Online slots are the most popular casino game you will find in any online gambling market around the world! Now that online gambling is legal in Pennsylvania, players have multiple slots options. has a guide with everything there is to know about online slots in Pennsylvania!

Discover the latest Online Slots 

You can find hundreds of online slot titles to choose from at the online casinos in Pennsylvania. Read our slot reviews to discover the newest titles to hit the market as well as our top picks

You can find these slots at the following casinos, listed as our top PA casinos for slots online right now!

Hollywood Casino  

Hollywood Casino offers one of the best virtual slots libraries in PA, with over 80 titles to choose from! The library is full of video slots, including a ton of exclusive titles. You can also find our favorite jackpot slot, Divine Fortune. 

IGT is a powerhouse in the iGaming industry and also supplies a handful of titles to Hollywood. Sign up to claim the no deposit bonus of $25 and use it towards trying out some new online slots! Find the following popular online slot titles, and much more, at

  • Starburst
  • Dead or Alive
  • Davinci Diamonds
  • Cleopatra
  • Blood Suckers 
bonus $ 25
free spins 0
  • Over 100 slots to play
  • 100% deposit match up to $500
  • Mobile app available for iOS and Android

SugarHouse Casino  

SugarHouse PA features over 70 slot titles mostly supplied by NetEnt. You can also filter through titles by IGT, Konami, and Everi. Take advantage of the low 1x playthrough requirement on the following games:

  • Divine Fortune
  • Butterfly Staxx 
  • Blood Suckers
  • Fruit Spin
  • Cleopatra
  • Starburst
  • Gonzo’s Quest 
bonus $ 250
free spins 0
  • Use PayPal to deposit and withdrawal
  • Games supplied by a variety of top providers
  • Lowest wagering requirement in the market

Unibet Casino 

Like Hollywood, Unibet has launched with one of the bigger online slot libraries in the PA market. You’ll find titles provided by a lot of big names in the industry and exclusive games. Jackpot Shores is an exclusive jackpot slot you can play at Unibet!

One reason the Unibet slot library stands out from the others is that most of the titles have a great payout. The majority of titles are at 95% and over! You will also be able to find the most popular slots in the market right now, including:

  • Dead or Alive
  • Guns N’ Roses 
  • Divine Fortune
  • Cleopatra
  • Starburst
  • Butterfly Staxx  
bonus $ 510
free spins 0
  • $500 Welcome Bonus!
  • Mobile app for iOS and Android
  • Use PayPal to deposit

What are Online Slots

Online slots are the same as any slot machine found on any casino floor, except that they are played online. There is a large selection of online slots to choose from in PA, including a ton of exclusive titles. You'll see a lot of top game providers also supplying each online casino in the state.

The goal in virtual slots is to spin and match as many symbols on as many lines as you can. Your payout is determined by the types of symbols you match and the amount of your wager.  

Every online casino in PA uses a Random Number Generator (RNG) software, which guarantees the outcome of the game is always random.    

How much can you win on Online Slots

Depending on the slot you have chosen to play, winnings can vary from $1, up to a few million. The only time you will see six-digit winnings is if you’re playing a jackpot slot and get very, very lucky! We'll explain the different types of slots later on.  

How are Online Slots legal

Online gambling is regulated at a federal level in the United States. This means it’s up to the state to legalize whatever forms of online gambling they want. Slots online are legal in PA and monitored by the Pennsylvania Gaming Control Board. 

Why play Online Slots?

There are a ton of reasons why you should be playing online slots! 

  1. Convenience: You can play from anywhere in the state and take it to go on mobile. (Slots are played best on a mobile device). 
  2. Variety: Online slots come in all kinds of shapes and sizes. No matter the type of gamer you are, we are sure you will find a slot game that suits you.  
  3. RTP: Compared to slots at the brick and mortar, online casinos offer an RTP between 95% to 99%. 
  4. Bonuses: You will find a lot of exclusive bonuses ready to be used towards online slot games. There will also be featured bonus rounds in gameplay, loyalty points, and free rounds!

How to play Online Slots

No matter the type of online slots game you decide to play, and believe us there’s a lot, the rules and gameplay will always be the same. Basically, all you need to do is:

  1. Decide how much you want to wager per spin.
  2. Press the button
  3. Hope the symbols match up with a winning pay line!

There are a lot of options when it comes to wagering on slots. Usually, games will offer a minimum bet of 0.10 cents a spin and, depending on the slot, max bets of one hundred.

In order to start playing online slots, you will need to find an online casino you trust and complete signing up. (Above, we mention our top choices for online slot casinos in Pennsylvania!) After that, it is just a matter of scrolling through the games and finding one that catches your interest.

