Online slot games are by far some of the best and most exciting casino games available to online players. Offered by nearly every top online casino site, there are thousands of slot game titles to choose from and there are some clear favorites that players go back to, time and time again.
In this article, we aim to break down some of our favorite online slot games, special features, help you understand what RTP is, and also provide some excellent online casino bonuses!
Casinos that Offer the Best Online Slot Games
- Caesars Casino - ALLINHOOPZ2500
- High 5 Casino - 600 Diamonds + 5 FREE SC and 250 Gold Coins
- Stake.us - NDSTAKEUS
- WOW Vegas - 35 FREE Sweeps Coins + 1.5M WOW Coins
- BetRivers - CASINOBACK
- Chumba Casino - 2M FREE Gold Coins + 2 Free Sweeps Coin
- PokerStars Casino - 100% Match Deposit up to $600
- Vegas Gems - VEGASPROMO
21+ Please Play Responsibly.
Slot Game Welcome Offers
Let's take a look at some of the top online casino welcome bonuses. You can use these to play on some of the best online slot game titles.
| Online Slot Site | Welcome Offer | Promo Code |
| Caesars Casino | 100% Match up to $2,500 + 2,500 Reward Credits with $25 Deposit | ALLINHOOPZ2500 |
| High 5 Casino | 600 Diamonds + 5 FREE SC and 250 Gold Coins | |
| Stake.us | Get 250,000 GC and 25 Stake Cash | NDSTAKEUS |
| WOW Vegas | 35 FREE Sweeps Coins + 1.5M WOW Coins | |
| BetRivers | 100% of Losses in First 24-Hours Back up to $500 | CASINOBACK |
| Chumba Casino | 2M FREE Gold Coins + 2 Free Sweeps Coins | |
| PokerStars | 100% Match Deposit up to $600 | |
| Vegas Gems | Get up to 1,000 Gems on sign-up | VEGASPROMO |
Best Onlne Slot Games for US Players
Sweet Bonanza Slot
RTP: 96.48%Theme: Candy
Best Casino: WOW Vegas
Max Win: 21,100x Bet
Provider: Pragmatic Play
A fantastic and colorful online slot game, and a mega favorite for thousands of players. Sweet Bonanza is a 6-reel, 5-row slot game and allows players to form winning sequences from direction.
Players have the chance to hit 21,100x your original bet places on the slot. Symbols can pay anywhere on the screen and players can also gain a random multiplier up to 100x in free spins.
Gates of Olympus Slot
RTP: 96.50%
Theme: Ancient Greece
Best Casino: Caesars Casino
Max Win: 500x Bet
Provider: Pragmatic Play
A fantatic theme for an online slot game. This Ancient Greek slot, Gates of Olympus, is as mighty as Zeus himself, with players taking on the 6x5 slot grid. This fantastic video slot game has paylines that pay in clusters of 8. There are 4 symbols on this game that players can land, taking on the value of up to 500x.
Eye of Horus Slot
RTP: 96.30%
Theme: Ancient Egypt
Paylines: 10
Max Win: 10,000x
Provider: Reel Time Gaming
Three or more Pyramids will trigger 12 free games for players in the Eye of Horus slot game. This highly popular online slot offers 10 paylines and a max payout of 250,000. With a great RTP for players at 96.30%, players can enjoy this Egyptian themes game with free spins and casino welcome offers.
Devine Fortune Slot
RTP: 96.59%
Theme: Mythical
Best Casino: PokerStars Casino
Max Win: 200x Bet
Provider: NetEnt
Divine Fortune slot is a fantastic mythical themes game for players looking to play a 5 reel, 3 row slot. With 20 different paylines, this game provides mulitple ways for you to win and hit great jackpots at the same time. If you are looking for free spins, this game is great for you. 3 Scatters gives players 5 free spins, 4 Symbols gives players 8 free spins and 5 Scatters allow players to earn 12 free spins!
Starburst Slot Game
RTP: 96.09%
Theme: Retro Arcade
Best Casino: PokerStars Casino
Paylines: 10
Provider: NetEnt
This exciting retro online slot game is simple, yet full of fun and quality. A bright and engaging slot, some of the best features of this slot game include expamding wilds and free respins for players. This is a 5 reel, 3 row slot machine, and players can win on any of the 10 paylines available. This game can be found on PokerStars, as well as many other top casino sites.
