Best Online Slot Machines in 2021

online slot machines

The casino industry is growing rapidly and people are changing their gambling habits switching to new games that provide more entertainment. It seems that we are in the most creative era of games where we have a lot of new, exciting to play slots, which are becoming very popular, especially with the younger generation.

Software developers are now creating unique, and fun to play games that can provide hours-long entertainment and at the same time, can earn you some money. That’s why in today’s article we will highlight some of the best slot games for 2021.


This is one of the slot games that really stand out from the crowd, thanks to its unique reel layout and playstyle. This machine comes with 2 separate sets of reels, where one is 5×4 and the other 5×12 just to maximize your winning chances.

On top of that, it has some impressive visuals centralized in ancient Roman times where your quest is to become the best gladiator in the arena.

These slot machines have high payouts with a 95.94% return to the player and more than 100 ways to win. It is one of the most popular online slots in 2021, and it received a high rating on most review websites.

Click here if you want more information about Spartacus slot machine review, payout, and bonus to play online.

Gonzo’s Quest Megaways

Here we have another very fun to play slot game developed by the one and only NetEnt. This is one of the most popular online slots ever created, and there is a good reason for that. NetEnt started using Megaways technology and updated the game by adding more ways to win high prizes.

Apart from that, nothing has changed since the beginning. This slot machine offers a 96% return to the player and some impressive 3D graphics that really take you on the quest to discover the lost city of Eldorado.


Starburst is another extremely popular game in the gambling world, that always receives a lot of traction at casinos. Created by NetEnt, Starburst features some of their iconic design with 5 reels and 20 pay lines, and an RTP of 96.1%.

The reason why this game is so popular with players is just because of its low variance, which means that people can earn money more regularly which promises an entertaining action.

Despite the classic design, Starburst still features stunning graphics and some of the best bonus features.

Legacy of Egypt

Here we have a new contender that comes to the top online slot games created by Play’n GO. As you probably already know, Legacy of Egypt is created on an ancient Egypt theme with fantastic-looking reels populated by symbols, queens, and pharaohs.

This slot game is created by 5 reels and 30 paylines, creating many possibilities for winning some money. The best thing about Legacy of Egypt is that it provides many bonuses throughout the game. You can earn free spins and constant multipliers from 2x to 10 that will be applied to your spins. On top of that, you can receive more than 50 free spins when you sign up.

Age of Asgard

This is another interesting slot machine that is structured by 5 reels with up to 50 paylines. This is an exciting 2-in-1 concept that allows you to bet anywhere from $0.20 to $200 per spin and earn up to half a million dollars.

With a return-to-player of 96.2%, it is one of the highest-paying online slots that promises a ton of entertainment.

Final Words

These are some of the most popular online casino slots for this year. Since the industry is on the rise and many new companies are trying their hand at creating their own slot games, we expect a lot of new games that might climb to the top in the upcoming months.

Nicole Middleton
Nicole calls herself a typical millennial girl and thrives on her share of social media, celebrity gossip, and all things viral content. She’s a big fan of pop music and plays the guitar as a hobby.