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Top 5 Online Slots with the Highest Return on Investment

Slots are some of the most popular games played at land-based casinos. However, they are even more popular among players who play online – millions of people all over the world indulge in playing one or another slot game for entertainment purposes. Online slots are also called fruit machines, pokies, video poker, etc. The name is not important but what matters is that the $50 sign up bonus offers give players an opportunity to win huge amounts of money within minutes by spinning virtual reels – just like you would spin real ones in traditional casinos.


There are many other reasons why online slots have become famous among casino lovers – no need to dress yourself up for a night out at the casino, ability to play any time of the day or night, access to special bonus features that make it more interesting and some other reasons.

Nevertheless, the main reason why people invest their time and money in playing online slots is that these games offer huge prizes to skilled players who know how to play them. Of course, nobody ensures that you will definitely win – but there’s a great chance for that if you understand how slot games work and if you’re keen on your choice of which slot machine to play at any given moment of the day.

Most casinos offer hundreds of different slot machines; these can be grouped into categories based on various aspects – theme, bonus features, etc. The only category that concerns us right now is Return on Investment (R.O.I.). Casino managers are pretty aware that most players crave high payouts, so they do all they can to attract as many players as possible. One of the ways to do that is by offering high-paying slots with attractive themes and bonus features that will win over new customers from rival casinos.


So which are the Best Slots with Highest R.O.I.?

Because of the immense amount of choices players have for online slots, making a choice is always difficult. We have created this list of Top 5 Best Slots with the Highest Return on Investment to make it easier. This list was compiled based on general opinion among many seasoned slot players who made their reviews available to us, combined with data provided by respected online casinos known for offering poker machines that offer better chances for winning. Here are the top five best slot machines you should play at any given moment:

  1. Mega Joker
  2. Jackpot 6000
  3. Starburst
  4. Spartan Slot
  5. Devil’s Delight
  • MEGA JOKER 89.1% – 99% RTP

Mega Joker is themed after the traditional Sizzling Hot game. Indeed, this slot machine was widely advertised as a modern version of Sizzling Hot, although it has nothing to do with it because it’s an entirely different game. The theme behind Mega Joker is very simple – you are presented with five reels and ten win lines. 

Your goal is to match three identical symbols along with one of the win lines to create the desired combination (e.g., three 7s). The RTP rate for Mega Joker by NetEnt varies between 89.1% and 99%. This means that every dollar you invest playing will give you back between $0.89 and $0.99.

  • JACKPOT 6000 95.1% – 98.8% RTP

Themed after one of the most popular slot machines in traditional casinos, Jackpot 6000 by NetEnt is a three-reel video slot that doesn’t offer too many bonus features but provides players with an opportunity to win big when they get matching symbols on adjacent reels from left to right. This theme opens a lot of doors for huge potential payouts as traditional slot machines.

The RTP rate varies between 95.1% and 98.8%, which is considered a very high average. Of course, there are those who say that these games will make you lose all your money in the long run, but it’s not true because nobody can really predict when you’ll come across a jackpot – even though the chances are extremely small.

  • STARBURST 94.8% – 96.09% RTP

Starburst by NetEnt is another popular five-reel slots machine that was inspired by traditional fruit machines. The theme is similar to that of games such as Sparks, but it also offers a few bonus features you won’t find in traditional slots. 

There are ten win lines which mean that the odds for winning are bigger than those from Mega Joker or Jackpot 6000. The RTP rate varies between 94.8% and 96.09% – an excellent choice if you’re looking for a slot machine with high payouts and average chances of losing money at the end of your session.

  • SPARTAN SLOT 94.8% – 96% RTP

Spartan Slot is the new kid on the block when it comes to the best online slot machines with high payouts, but you can definitely see why this game has already made its way to the top 5 list of online slots with the highest return on investment. Themed after Greek mythology, Spartan Slot offers ten paylines that have an average RTP rate of 96%. 

This means that for every dollar you bet, you’ll probably get back $0.96 at the end of your session. There are 243 ways to win in this game, so one might assume that your chances are smaller compared to other video slots – but they’re not! A player’s total odds of winning on any given spin are equal to the number of active win lines (10) multiplied by the total number of ways to win (243), divided by the overall number of symbols in play (5). This means that players have 243/5 = 48,6 ways to win per spin.


The Devil’s Delight is a five-reel video slot machine with 20 paylines and a simple but extremely attractive theme. The RTP rate varies between 97.6% to 98.9%. The bonus games include a gamble option that would double your winnings.

Final Thoughts

There are a lot of options to choose from if you’re looking for video slots with high RTP rates – which means that you have better chances to win money by playing online casino games instead of going out and buying lottery tickets. It’s also very important to understand that the overall return on investment of a slot machine, not just one particular feature or bonus game, determines how much money players can expect to win in the long run. This is why there are no specific RTP rates listed above – because different combinations of features and bonus games will affect your chances of winning (or losing) at these online video slot machines.

Keep in mind that some players will be better off choosing slots with lower payouts, but, on the other end of the spectrum, there are also true high rollers who can afford to bet hundreds of dollars on one single spin. If you’re lucky enough to become one of them, make sure you check out the top 5 games with the highest return on investment first.


Welcome to the Night Helper Blog. The Night Helper Blog was created in 2008. Since then we have been blessed to partner with many well-known Brands like Best Buy, Fisher Price, Toys "R" US., Hasbro, Disney, Teleflora, ClearCorrect, Radio Shack, VTech, KIA Motor, MAZDA and many other great brands. We have three awesome children, plus four adorable very active grandkids. From time to time they too are contributors to the Night Helper Blog. We enjoy reading, listening to music, entertaining, travel, movies, and of course blogging.

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