Slots

Slots bonuses are the most popular of all casino offers. Online casino brands aim to bring Vegas to their players, and offer a range incentives, from free spins, no deposit bonuses or the promise of million dollar wins on progressive jackpots. Use our list to find the best slots bonus in the United States on , and to check out some of the best and biggest video slots in play right now!


Slots Bonus Offers

Slots are one of the most exciting games offered by online casinos. Only a handful of games allow players to win life-changing jackpots in a few seconds. With the rise of online casinos, slots have grown more and more popular; to such an extent that they now account for the majority of casino games available online. This guide will take you through everything you need to know on slots and online slots to become an expert and start rolling right away.

Top Slots

40 Joker Staxx jackpot
40 Joker Staxx
7's and Stripes jackpot
7's and Stripes
Age of Egypt jackpot
Age of Egypt
Age of the Gods jackpot
Age of the Gods
Age of the Gods: Fate Sisters jackpot
Age of the Gods: Fate Sisters
Age of the Gods: Furious 4 jackpot
Age of the Gods: Furious 4
Age of the Gods: Goddess of Wisdom jackpot
Age of the Gods: Goddess of Wisdom
Age of the Gods: King of Olympus jackpot
Age of the Gods: King of Olympus
Age of the Gods: Prince of Olympus jackpot
Age of the Gods: Prince of Olympus
Age of the Gods: Ruler of the Sky jackpot
Age of the Gods: Ruler of the Sky
Amazing Aztecs jackpot
Amazing Aztecs
Amore jackpot
Amore
Asgardian Stones jackpot
Asgardian Stones
Aztec Adventure jackpot
Aztec Adventure
Beach Life jackpot
Beach Life
BerryBurst jackpot
BerryBurst
Big Bad Wolf jackpot
Big Bad Wolf
Blood Suckers II jackpot
Blood Suckers II
Bonanza jackpot
Bonanza
Book of Crazy Chicken jackpot
Book of Crazy Chicken
Book of Dead jackpot
Book of Dead
Book of Gods jackpot
Book of Gods
Book of Ra jackpot
Book of Ra
Bubble Bubble jackpot
Bubble Bubble
Buffalo Blitz jackpot
Buffalo Blitz
Busted jackpot
Busted
Captain Venture jackpot
Captain Venture
Chariots of Fire jackpot
Chariots of Fire
Cherry Blossoms jackpot
Cherry Blossoms
City of Gold jackpot
City of Gold
Cleopatra jackpot
Cleopatra
Crystal Forest jackpot
Crystal Forest
Crystal Land jackpot
Crystal Land
Danger High Voltage jackpot
Danger High Voltage
Dead or Alive jackpot
Dead or Alive
Dolphin Reef jackpot
Dolphin Reef
Dragon Champions jackpot
Dragon Champions
Dragon's Luck jackpot
Dragon's Luck
Dynasty jackpot
Dynasty
Emoji Planet jackpot
Emoji Planet
Enchanted Garden II jackpot
Enchanted Garden II
Epic Ape jackpot
Epic Ape
Extra Chilli jackpot
Extra Chilli
Eye of Horus jackpot
Eye of Horus
Eye of the Kraken jackpot
Eye of the Kraken
Fairytale Legends Mirror Mirror jackpot
Fairytale Legends Mirror Mirror
Fairytale Legends Red Riding Hood jackpot
Fairytale Legends Red Riding Hood
Fast & Sexy jackpot
Fast & Sexy
Finn and the Swirly Spin jackpot
Finn and the Swirly Spin
Fishin Frenzy jackpot
Fishin Frenzy
Fortunium jackpot
Fortunium
Fruitoids jackpot
Fruitoids
Full Bloom jackpot
Full Bloom
Funky Chicken jackpot
Funky Chicken
Funky Fruits Jackpot jackpot
Funky Fruits Jackpot
Game of Thrones jackpot
Game of Thrones
Gem Heat jackpot
Gem Heat
Gemtopia jackpot
Gemtopia
Gladiator Games jackpot
Gladiator Games
Gladiator Jackpot jackpot
Gladiator Jackpot
Golden Gorilla jackpot
Golden Gorilla
Gonzo's Quest jackpot
Gonzo's Quest
Great Blue jackpot
Great Blue
Guns N' Roses jackpot
Guns N' Roses
Hall of Gods jackpot
