standards.
• Monthly payout percentage reports: Validates that games pay out as advertised.
• Compliance tests: Confirms adherence to regulatory requirements.

These rigorous processes build trust, making sure players can enjoy their favorite casino games with confidence.

By partnering with these top-tier providers, online casinos deliver a premium experience that combines cutting-edge technology, engaging gameplay, and reliable fairness. This ensures a safe and enjoyable environment for all users.

What are my banking options at online casinos?

Another key element to look for in all of these casino apps is the cashier. You want plenty of deposit and withdrawal options.

If you want to deposit with PayPal instead of Visa or Mastercard, that is something that you may have to look for. If you want to use a credit card or do a bank transfer, just about every casino app will offer that.

Some may offer a lot more than that and some of those aforementioned deposit bonuses may be contingent on a certain deposit method, so you’ll want to look into that as well.

Just as important is the right amount of withdrawal options. These casino apps are tied in with the brick-and-mortar facilities, so you can always withdraw at the casino cage, but the convenience of these apps is what makes them so special.

If you can get your money via PayPal or a bank transfer as opposed to waiting on a check, that might be something that you want to look for prior to signing up.

Responsible Gaming

Responsible Online Casino Gaming

When playing at top USA online casinos, it’s essential to choose legitimate platforms that prioritize responsible gambling. These sites comply with local state regulations and provide tools to help players manage their gaming activity. Features like account limits, age and location verification, and easy access to professional resources ensure a safe and secure gaming environment.

Setting Gaming Limits

Playing online casino games can be an enjoyable and thrilling experience, but it’s important to ensure gaming remains fun and within your control. Legitimate USA online casinos offer tools to set deposit, wager, and loss limits, helping players stick to their budgets and prevent overspending. By using these limits, players can maintain a stress-free and entertaining experience.

Licensed and regulated platforms stand out from unlicensed operators by providing these essential tools. Offshore or unregulated casinos often lack responsible gaming features, leaving players vulnerable to overspending and financial stress. For this reason, we recommend only trusted USA casinos that prioritize responsible gaming and adhere to local laws.

Accessing Professional Help

Leading online casinos understand that some players may face challenges with their gaming habits and make it easy to access external support. Resources such as helplines, self-help strategies, and tips for managing problem gambling are readily available. These tools empower players to take breaks, set boundaries, and seek professional help when needed.

Many state regulations require casinos to provide these resources, reflecting a commitment to player safety. If you or someone you know struggles with gambling, reaching out for professional help can make a significant difference. Responsible gaming is about balance, and these tools ensure you can enjoy gaming safely while focusing on other important aspects of life.

Getting Help

1-800-GAMBLER is the helpline for the National Problem Gambling Helpline, providing support and resources for individuals facing problem gambling or gambling addiction. It also serves as a vital resource for family members and loved ones seeking assistance. Individuals can also seek out help in their state find a list of all 50 states here.