Real Money Online Slots vs Free to Play Slot Games
Playing online slots games for real money is no doubt a fantastic feature for players. It allows players to play for huge jackpots, free spins and in some cases, players can climb the casino leaderboards. Free play slot games are unique in themselve, they offer the chance to play the best online slot games, try out new version and also win some cool prizes. The main differences being you cannot win huge jackpots or cash prizes.
Let's look at some of the pros and cons for both:
Real Money Online Slots
| Pros ✅ | Cons ❌ |
| Available to free spins and welcome bonuses | Chance of losing money |
| Chance to win huge jackpots | Potential time delay on withdrawals |
| Progressive jackpots available |
Free to Play Slot Games
| Pros ✅ | Cons ❌ |
| No deposit required to play | Cannot win real money |
| Great chance to try new slot games | |
| Exciting slot game titles from top providers |
How we Choose the Best Online Slots
Here is the criteria we stick to when it comes to picking the best online slot games. Above are 5 of our favourite games, but that doesn't mean they are they only slot games we rate.
Volatility
What is volatility? This is simply the frequency in which an online slot game pays out. You will find that most slots have some form of variance or volatility and this will differ sometimes. Slot games that have a high variance are likely to pay out larger totals, however, the downside of this is that the volatility is lower, paying out less frequently. With low variant slots, the payouts are smaller, but the payouts are more frequent.
RTPs (Return to Player)
RTP, or Return to Player percentage is in theory the avergage return that is paid out to the player. Players typically look for good RTP slots when playing online, and during our research, we recommend slots that are 95% or higher. The best online casinos tend to offer slots that are above this figure, such as Sweet Bonanza with a 96.48% RTP.
Game Theme
Game theme is a massive attraction for online casino players. Online slot games come in all shapes and sizes, and that is part of the fun. Nothing is more boring that playing a dull and repetitive game, so with fantastic themed slots there is plenty of entertainment available. Some of the best slot themes include, Egpyt, Greek, Retro Arcade and Mythical style slot games.
Availability
The big question is, where can you play these online slots? If you like the look of an online slot game, it would be great if you can find it on multiple casino sites. Being able to sign up to a range of casinos and access some great casino welcome bonuses could be a huge hit for players. Players can also claim some great no deposit bonuses as well.
Different Types on Online Slot Games
Classic Slots
The most recognised casino game in the book, the classic 3x3 slot is a great way to enjoy some simple but fun gameplay. There are no bonus features, scatters and there are few paylines with these.
5-Reel Slots
When it comes to playing online slots, this is what you are most likely to see. The 5-reel slot game allows players to hit some excellent bonus features, mulitple paylines and also aquire some free spins.
6-Reel Slots
Much like the 5-reel slot, the 6-reel offers even more paylines and even bigger jackpots. Adding hundred of extra paylines for players to try and hit, the 6-reel slot is an exicitng new variant.
Brand Themed Slots
Brand themed slots allow players to expience some of their favorite online TV shows or Movies. You may find that some top brand video slots contain audio from the show itself and contains some of the best characters around. Some great TV theme slots include, Jurassic Park, Gladiator, Game or Thrones and Narcos, just to name a some.
Progressive Jackpot Slot Games
Progressive slots are exciting for all players. This is where a jackpot grows with every bet or wager placed on a specific slot game. Sometimes you can see a jackpot spread across mulitple online casinos to create a large jackpot total.
Often players may have to place a max bet in order to have a chance at hitting the progressive total. This is a very hard jackpot to win but often these involce a considerable sum of money. The overall jackpot continues to grow and get bigger until someone claims it from spinning the correct combination.
Some of the best progressive jackpots include:
- Mega Moolah Megaways - GameBurger
- Age of the Gods: King of Olympus Megaways - Playtech
- Jackpot Giant - Playtech
- Divine Fortune Megaways - NetEnt
- Mega Jackpots Cleopatra - IGT
What do the Best Slot Sites Offer?