Hall of Gods
Hotline jackpot
Hotline
Hugo jackpot
Hugo
Immortal Romance jackpot
Immortal Romance
Jack and the Beanstalk jackpot
Jack and the Beanstalk
Jackpot Giant jackpot
Jackpot Giant
Japan-O-Rama jackpot
Japan-O-Rama
Joker Strike jackpot
Joker Strike
Joker's Jewels jackpot
Joker's Jewels
Joker’s Jewels jackpot
Joker’s Jewels
Jumanji jackpot
Jumanji
Jungle Giants jackpot
Jungle Giants
Kaiju jackpot
Kaiju
King Cashalot jackpot
King Cashalot
King of Slots jackpot
King of Slots
Kings of Chicago jackpot
Kings of Chicago
Legend of Cleopatra jackpot
Legend of Cleopatra
Lucha Extreme jackpot
Lucha Extreme
Lucha Libre jackpot
Lucha Libre
Lucha Maniacs jackpot
Lucha Maniacs
Lucky Ladys Charm jackpot
Lucky Ladys Charm
Magic Shoppe jackpot
Magic Shoppe
Maji Wilds jackpot
Maji Wilds
Major Millions jackpot
Major Millions
Mega Fortune jackpot
Mega Fortune
Mega Fortune Dreams jackpot
Mega Fortune Dreams
Mega Moolah jackpot
Mega Moolah
MegaJackpots Cleopatra jackpot
MegaJackpots Cleopatra
MegaJackpots Golden Goddess jackpot
MegaJackpots Golden Goddess
MegaJackpots Isle O'Plenty jackpot
MegaJackpots Isle O'Plenty
MegaJackpots Siberian Storm jackpot
MegaJackpots Siberian Storm
MegaJackpots Star Lanterns jackpot
MegaJackpots Star Lanterns
MegaJackpots Wolf Run jackpot
MegaJackpots Wolf Run
Mighty Arthur jackpot
Mighty Arthur
Multiplier Man jackpot
Multiplier Man
Mystic Wolf jackpot
Mystic Wolf
Neon Reels jackpot
Neon Reels
Northern Sky jackpot
Northern Sky
Nova 7s jackpot
Nova 7s
Phantom Of The Opera jackpot
Phantom Of The Opera
Piggy Riches jackpot
Piggy Riches
Pirate Isle jackpot
Pirate Isle
Playboy jackpot
Playboy
Queen Winter Wins jackpot
Queen Winter Wins
Raging Rhino jackpot
Raging Rhino
Ramesses Riches jackpot
Ramesses Riches
Reactoonz jackpot
Reactoonz
Redbeard and Co jackpot
Redbeard and Co
Reign of Gnomes jackpot
Reign of Gnomes
Rich Wilde and the Book of Dead jackpot
Rich Wilde and the Book of Dead
Rise of Poseidon jackpot
Rise of Poseidon
Sakura Fruits jackpot
Sakura Fruits
Secret Jungle jackpot
Secret Jungle
Secrets of Atlantis jackpot
Secrets of Atlantis
Secrets of the Phoenix jackpot
Secrets of the Phoenix
Shanghai Lights jackpot
Shanghai Lights
Sherwood Forest Fortunes jackpot
Sherwood Forest Fortunes
Silver Lioness 4x jackpot
Silver Lioness 4x
Silver Unicorn jackpot
Silver Unicorn
Snow Wonder jackpot
Snow Wonder
Snowmania jackpot
Snowmania
Sparks jackpot
Sparks
Spin Party jackpot
Spin Party
Spy Game jackpot
Spy Game
Starburst jackpot
Starburst
Stardust jackpot
Stardust
Sugar Rush jackpot
Sugar Rush
Super Massive Respin jackpot
Super Massive Respin
Super Monopoly Money jackpot
Super Monopoly Money
Terminator Genisys jackpot
Terminator Genisys
The Emirate jackpot
The Emirate
The Mask of Zorro jackpot
The Mask of Zorro
The Matrix jackpot
The Matrix
The Three Stooges Brideless Groom jackpot
The Three Stooges Brideless Groom
Three Kingdom Wars jackpot
Three Kingdom Wars
Tiki Paradise jackpot
Tiki Paradise
Trip To Japan jackpot
Trip To Japan
Twin Spin jackpot
Twin Spin
Twin Spin Deluxe jackpot
Twin Spin Deluxe
Vegas Mania jackpot
Vegas Mania
Vikings Go Berzerk jackpot
Vikings Go Berzerk
Vikings go to Hell jackpot
Vikings go to Hell
Warlords Crystals of Power jackpot
Warlords Crystals of Power
Wild Heist jackpot
Wild Heist
Wild Heist at Peacock Manor jackpot
Wild Heist at Peacock Manor
Wild West jackpot
Wild West
Wolf Gold jackpot
Wolf Gold
World of Oz jackpot
World of Oz
Zeus 1000 jackpot
Zeus 1000
Zoom jackpot
Zoom