How to win at Online Slots

Slots involve a lot of luck and a little strategy, however, different slot games will offer different odds. Next time you’re playing slots, keep these points in mind: 

  • Set a budget! It’s very easy to get carried away while playing slots. Look for games with low minimum wagers and most importantly, do not chase any losses!  
  • RTP: Look for slot titles that have a high Return To Player percentage. 
  • Promotions and bonuses can go a long way in online slots! Take advantage of free spin offers and you could be lucky enough to double your bank account.

Slots Online: Return to Player & volatility 

Your chances of winning cash on online slots are based on the RTP percentage and volatility. These will vary depending on the online slot game you are playing. 

What is the Return to Player

Return To Player (RTP) is is the amount of money you will get back from a slot over time, represented as a percentage. The higher this number is, the better. 

Blood Suckers, one of the most popular slots designed by the Swedish game provider NetEnt, has an RTP of 98%. 

When looking for an online slot to play, we recommend slots with an RTP of 96 to 99%.  

What is volatility

Volatility is all about the risk involved in an online slot game. You’ll find slots with high, medium, and low volatility. 

High volatility slots offer big payouts occasionally. Low volatility slots offer smaller winnings much more often. You can still see a big prize playing either type, but the jackpots are found in the high-risk slot games.  

Different Types of Slots

The following are the most common types of virtual slots you will find in Pennsylvania right now. 

Video slots

What are video slots

Video slots are multi-reel slots that have numerous pay lines. They are the most common slot type and offer all kinds of ways to win! You’ll be able to filter through a huge selection of video slots in Pennsylvania. The slots featuring multiple themes, strong visuals, and different bonus rounds. 

How do online video slots work

The goal in video slots is to match up as many symbols as you can on the pay lines given. Like any other slot, you’ll place your bet and click the button and watch the symbols drop. Video slots offer a lot of bonuses that can be used during gameplay to increase your winnings!

Best video slots

Blood Suckers II and Gonzo’s Quest rank as some of the best video slots you’ll find in PA. Both feature impressive graphics, free spins, wilds, and scatter symbols. PlaySugarHouse offers some of the best video slots in PA right now, supplied mostly by NetEnt. You'll even find exclusive video slots available to play!

bonus $ 250
free spins 0
  • Use PayPal to deposit and withdrawal
  • Games supplied by a variety of top providers
  • Lowest wagering requirement in the market

Progressives slots 

What are progressive slots

Slot games that offer a jackpot prize that increases every time a player spins. It's a long shot to actually hit the huge jackpot that's been accumulating over time, but could be worth the risk!  

How do progressive slots work

Every time a player deposits on a progressive slot, a percentage of their bets go towards the jackpot. Over time this number can reach the millions until one lucky person hits it, and then the jackpot resets. 

Best progressive slots

By far the most popular progressive slot in the market right now would be Divine Fortune. The slot has a jackpot that is hit more often than other slots and features a variety of ways to hit free spins and wilds. These lead to even more rewards!

Classic slots

What are classic slots?

Classic slots have 3 - 5 reels and usually use basic symbols, like fruit or numbers, with a little animation. Compared to the video slots, you won’t find many online classic slots to play anymore.   

How do classic slots work?

Classic slots offer one to five paylines with few reels, so there aren’t as many combos to win like with video slots.

Classic slot graphics are limited, but they can still offer good bonuses and high payouts. 

Best classic slots

Double Diamond is one of the most basic slots in the market, but remains a player favorite! The slot is designed by IGT and features 3-reels and one payline. Players love the simplicity of the game and the low minimum and max bets. 

How to choose which Online Slots to play

With such a huge variety of PA slots available to choose from, how do you know which one is worth depositing to? In general, you want to look for slot titles that have a high RTP percentage and bonuses like free spins. 

Bonuses are important in slots because they give you a better chance of increasing your cash. For example, an online slot that features scatter symbols could unlock free spins. This could lead to entering a bonus round and potentially doubling your bankroll.

If you like to take risks and not pay attention to your bank account, you want to look at high volatility slots. Low volatility slots are great for the players who have a budget and aren’t looking for a huge jackpot.  

The best way to do your research on a specific slot is to test it in demo mode. This way you’re spending nothing and can learn what each symbol means and how often the bonus rounds come along. 

Online Slots Providers

Online slot providers are companies that design the slot game and software behind it. Operators will make deals with providers to fill their game library with a variety of titles.

