Royal League Neptune’s Harem Slot

Microgaming - Royal League Neptune's Harem

You must be 18+ to play this demo.

Full Screen
  1. Bonus $1,000 Spin to Win Virtual Credits Everyday
    Must be 21+ and present in an eligible state. T&Cs apply. Gambling problem? Call 1-800 GAMBLER.

Royal League Neptune’s Harem Slot Review

As implied by its title, Microgaming’s slot, designed by Gong Gaming Technologies, Royal League Neptune’s Harem, revolves around the God of the Sea Neptune and all of the women in his harem. Although the title may imply otherwise, there’s nothing salty about the slot, depicted with comic-book-style graphics.

The slot offers a medium volatile action, filled with Free Spins, Multipliers, and jackpot prizes. It is set on a 5x3 grid and offers 20 paylines and an excellent overall payout potential of up to 10,000x the stake. Ready to find out more about Royal League Neptune's Harem real money slot? Stay with us!

Royal League Neptune's Harem Game Logo
RTP 96.90%
Volatility Medium
Maximum Win €250,000.00
Bonus Buy Icon Error No
Game Provider Microgaming

Licensing Authorities and Testing Agencies

Royal League Neptune’s Harem Slot Setup and Paytable

If you’ve played a slot by Gong Gaming Technologies, you know that the studio likes to keep things clean. That’s why when you load the slot, you will see that the reels are at the center of the screen, and on their left side, the four Royal League Jackpot prizes are displayed. But the control buttons are not on the right, like in most slots by other developers, but further left from the jackpot prizes in the header. If you're playing on a mobile device, in portrait mode, the control buttons will be below the reels, and the jackpot prizes above them.

First, you see the Speaker button, where you can enable or disable the sounds of the game, and then the “i” button, where you’ll find the paytable. Once inside, you’ll see that the Wild is the Trident, of course, while the charming mermaids that form part of the harem, are the high-paying symbols. You have the purple-haired, the orange-haired, the green-haired, and the black-haired mermaid in blue clothes. The low-paying are the stars, sapphires shells, pearls, and conch shells, so generally, sea-inspired symbols.

Going down, you’ll also see the three-bar button, where you can adjust the other settings of the game. Here, you can also adjust your bet level from 0.20 to 25 credits.

Royal League Neptune’s Harem Mobile Slot

As you’ve probably assumed, Royal League Neptune’s Harem slot is playable across all devices. On a desktop device and a mobile device in landscape mode, the setup will be the same. In portrait mode, on mobile devices, the reels will be at the center of the screen, the jackpots above, and the control buttons below them.

Nevertheless, whichever device you choose to use, you can rest assured that the game will offer the same features and payouts, regardless of whether you’re playing it at home or on the go.

Reels 5
Rows 3
Autoplay Option
Autoplay Option Icon Yes
Release Date
Release Date 26/07/2021
Part of a Series
Part of a Series Royal League series
Paylines 20
Minimum Bet
Minimum Bet €0.20
Maximum Bet
Maximum Bet €25.00

Royal League Neptune’s Harem Slot Base Game Features

The base game in Royal League Neptune’s Harem slot is a pretty basic one. You get the aid of the Wild Trident to create multiple winning combos, as the Wild will be substituting for all symbols bar the Scatter.

Other than that, your hopes should be aimed at landing 2 Scatters so that you can trigger the Royal League Neptune’s Harem Bonus Round.

Royal League Neptune’s Harem Slot Free Spins and Bonus Features

When you land 2 Scatters, the game goes to a different setting, to a chamber filled with golden coins, where you have four cards to choose from, each represented by one of the mermaids. Choosing one, the number of Free Spins will be revealed, 5, 7, 8, or 12. After that, the other four different cards will be presented, and by choosing one of them, you get to see which Multiplier will apply to your wins during the respective Free Spins, 2x, 3x, 5x, or 10x. Essentially, you can get up to 12 Free Spins with a Multiplier of up to 10x. The best part? For each Bonus symbol you land during the Free Spins, you get 1+ Free Spins added to the total.

At random, the jackpot feature may get triggered. This is when you get a new 7x7 grid with 49 precious stones as symbols. Then, you get to spin two dice in order to get the respective jackpot prize, 10x, 100x, 1,000x, or 10,000x the stake.

Slot Features

Multipliers Icon Yes
Fixed Jackpot Icon Yes
Scatters Icon Yes
Wild Symbol Icon Yes
Free Spins Icon Yes
Quickspin Icon Yes
Retriggering Icon Yes

Royal League Neptune’s Harem Slot Max Payout, RTP & Volatility

As introduced, and as you can see from the max jackpot prize, the most you can win playing Royal League Neptune’s Harem is 10,000x the stake.

Considering the slot is playable for bets of up to 25 credits per spin, it means that you could scoop up to 250,000 credits playing it. This is more than a decent payout potential, and one definitely worth playing the game for.

Take a look at our selected slots with bonuses available here!

Royal League Neptune’s Harem Slot Summary

We’ve seen other titles by Microgaming inspired by Neptune’s life, like Neptune’s Riches Oceans of Wilds by JustForTheWin and Neptune Rising by Plank Gaming. But Royal League Neptune’s Harem is the one that offers the most excitement, considering you can win one of the four jackpots at random. Therefore, if you’re in for a slot with great graphics, decent payout potential, a fun theme, and exciting gameplay, make sure you give Royal League Neptune’s Harem a try at top-notch online casinos.

New Slots Calendar

New slot games are popping up more often than you think. Over the years we’ve built up relationships with the internet’s leading slot game developers, so if a new game is about to drop it’s likely we’ll hear about it first. If you don’t want to be behind the curve, stick with us.

New Games Calendar

Meet Our Slot Tester

Karolis Matulis
Karolis Matulis Slot Tester

Karolis Matulis is an SEO Content Editor at with more than 5 years of experience in the online gambling industry. Karolis has written and edited dozens of slot and casino reviews and has played and tested thousands of online slot games. So if there's a new slot title coming out soon, you better know it – Karolis has already tried it.

This review is based on the writer's personal opinion is an informative comparison site that helps users find the best products and offers. We maintain a free service by receiving advertising fees from the brands we review. Ratings are based on position in the comparison table or specific formulas. We strive to keep information up-to-date, but offers are subject to change. We do not compare or include all brands and offers.


Who created the Royal League Neptune’s Harem slot?
When was Royal League Neptune’s Harem slot released?
Will I be able to trigger Free Spins in Royal League Neptune’s Harem slot?
Can you retrigger the Free Spins in Royal League Neptune’s Harem slot?
What is the max win potential in Royal League Neptune’s Harem slot?
Is Royal League Neptune’s Harem a jackpot slot?
Do I need to download Royal League Neptune’s Harem to play it on my smartphone?
Is Royal League Neptune’s Harem a highly volatile slot?
Can I win real money playing Royal League Neptune’s Harem slot?
How many paylines does the slot Royal League Neptune’s Harem offer?

Ask the experts

Need expert help? Ask a question and one of our in-house experts will get back to you...

Get in touch
Get in touch

Test Your Luck
Not Your Spam Filter

Sign up to receive emails and promotions from Email Signup Coins