A Brief History Of Slot Machines

The history of slots goes all the way back to the late 19th century, when the first slot machines were designed and produced by Charles Fey, an American engineer living in San Francisco. His “Liberty Bell” machine contained three reels with five symbols each: diamonds, hearts, spades, horseshoes and a bell. This machine found immediate success and could be seen as the starting point of the slots odyssey. Throughout the first half of the 20th century, they have populated most land-based casinos in the United States and the rest of the world.

The first electromechanical slots saw the light of day in the 1960’s, but players had to wait until the late 1970’s to find what we now call a video slot. These machines grew more and more popular among casinos when it became economically viable to install slots with digital display. This video slot technology was quickly acquired by International Gaming Technology, that is now a leading online slot developer.
The internet revolution transformed the slots universe by liberating game designers from physical constraints. Ambitious developers such as NetEnt or Microgaming started creating some five- or six-reels slots, with crazy bonuses, free spins, and even progressive jackpots. All of these slot features and casino bonuses will be thoroughly analyzed in the following sections.

Slots Types

Physical vs Online Slots

As it has been stated above, online slots have the advantage of doing away with mechanical engineering constraints. But it is also important to remember that the line between online and land-based is not as clear cut. For instance, this liberation process had also started with the creation of video slots in the late 1970’s. Here are the main differences between playing traditional “physical” and online slots:

  • Choice: Because online casinos are not limited by real estate or the cost of new machines, a single online casino could provide its users with several hundreds of different slots.
  • Variety: In the online casino industry, slots are developed by a growing number of talented developers such as Microgaming, NetEnt, Playtech, or even smaller labels such as Yggdrasil or WMS. Thanks to this large number of creative minds, online slots fans will be able to experience different gameplays and designs.
  • Higher RTP: The RTP (or “Return to Player”) describes the percentage of bets that a certain slot will pay back to its players over time. Because land-based casinos must cover a large variety of costs (maintenance, security, real estate…), they tend to propose slots with a lower RTP, and retain a higher percentage of players’ wager. Online slots’ RTP could rise far above 95%, granting the casino a lower edge than American Roulette.
  • Higher Progressive Jackpots: As it will be described below, online progressive slots are linked to large scale jackpot networks and pools. This explains why online progressive jackpots could easily reach millions of dollars, something that would be unthinkable in land-based casinos.
  • Generous Welcome Bonuses: Because online casinos do not benefit from a physical, geographical presence, they are encouraged to propose large welcome bonuses to attract new players. These bonuses are a great way to start playing with a healthy bankroll.
  • Mobile gameplay: One of the main advantages of online slots is that they can be played anywhere, at any time. Be it a desktop computer or a smartphone, you will be able to start rolling in a few clicks.

