Slots are one of the most played games in online casinos, which is not surprising to anyone who has played slot games. When invented over 100 years ago, slot games machines operated on gears and card systems. They had thrilling games with fun themes, lively music, flashing lights, and big payouts! 

Today, online slots have added extra happiness to the gaming experience. So, do you like slot games? Below is a list of the 5 most popular online slot games globally.

  1. Starburst
  2. Bonanza
  3. Book of Dead
  4. Thunderstruck II
  5. Gonzo’s Quest

Read on to find out more about these online slot games and find the best free slots online.


Created by NetEnt in 2012, Starburst is one of the most popular and classic slots games worldwide. This slot is a timeless masterpiece that remains enjoyable today.

Starburst is one of the most played slots. Its dynamic 3D effects, cool soundtracks, and space themes appeal to many players. Most of the best online slots sites highly recommend this game to the player.

NetEnt has designed this simple 5×3 grid to provide hours of fun. Players aim for the stars while watching the shining jewels spin around the reels. It has an RTP of 96.09% with low volatility.


Created by Big Time Gaming in 2016, Bonanza features a gold mine theme, with 6 reels and up to 117,000 prizes. 

It has up to 7 symbols on every reel and pays most for at least 3 adjacent matching symbols from left to right. The jackpot amount is 120,000 coins.

You will be surprised whenever you open Bonanza. This game is perfect if you want to play and win in various ways.

Book of Dead

Created by Play’n GO in 2014, Book of Dead introduces a wonderful Egyptian theme with young explorers looking for ancient treasures. The graphics are well crafted, seamlessly blending with wins and bonus rounds with screen changes. Its foggy edges give a mysterious feel to the game.

Its mechanism infuses the classic design of slot games with an even high-end slot player experience. In addition, this slot has a great adventure theme and amazing features proving that not all games require jackpot slot facilities to be highly entertaining.

It’s 5-reel, 3-row slots have a total of 10 adjustable pay lines with up to 250,000 prizes. It has an RTP of 96.6% with high volatility. 

Creating a winning combination is about stringing 3 or more symbols together along a winning pay line. The pay line patterns and paytable can be accessed through the game menu.

Thunderstruck II

Created by Microgaming in 2010, Thunderstruck 2 is one of the most famous and popular slots in history. It is the remastered version of the original Thunderstruck. In addition, this game features Norse mythology themes.

The first Thunderstruck is a bit flimsy. But the latest one suits the theme more and adds a feeling of mystery. Thunderstruck II has 243 ways to win, 4 free spin bonuses, and more features.

This game has an RTP of 96.65 %, with high volatility. You can earn up to 8000x your bet in Thunderstruck II.

Gonzo’s Quest

Created by NetEnt in 2011, Gonzo’s Quest is simple and easy to play, which is one of the reasons for its popularity. This game is set on a 5×3 grid with an ancient Inca city theme.

Inspired by the historical figure Gonzalo Pizzaro, Gonzo’s Quest slot features an entertaining 3D animation of an explorer who set out to find the fictional lost golden city of El Dorado.

Seven stone symbols will appear in this slot, each paying a different amount. For example, if you have the 5 highest symbols, you will be paid up to 125 times your stake.


Playing online slots is a great way to have fun and kill a few hours. The slot games on this list are the most popular and fun. You can try your luck and see if you win.

Indeed, there are plenty of types of slot machines with vast games collections to enjoy, but only a handful can make you a profit. However, it’s your preferences as a player that will significantly influence your chances to win.


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