Best Online Slots 2023 - Play Slot Games Online

Online slots come in their thousands, giving players a huge range of options to choose from and offering the biggest prizes of all games found at a casino. To help enhance your gaming experience, our slots hub has everything you need to know about slots, from the variations of slot games available, to how to play and the best free play slots that you can enjoy at no expense! Read More Read Less


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Ratings are determined by the CardsChat editorial team. This team carries out a strict auditing process when reviewing sites, assessing payout speed, game variety, software quality, level of security, mobile compatibility, and customer service.
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Types of Slots

Slots come in many shapes and sizes, each suitable for a different type of player. The right slot for you can depend on your budget, experience level, and more. Each game type involves its own strategy and gameplay style to keep things interesting. The most popular types of slot game are:

Real Money Slots

Real Money Slots

Playing slots for real money is a risk but can also be rewarding. Wins are usually gained by matching symbols on a payline, or via one of a myriad of possible bonus games that are triggered from the slot's base game, usually via scatter symbols.

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Jackpot Slots

Jackpot Slots

Jackpot slots have a fixed jackpot, or a progressive jackpot that builds up over time. These slot titles will usually provide other gameplay features, but it is the jackpot that players are hoping to hit, with the potential to win millions in some cases.

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Penny Slots

Penny Slots

A penny slot is, simply, a slot that can be played for a penny (or a cent) per spin. These are popular slots because of the low minimum bet. However, prizes are usually lower when betting a penny at a time on a slot game.

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Video Slots

Video Slots

Video slots are modern slot games with immersive graphics. Presented in 3D, these slots are almost unrecognizable from the fruit machines that preceded them, often involving exciting bonus features, video slots can also include animations, movie footage, and more.

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Vegas Slots

Vegas Slots

Vegas slots are traditional style slots that made their name on the floors of Las Vegas' famous casinos, before making the move to an online environment. IGT's Cleopatra is arguably the most famous example of a Vegas slot.

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Free Slots

Free Slots

Free slots are titles available to play for no money. While real money win are not usually possible, free slot games provide a good way to developer slots strategy and try out new titles without risking any of your casino balance.

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Slots Providers



Famed for its Vegas classics Cleopatra and Da Vinci Diamonds, IGT has developed a large number of exciting slots with original features for the online casino environment.



The Age of The Gods progressive jackpot series is the jewel in the crown of this impressive slot developer. New slots are regularly added to further improve the Playtech portfolio.



One of the most well-known developers, Microgaming provides excellent progressive jackpots such as Mega Moolah and classic slots including Immortal Romance.



Best known for videogames, Konami is also a prolific slots developer. Frogger Woodland Wilds and Lucky Honeycomb Hot Boost show of the unique style of this Japanese developer.



From much-loved titles like Gonzo's Quest and Starburst to Mega Fortune and other progressives, Swedish developer NetEnt offers a huge number of unique and high-quality slots.



Multi-time award-winning developer Quickspin is best known for their playful, cartoon-style slots. Big Bad Wolf, Sakura's Quest, and Spinions are amongst the most popular Quickspin releases.



Responsible for introducing bonus games to online slots, Williams Interactive puts innovation front and center of its spectacular slot selection.

Mobile Slots

Many online casinos offer mobile slots to play all your favorite titles for real money gaming on the go. The best mobile casino apps provide exciting gameplay, astounding graphics, and brilliant bonus features. Whether you're looking for classic slots or progressive slots, you’ll find them at one of our recommend mobile casino sites.


All Android smartphones and tablets can be used to play slot machines. Just open the browser and tap in the URL. You'll then be taken to a mobile optimized site. You can also sometimes download a free app from Google Play. Android casinos are known for offering large game selections and fast speeds, especially when connected to a Wi-Fi network.


All modern iPhones can be used to play slots online. This is also the case when it comes to iPads as well. iPhones are known to have high-quality displays, meaning that casino games look superb on them ‐ something that will massively enhance your playing experience. As with Android devices, iPhones can also be used to download free casino apps. This can be done at the App Store. You can check out more iPhone casinos here.

Online Slot Bonuses

Free Spins Bonuses Free Spins Bonuses

Often part of a welcome bonus, free spins bonuses give players the chance to spin the reels of a popular slot without spending any money. Winnings from these spins are provided in either real money or bonus money.

Deposit Match Bonuses Deposit Match Bonuses

A traditional welcome bonus, these promotions match a deposit with an equivalent amount on bonus money. This bonus money can be used on various slots available at your chosen online casino to give a chance to experience the games.

No Deposit Bonuses No Deposit Bonuses

A no deposit bonus usually comes in the shape of free spins. These spins are given to players who register at an online casino before making a deposit. Winnings are normally paid in bonus money with attached wagering requirements.

Free Entry Tournaments Free Entry Tournaments

Many online casinos offer free entry slot tournaments for players. Here, you will be given a set number of spins, with prizes given for the player (or players) who achieve the highest score. Possible prizes include more free spins and bonus money.

Best Free Slots

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Double Bubble

Double Bubble

Realistic Games? Double Bubble is an underwater themed slot with five reels and 20 paylines. A fun game to play, the free spins feature has an innovative doubling mechanic.



One of the most played slot games of all time, in casinos and online, IGT's Cleopatra is the mother of Egyptian themed slots. The free spins feature can offer up to an impressive 180 spins.

Book Of Ra

Book Of Ra

Another Egyptian themed slot, Book of Ra provides fun features including a progressive jackpot. The free version of this game is enjoyable too, especially when the free spins feature is triggered.

Best Real Money Slots

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Mega Moolah

Mega Moolah

One of the popular progressive jackpot slots, Microgaming’s Mega Moolah has an RTP of over 98%, a potentially lucrative free spins feature, and a progressive jackpot that has been known to pay out life-changing sums.