Choosing between online slot sites and land based casinos can be tough, but here are some key factors as to why we rate online casino sites.
Higher RTPs
Players can often find higher RTPs (return to player percentage) at online slot sites. An online slot game is considered to have a good RTP if it is above 95%.
Play on Mobile
Playing on mobile is a fantastic way to access your favorite online slots and casino sites. Players will be able to play all of the casinos in this article on iOS and Android devices, with many of them even having downloadable apps for players.
Gaming on the Go
Being able to play from the palm of your hand means you can play on the go, when you are outside of your own house. Players no longer need to travel to a phyical casino, and can also play at any time they wish. There are no closing times at an online casino site.
Free Spins and No Deposits
Free spins no deposit are one of the best online casino bonuses around. Players love signing up to a new casino and being credited fantastic promotions, and whats better than being able to try out new slot games with a free spins bonus. Sometime free spins are only available on certain slot titles, so be sure to look at the T&Cs of the offer.
Online Slots Software Providers
There are many software providers that help to generate some of the best online slot games, but here are a handful of some of our favorite game developers right now and some of the top games provided by them.
IGT
Mega Jackpots Cleopatra, 7s Wild, Double Diamond, Queen of Olympus, Magic Wishes.
NetEnt
Starburst, Gonzos Quest, Rage, Dead or Alive 2, Good Old 7s, Divine Fortune.
Pragmatic Play
Pot of Fortune, Sweet Bonanza, Gates of Olympus, Big Bass Bonanza, Wheel O' Gold.
Reel Time Gaming
Eye of Horus, Cleopatras Gold, Enchanted Garden, Aztecs Treasure, Aladins Wishes.
Playtech
Age of the Gods, Jackpot Giant, King of Olympus, Furious 4, Fate Sisters.
How to Sign-up to an Online Slot Site
Signing up for a new account at an online casino has never been easier. Be sure to follow our simple steps below on how to sign-up:
- The first step is to choose an online slot site. When you have done this, click our link and head to the page.
- Create a unique username and ensure you use a safe password for your account.
- On occasion, you may be asked to provide photographic ID for security reasons. To play online casino in the US, you must be 21+.
- In the process, the casino you have chosen may allow you to input a bonus code. Do this now and this will help to activate any welcome offer for you.
- Verify your account via email, and once this is done, you will be able to play.
- Make sure to read the T&Cs of any welcome offer. You can now complete any requirements for the offer and be on your way to claiming some fantastic casino bonuses.
Related Casino Posts
If you would like to check out some of our other top casino posts and reviews, you can some great options below:
- Stake.us Promo Code
- WOW Vegas Review
- Best Blackjack Casinos
- Chumba Welcome Offer
- Online Roulette Sites
FAQs
Who can play online slot games?
Players aged 21+ in the United States can play online slot games. Legal states for real money casinos in the US include, Michigan, New Jersey, Pennsylvania, Connecticut, and West Virginia.
What is slot volatility?
Volatility and variance is the frequency that an online slot pays out to the player. A slot game with high-variance tend to payout larger jackpots and winnings, but these are not frequent. Low-variance slot games tend to payout smaller totals, but more frequently.
Can I play online slots for real money?
Yes, players can win real money at online slot sites. As well as this, you can also earn excellent leaderbaord prizes for playing online slot games. Players at social casinos, however, can only earn cash prizes and rewards, not real money, from slot titles.
What is RTP?
RTP, or Return to Player, is the percentage ammount in which an online slot game returns winnings to the player. Players consider a good RTP percentage to be between 95-98%.
What is a payline?
A payline is typically the combination of slot symbols that create a win. the number of paylines will vary depending on what slot title you are playing. Paylines are usually horizontal, or diagonal and can affect the games volatility, depending on how many paylines are available in the game.
Do online casinos offer free slots?
Yes, online casinos offer free slots. Real money casinos, such a Caesars Casino, will offer slot demos for you to practice before playing the real thing. If you are looking for free to play casinos, like WOW Vegas, or Stake.us, you can play for free in return for cash prizes and SC.
21+ Please Gamble Responsibly. Gambling Problem? Call or text 1-800-GAMBLER