Fruit Machines

Fruit machines could be found in land-based and online casinos, but also in bars, pubs and amusement parks. These simple, three reels slots have symbols that have now become famous such as the cherries, the seven or the “BAR”. Fruit Machines are the relics of late 19th century slots and are often chosen for the simplicity of their gameplay. Many nostalgic players will be happy to find these “retro” or “vintage” games on most online casinos today.

Video and 3D Slots

Video slots were created in the 1970’s, but it is only with online casino that they reached their full potential.

In the early 2000’s, game developers even started applying the advances of 3D animation to online slots, giving birth to 3D slots. Because there are no limits to these firms’ innovation spirit, slots players will soon be able to find Virtual Reality slots in all of their favorite online platforms. Video and 3D slots are characterized by a creative gameplay featuring slot bonuses, free spins, wild cards and scatter symbols.

The theme of these video slots is usually inspired from popular culture and famous movies. So, if you want to start playing on Jurassic Park or Indiana Jones slots, video slots are the way to go.

Here are the main differences between video and 3D slots, and fruit machines:

  • Creative themes: Video slots moved away from the traditional 7’s, cherries or BAR, to create a new online gaming universe based on famous movies and popular culture.
    More reels and paylines: Because video slots developers are free from physical constraints, they can include five or even six reels, with more than 20 symbols. These new designs allow a higher number of possibilities and sky-high jackpots.
  • Free spins: Many video slots allow players to win both cash and free spins. Most players will appreciate this exciting way to stay in the game and try again.
  • Scatter and Wild Symbols: In traditional fruit machines, symbols had a mechanical relation with one another. The jackpot was only triggered by a predetermined combination of symbols. Because video and 3D slots are ruled by a computer programs, their gameplay can be more sophisticated. For instance, some “Wild” symbols can act as win multipliers.

Progressive Jackpots

Progressive jackpots are one of the most exciting innovation brought by internet gaming. Progressive slots preexisted the rise of internet casinos, but it is only thanks to massive online progressive networks that jackpots can reach millions of dollars.

In simple words, a progressive jackpot is a jackpot that increases each time that the progressive slot is played and that the jackpot is not won. The way this works is that a percentage of each player’s wager goes directly to the jackpot pool until a lucky user takes it all. And with networks of several thousands of slot machines, progressive jackpots could quickly reach millions of dollars.

Progressive slots are one of the few games allowing users to win a life-changing amount of money in the click of a button. And every online casino gambler likes a quick hit once in a while.

Free Spins / Free Play

Free play is usually given by online casinos to new players as a part of their welcome bonus. It is also occasionally used to promoted a new game. It allows you to play slots without wagering a cent and still cashing in the wins, in other words, to play slots for free. Of course, these bonuses are tied to specific terms and conditions that must be checked before creating an account.

Free spins – What is better in online gaming than the excitement provided by free spins? A free spin is, as its name suggest, a spin on a given slot or set of slots where no stake is required. Once again, thanks to these slot bonuses, you could win a jackpot without wagering a cent.

Game Developers

In the online casino industry, online casinos take care of the marketing, customer service, and gaming platform design. However, game development is left to a handful of highly skilled developers that have by now created thousands of exciting slots to choose from. Here is a short description of each member of the online casino games development Trinity: Microgaming, NetEnt and Playtech.

Microgaming

This name will certainly ring a bell for online casino aficionados. Microgaming was established in 1994 and is one of the leaders of the industry. It is extremely famous for its creative video slots and incredible progressive jackpots. In fact, one of the highest wins of online casino history was realized on the Microgaming slot Mega Moolah, an iconic progressive slot that will be analyzed below.