Rainbow Riches

Rainbow Riches

Barcrest's Rainbow Riches is a hugely popular slot that has spawned many sequels. With an Irish Luck theme and a leprechaun mascot, there are three main features, each offering a max prize of 500x the stake.



One of Big Time Gaming's best known Megaways slot, this mining themed game offers up to 117,649 ways to win on every spin. This six-reel slot also provides a Cascading Reels feature and a free spins round.

How to play Slots

It really couldn't be much easier to play online slots. Quite simply, spin the reels and see how the symbols land. If you get a winning combination of symbols, you'll receive a prize. You could also activate a bonus feature, which is a side game that can have juicy prizes attached to it. Learn how to play slots in this comprehensive guide.

1. Your paylines
Your paylines

Choose how many paylines to have active (if possible).

2. Bet amount
Bet amount

Choose how much money to bet.

3. Spin

Spin the reels and see how the symbols land on the reels.

4. Prize or bonus
Prize or bonus

You could win an instant cash prize or could start a bonus feature.

5. Bonus feature
Bonus feature

If you're starting a bonus feature, complete the game as per the instructions.

6. The winnings
The winnings

Any winnings are automatically paid into your casino account.

Slot Symbols

  • Playing Card

    Playing card symbols

    Traditionally used to represent lower values.

  • Hight Value

    High value symbols

    Themed symbols that pay out high for five on a payline.

  • Wild

    Wild symbols

    Substitute for other symbols to help form winning combinations.

  • Scatter

    Scatter symbols

    Symbols which trigger the free spins or bonus round.

Slots Symbols

Slot Machine Payouts

Rank Best Slots Provider RTP % Rating
Rank 1 of 5 1 Thunderstruck II Microgaming 98.65% 9.3
Rank 2 of 5 2 Wheel of Fortune IGT 97.60% 8.9
Rank 3 of 5 3 Mega Fortune IGT 96.05% 8.7
Rank 4 of 5 4 Wizard of Oz WMS 95.99% 8.6
Rank 5 of 5 5 Book of Ra Deluxe Novomatic 96.99% 8.5

Tips for playing real money Slots Online

Slots are games of chance, operating through Random Number Generators (RNG). This means there is no strategy that guarantees wins when playing slots. However, there are some tips to keep in mind when playing online slot games.

Check the RTP Check the RTP

The RTP (return-to-player percentage) of a slot means the average amount won when playing the game.

For example, a slot with a 97% RTP will pay out an average of $0.97 per $1 bet. This is an average, not a guarantee, but does mean a slot with a higher RTP is slightly more likely to pay out.

Use all the paylines Use all the paylines

Some slots provide variable paylines. This means you can select the number of paylines active when you play. While less paylines is cheaper, it also shuts down some of the way to wins. Always bet the maximum number of paylines if you can afford to or play a fixed payline slot.

Keep to your budget Keep to your budget

While betting higher amounts can make wins more likely, it does not guarantee wins. Have a budget in mind before you start playing, and whether you reach that budget in 200 small value spins, or 10 high value spins, make sure you stop. Never bet money you can't afford to lose.

Stick to the best Stick to the best

The highest profile software developers have the reputations they do for a reason. Not only are the games from these developers the highest quality in terms of bonuses and graphics, they are also known to be safe, secure, and fair.

Free play first Free play first

If you're considering trying a new slot, see if you can find a free version of it before making your first real money bet. This gives you a chance to try the slot out and practice some strategies before moving on to real money play.

Bonus Rounds Bonus Rounds

Always keep an eye out for tempting bonus rounds whilst playing. Some online slots games have hidden bonus features, so you could get lucky and stumble across free spins, jackpots, multipliers, or cash prizes.

Sweepstakes Casinos

Sweepstakes Casinos adapt old sweepstakes laws which allow for real money slot play online. This is done by allowing players to spin the reels of slots using virtual currencies, which is purchased with real money. These online casinos started back in 2005 and have been growing in popularity ever since.


How do online slots work?

You just need to spin the reels and then see which symbols come up. If you get a winning combination of symbols, you'll be given a prize. Some slots also have bonus features, such as free spins, which are loads of fun and can lead to some big prizes.

Can I play slots for free?

Yes. Every one of our recommended online casinos will allow you to play free slots. This is great if you want to learn how to play before risking any of your own money. You can find a huge collection free casino games here.

Can I play slots online for real money?

Yes. In fact, the vast majority of people at casinos play real money slots instead of free ones. Slots have a large range of different stakes available, with some being playable for just 1c a spin and others costing hundreds of dollars per spin. This means everyone will be able to play at a level they're comfortable with.

Are online slots rigged?

We can guarantee that online slots found at sites we recommend are not rigged. This is because every recommended site is properly licensed and regulated by a reputable external agency, plus most have also had their games verified as fair by an organization like eCOGRA.

How do I pick a good slot machine?

It's easy to find the best slot machines; just look through our reviews to find the sites offering the very best selections. The reviews will tell you everything from the software providers used, through to how large the progressive jackpots can be. Found a site that looks good? Just sign up, make a deposit and start playing!

What is a progressive jackpot?

Most slots have standard jackpots that always remain at the same value. Some slots have progressive jackpots that rise as more people play the game. When a lucky player scoops the jackpot, it will then reset back to its minimum level, before starting to build up again. Check out more jackpot slots here.

Which online slots pay out the most?

When it comes to the slot with the biggest jackpot, it's almost always Mega Moolah. This is the world's most popular progressive slot and regularly offers a jackpot worth over $10 million. Alternatively, you can look for slots with the lowest house edge, and these include Ugga Bugga and Ooh Aah Dracula.