What makes a particular slots game popular? It could be anything:   Big payouts. Lots of little payouts. Fun game play. Great graphics.

If you’re just starting out, knowing which games are popular matters because you’re less likely to have a losing program burn you if you begin by playing the most popular slots at the world’s best online casinos.

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About Online SlotsWhat Are the Most Popular Online Slots Games

We combed through a bunch of industry insider lists to find the most popular online slots. Since they all use different criteria, they each arrive at different results. We then combined the top results across the variety of these industry lists to bring you the top five online slots games. Not surprisingly, the most popular online slots are also among the most popular casino slots.

You definitely will find a slot game (or three) that suits you amongst our list of the five most popular online slots games. But be smart – play for free until you have a good understanding of how your chosen game works. All of these games offer a free online version that you should try before betting real money.

1. Gonzo’s Quest

Introduced by NetEnt in 2010, Gonzo’s Quest rocketed to the top of the popularity charts and has dominated the top positions on industry lists ever since. The game features genuinely fun game play, superb computer-generated imagery (CGI), and some pretty big payouts. It shouldn’t take you long to hit a payout of a thousand coins or more.

Unlike other slots, game play in Gonzo’s Quest does not involve spinning symbols. Rather, the symbols fall as stone blocks. A win will cause the winning symbols to “explode” and generate another “avalanche” of symbol blocks. Each avalanche increases the payout multiple until you hit a big win after three winning avalanches. The free spins, called “free falls,” are genuinely fun to play. In fact, they’re probably the most fun free spins in the industry.

Winning on Gonzo’s Quest Slot Machines: The big payouts come only in the “free fall” rounds. Play intelligently, as you can burn a lot of bankroll before hitting one.

Gonzo’s Quest Statistics

• Type: Video slots
• Payout: 96.1%
• Win: 40.6%
• Volatility: High
• Paylines: 20
• Free spins: Yes
• Bonus game: No
• Scatter: Yes
• Wild: Yes
• Jackpot: 2500x / 50,000 coins max
• Devices: PC / Tablet / Mobile

2. Starburst

Low volatility, high payout, and simple game play make Starburst the ideal game for beginners and slot junkies alike. Starburst is frequently found in the top position of industry lists.

The standout feature in Starburst is the wild symbol. This symbol appears only on reels 2, 3, and 4; however, if it appears, it triggers a re-spin of every other symbol. If another wild appears, you get another re-spin, and so on until there are three wilds.

Winning on Starburst Slot Machines: The modest Starburst jackpot is not going pay off your mortgage, but it remains the online slot of choice for those looking for a simple, dependable run of modest payouts.

Starburst Statistics

• Type: Video slots
• Payout: 96.1%
• Win: 22.5%
• Volatility: Low
• Paylines: 10
• Free spins: Yes
• Bonus game: No
• Progressive: No
• Scatter: Yes
• Wild: Yes
• Jackpot: 500 x max bet only / max lines selected
• Devices: PC / Tablet / Mobile

3. Rich Wilde and the Book of the Dead

Occupying the number two position on most industry lists, Play’n GO’s Rich Wilde and the Book of the Dead dominates brick-and-mortar casinos and online casino lobbies alike. Fast and fun, this slot rivals Gonzo’s Quest in its enjoyable game play.

While you can go a long time without a win, this game packs an exciting punch with its expanding scatters. The scatter – a book symbol – is also the wild. If it appears three times, it triggers the free spins. But it also triggers one of the symbols to “expand” to fill all the paylines if it appears in any payline. If you like big payouts and the fireworks that go with them, nothing beats the expanding symbols!

Winning on Rich Wilde and the Book of the Dead Slot Machines: The base game wins tend to be very small. The big wins show up in the free spins and the bonus gambling round after each win, and these wins can be spectacular; however, to chase those wins, you will likely have more than one bankroll demolished.

Rich Wilde and the Book of the Dead Statistics

• Type: Video slots
• Payout: 96.6%
• Volatility: High
• Paylines: 10
• Free spins: Yes
• Bonus game: Yes
• Progressive: No
• Scatter: Yes
• Wild: Yes
• Jackpot: 5,000 x bet
• Devices: PC / Tablet / Mobile

4. Cleopatra

ITG’s Cleopatra is a veritable antique among online slots, having first appeared in 2005. Somehow, year after year, it sits atop the industry popularity lists, even though its manufacturer, ITG, has released a sequel.

Why is this slot game so popular? Cleopatra is a low volatility, simple game that plays well on PCs and tablets. Although it’s only a basic slots game, the symbols are genuinely interesting, and it looks great. Its basic game play, compelling graphics, and generous free spins and multipliers make it the game of choice for beginners.

Cleopatra Slot Machines Info: Truth be told it’s not very fun. Other than having very pretty graphics, it’s just an ordinary slot machine. However, Cleopatra continues to top the online charts because beginners love it.

Cleopatra Statistics

• Type: Video slots
• Payout: 95.02%
• Volatility: High
• Paylines: 20
• Free spins: Yes
• Bonus game: No
• Jackpot: 10,000 x
• Devices: PC / Tablet / Mobile

5. Thunderstruck II

Since its introduction in 2010, Microgaming’s Thunderstruck II has always ranked among the online slots games to play. With its gigantic jackpot (2.4 million coins) and veritable crowd of free spins and games, Thunderstruck just keeps bringing in player after player.

Thunderstruck II Slot Machines Winning and Tips: When the giant jackpot is factored out, the payout plunges to a dismal 70%. In addition, many of the free rounds do not include high value symbols. The free spins make the game exciting, but the low payouts on free spins make the game a bit expensive for newbies.

Thunderstruck II Statistics

• Type: Video slots
• Payout: 96.65%
• Volatility: Medium
• Paylines: 243
• Free spins: Yes
• Bonus game: Yes
• Jackpot: 2,400,000 coins
• Devices: PC / Tablet / Mobile