NetEnt

NetEnt, also known as “Net Entertainment” before May 2015, is another leading online casino software developer. It was established in Stockholm in 1996. NetEnt is known for its high-quality design and simple gameplay. Most gambling experts might have already tried their luck on blockbuster slots such as Gonzo’s Quest, Dead or Alive, or finally, Starburst.

Playtech

Playtech was founded in 1999 and has since then become a leader of the online casino industry. Thanks to the acquisition of smaller companies such as Quickspin, Best Gaming Technology or BetBuddy, it has managed to gather a team of expert engineers to create a high-quality gaming experience.

Biggest Slot Win

Progressive jackpots have changed dozens of online gamblers’ lives in the click of a button.

Imagine having fun on a slot machine on a Friday night and hitting the million dollar jackpot. This is certainly what Jonathan Heywood could have felt by winning €17,879,645 in a single spin on the Microgaming progressive slot Mega Moolah. These progressive jackpots keep increasing as online casinos gain more momentum and increase their number players. In other words, the history of progressive jackpots still has to be written, and anyone can be part of it.

Visit out Jackpots page for a full list a big slot winners.

Coming up with a list of the most popular or the best online slots is an impossible task. No list can fully capture the diversity of online casino slots and each player’s tastes. In this section, you will still find five iconic online slots that any online gamer should try at least once in his/her life.

Progressive Slots

Mega Moolah

Mega Moolah might well be the most famous slot machine on the market, thanks to its reputation of “millionaire maker”. Indeed, this five-reels video slots designed by Microgaming has changed the lives of dozens of lucky gamblers. Inspired by the savannah universe with “wild” lions and “scatter” monkeys, Mega Moolah is certainly a game every slot fan should try once in his/her life.

Hall of Gods

Hall of Gods is NetEnt’s most famous progressive jackpot. This five-reels video slot inspired by the theme of Northern mythology features 20 paylines and can be proud of a 95,5% RTP! So, if you are feeling like a Viking and are ready to start playing for a multimillion progressive jackpot, Hall of Gods is a great place to start.

Video Slot

Jurassic Park

This five reels Microgaming slot is inspired by the iconic blockbusters Jurassic Park. With 243 paylines, wild and scatter symbols, and state of the art video animations, fans of the Spielberg saga will not be disappointed. Hunt the T-Rex symbols for incredible jackpots!

Starburst

Starburst is a simple and very entertaining slot developed by NetEnt. This five-reels slots only features 5 reels and 10 paylines. If you just want to relax with a fun slot, Starburst might be your best pick. You will simply have to sit back and hunt colored gems combinations to win big.

Slots Pro Tips

  • Play online: It is cheaper and will allow you to benefit from generous welcome bonuses and thousands of exciting slots to choose from.
  • Choose your online casino carefully: All online casinos are not equal. Use the reviews featured on this website to find the best possible casino bonuses and welcome offers.
  • Claim welcome bonuses and regular deals: Because why not?
  • Select the right slot machine: The first step in this process is to know your own tastes. Some players will prefer to start spinning traditional fruit machines whereas others will prefer to try their luck at multi million progressive jackpots. Then, the only way to be sure is to explore and discover new slots everyday on your favorite slots casino.
  • Know the rules: This goes without saying but many slots games have a very precise set of rules. For instance, to be eligible to some progressive jackpots, players must wager above a predetermined amount.
  • Play within your budget: Because the most important part in all your gaming experience is to have fun!

Bottom Line

To sum up this guide, slots are a lot of fun. With thousands of different games to choose from, generous slot bonuses, and multi-million progressive jackpots, the slots universe is filled with endless possibilities. To start spinning in a few clicks, visit one of the casinos featured in the list above and claim some great casino bonuses.