Best slots providers

In Pennsylvania, most of the online casinos use the same providers to power libraries. NetEnt and IGT are recognized in iGaming as a few of the top game providers and have designed a lot of popular slots. These include Divine Fortune, Butterfly Staxx, Cleopatra, and DaVinci Diamonds.

You’ll also see online slot games by Konami, Scientific Gaming, High 5 Gaming, and Everi. 

What Online Slots payout best 

Some online slots will offer you better odds than others. Here, we have listed some of the best slots to play in PA due to the high RTP percentage that comes with each!

  • Blood Suckers (98%)
  • Divine Fortune (96.6%) *jackpot slot*
  • Wolfpack Pays (97.7%) 
  • Mega Joker (99%) 

NetEnt is responsible for designing a lot of online slots with high RTPs. At Hollywood Casino, you will find a variety of games designed by both NetEnt and IGT! You can find the RTP of every slot title listed below the game. 

bonus $ 25
free spins 0
  • Over 100 slots to play
  • 100% deposit match up to $500
  • Mobile app available for iOS and Android

How to play slots for free?

All online casinos in PA offer online slots for free play. Playing slots in demo mode is the best way to try new titles, risk-free. You can see what you like, and understand the symbols and bonuses offered by different games. 

  • Find an online casino in PA you trust. (You can read our casino reviews to see which online casino is best for you!) 
  • Complete registration and claim a no deposit bonus if one is being offered. 
  • Filter through the online slots and choose the demo mode option. 

When you play slots for free, you do not have the chance to win any real money. However, you can opt to switch to real money play at any point. You must be the legal gambling age (21), in the state of PA, and signed into your online casino account. 

Where to find free slots

Every casino online in the state offers free online slot games. Most of the casinos, like Parx and SugarHouse, require you to have an account and be signed in to access any games. Hollywood, on the other hand, lets you play for free right off the site with no sign in required. 

What are the best free online slots?

Out of the hundreds of free online slots to choose from, here are a few of our favorites you’ll find in PA:

  • Siberian Storm 
  • Cleopatra
  • Butterfly Staxx
  • Dead or Alive 

You’ll find each game available at most online casinos in PA and can opt to play for real money at any point.

Online Slots terminology 

  • Paylines 
  • Reels 
  • Jackpot 
  • Free Spin
  • Symbols
  • Scatter
  • Reels 
  • AutoPlay
  • Multiplier
  • Max Bet
  • Min Bet


Paylines are the winning combinations offered in all online slots and vary from one to a hundred. To win money, you need to match different symbols on the appropriate paylines. The more paylines there are, the better. 


If you hit the jackpot on a slot game, it means you’ve just won a lot of money! Playing a progressive online slot could result in hitting a jackpot in the millions. 

Free spins

Free spins are bets you don’t need to pay for and only eligible to be used on online slots. They can be claimed from a special promotion by the casino, or a bonus round hit in the middle of gameplay. It's one of the most exciting features of slots because you can increase your bankroll using them!


Symbols are featured in every slot game and displayed on each reel. The idea is to match the symbols on different paylines to unlock bonuses and cash prizes. 


Scatter symbols often follow the theme of the slot and have a high worth attached. Hit enough of the scatter symbols and unlock different bonuses which lead to a bigger cash prize!


Reels are the vertical lines displayed on the slot machines and what holds your symbols. Every online slot has a minimum of three reels. 


Autoplay is a setting offered by online slot games that allow you to set a number of spins to go automatically. You can set autoplay for 10, 20, 50 plus, spins at a time, and stop at any point during gameplay.  


Multipliers can come in the form of a bonus feature or symbol. If hit, they can increase your bankroll substantially by multiplying it.

Maximum Bet

The maximum bet is the highest amount an online slot will let you wager per spin. This can range from $5 to $100, depending on the type of slot you have chosen to play. 

Minimum Bet

The minimum bet is the least amount you are required to wager per spin on a slot. Like max bets, the amount will depend on the casino and slot but usually start at 0.10 cents a spin. 


Online slots have come a long way since the classic slot machine found at the local casino! The game continues to adapt accordingly regularly. As the market grows, we see more animations, bonuses, and jackpots featured in slot titles. Make sure to read our online casino reviews to stay up to date on the latest new titles entering each game library! 


Online slots in Pennsylvania all use a Random Number Generator software, which means the outcome of every game is completely random. It is pretty much impossible for a casino rig a slot title as the PGCB monitors the industry very closely.

Of course! While different slots offer different odds, you can definitely find a lot of good titles with high payouts. Look for titles with a variety of bonus features to help your odds.

You can! Online slots are legal in the state of PA and there are currently over half a dozen online platforms to choose from.