7 Popular Online Slot Themes


If you’re the kind of person who enjoys playing slot machines, or if you want to learn more about them and expand your knowledge, you’ve come to the right place. Online slot machine games are available for free play or real money as part of online casinos.

Let’s take a look at the 7 most popular online slot themes that are well known within the slots circles.

Book of Dead

Learn more about Book of Dead and developer Play’n Go if you are interested in getting details about this slot. For the gist of it, here it is. Historical-themed slots, whether based on actual events or famous legends, have always been attractive to slot players regardless of their choice of casino—land-based or online. Book of Dead is among the more popular picks for those who prefer to immerse themselves in the mystery of ancient Egypt. This online slot offers 5 reels and 10 pay lines.


Cleopatra is no legend, but the Greek-born Egyptian pharaoh has been mystified throughout history, and her persona has been subject to innumerable fictional tales and scientific research. So, no surprise that the Cleopatra theme is well-known worldwide. IGT’s slot offers 5 reels with 20 pay lines, bringing the classic slot feel with a modern twist.

Rome: Golden Age

Let’s conclude the historical slots theme with something from Rome—Rome: Golden Age. Here Netent takes players into a time machine back to the times of gladiators and fearless warriors that spread their empire from Europe to Africa. There are 5 reels and 20 pay lines on this online slot, and all features you can expect from a good slot like bonus symbols and free spins.


History remembers even more recently when battling it out was the way to resolve disputes. However, this time, we travel back to the Wild West, thanks to the Deadwood slot. No Limit City has built this game with 5 reels, and players can get 8 free spins if they get the 3 Scatter symbols.


Futurists also have plenty to choose from in the online slots world. One of the most popular titles is by Netent and goes by the name of Starburst. Time travellers can leap ahead with this 5 reel, 3 row, 10 pay line online slot, which is undoubtedly among the most recognisable looks among slot players. Netent has really done a fancy job with this one, creating a unique and immersive intergalactic experience.

Hypernova 10K Ways

RealPlayer also brings slot players on an unforgettable journey across space with some imagination. In fact, Hypernova 10K Ways is only one in a series of online slots under the Hypernova title. Even novice slot players will be pleased to know that 10K Ways offers a straightforward gameplay experience but still brings all that is expected from an online slot.

Who Wants To Be A Millionaire

Let’s conclude with something quite different from the rest. Who Wants To Be A Millionaire is globally recognised as a truly great show, especially for curious people. Thanks to Big Time Gaming, the show’s theme is also available as an online slot. Unlike most traditional slots, this one offers 6 reels. There are bonus symbols, free spins, and even lifeline gambles that give players the chance to experience closely what it feels like to stake your chances on somebody else’s answer.

There are many kinds of slot machine games depending on how they look, how many reels and combinations they offer, etc. Each of them can bring a unique experience and make the otherwise familiar slots gameplay into something special. These slots are made by different developers, but they have all managed to become a mainstay in the online casino industry.

Header image credit: Carlos Gonzalez via Pixabay

Last modified: July 27, 2022

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