Rainbow King Slot Machine

Novomatic presents a multi-coloured royalty that consists of a generous king through Rainbow King slots.

Rainbow King Slots is a 5-reel, 20 payline, online video slot game, powered by Greentube. The low variance casino game has an RTP of 95% and a Cartoon theme. Bonus features, such as Rainbow King Wilds, Cash Castle Scatters and the King Cash Bonus, could help you win up to a maximum of 12,500 coins!

Dive in to find out more through this Rainbow King Slot Review!

Best Rainbow King Slot Sites

Play the game at the best casino sites. From our research, we have created a list of the Rainbow King Slot Sites and casino sites in June 2022:

  • MrQ

    MrQ Logo
    GET 20 FREE SPINS

    20 Free Spins credited upon your first £10 deposit on Fishin’ Frenzy The Big Catch slot only, valued at 10p per spin. Free Spins must be used within 48 hours of qualifying. All winnings are uncapped and credited to your real money balance. 18+. BeGambleaware.org

    Full T&C's Apply

  • Wizard Slots

    Wizard Slots Logo
    500 FREE SPINS

    New Players Only, Min Deposit £10, £8 Max Win Per 10 Spins, Max Bonus Conversion Equal To Lifetime Deposits (Up To £250), 65X Wagering Requirements.

    Full T&C's Apply

  • PlayOJO Casino

    Play Ojo Logo
    80 FREE SPINS NO WAGERING

    This offer is only available for first time depositors. Min deposit is £10. 50 Free Spins on Rich Wilde and the Book of Dead Slots. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJO’s Rewards and Game Play policy applies.

    Full T&C's Apply

  • Unibet Slots

    Unibet Slots Logo
    DEPOSIT £10 GET £40

    New customers only. 18+, BeGambleAware.org. Min deposit £10. Money back as bonus. Wagering requirements: Sportsbook 3x at min. odds of 1.40 (2/5), Casino 25x. Only one bonus can be used at a time, Sportsbook bonus must be wagered before using the Casino, unless the bonus has been forfeited. Bonus will expire after 7 days of opt-in.

    Full T&C's Apply

  • Playzee

    Playzee Logo
    100% UP TO £300 BONUS + 100 ZEE SPINS

    18+. New players only. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org.

    Full T&C's Apply

  • WatchMySpin

    WatchMySpin Logo
    UP TO £100 + FREE SPINS

    New players only. Wagering occurs from real balance first. 50x wagering the bonus. Contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus valid 30 days from receipt. Max conversion: 3 times the bonus amount. Withdrawal requests voids all active/pending bonuses. Excluded Skrill deposits.

    Full T&C's Apply

  • Slots Magic

    Slots Magic Logo
    UP TO £50 + 50 FREE SPINS

    First Deposit Only. Min. deposit: £10, max. Bonus £50. Game: Rich Wilde and the Book of Dead, Spin Value: £0.10, Max Extra Spins:50. WR of 30x Deposit + Bonus amount and 60x Extra Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the extra spin winnings and bonus amount or £5 (lowest amount applies). Extra Spins must be used before deposited funds. Bonus Policy Applies.

    Full T&C's Apply

  • Pots of Luck

    Pots of Luck Logo
    UP TO 300 BONUS SPINS

    New players only. First deposit only. Min deposit £10. Min 100 bonus spins, max 300 bonus spins on selected slots only. 30x wagering. 4x conversion.

    Full T&C's Apply

  • 888 Casino

    888 Casino Logo
    88 FREE SPINS NO DEPOSIT + £100 WELCOME BONUS

    No Deposit Offer: New players with valid mobile number only • Claim in 48 hrs • 14 day expiry • Valid for selected games • Pre-1st deposit only: FS voucher winnings is uncapped, bonus wins & max redeemable amount for non-funded players capped at £100, excl. JP wins • Wager Bonus x1 – req. contributions vary by game • Bonus expires in 90 days • Deposit Offer: 1st time depositor at 888casino only • £20 min deposit • Claim in 48 hrs • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 30x wagering – req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.

    Full T&C's Apply

  • MFortune Slots

    mFortunte Slots Logo
    UP TO £10 NO DEPOSIT BONUS

    18+. New players only. 20x wagering requirement. Expires after 7 days. Max withdrawal from bonus winnings £50. T&Cs apply, BeGambleAware.org

    Full T&C's Apply

  • Mr Spin No Deposit Bonus

    Mr Spin Casino Logo
    UP TO 50 FREE SPINS

    18+. New Players only. Up to 50 (20p) free spins locked to Reel Royalty. Win paid as bonus credit. 40x wagering requirement. 14 day expiry. £50 Max withdrawal from bonus win. T&Cs apply. BeGambleAware.org

    Full T&C's Apply

  • Slotzo

    Slotzo Logo
    UP TO £150 + 50 EXTRA SPINS

    18+. New Players Only. Min. deposit £20. UK players. Max. bonus 1st deposit £50 and 2nd deposit £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins available on specific games. Spins expire after 24 hours.

    Full T&C's Apply

About Rainbow King Slots

Rainbow King is a video slot game from Novomatic with a theme inspired by the multi-coloured arc made by the dispersion of light in water droplets.

Rainbow King comes with five reels, three rows, and 20 paylines.

It has many impressive bonus features such as the Rainbow King feature, King Cash feature, and the Cash Castle feature.

The Rainbow King slot takes players to the kingdom of colours.

A magnificent rainbow can also be seen adorning the upper part of the game screen.

There are five vertical reels in the Rainbow King slot, displaying three symbols each.

The symbols include the card symbols designed with royal colours.

Colourful gems and sparkling crowns can also be seen filling the reels.

Slot Info

Rainbow King SlotsAttributes

Casino Game:

Rainbow King Slot Game

Paylines:

20 winning combinations

Reels:

5 reel slots

Software:

Greentube Slots Provider

Minimum Bet:

£0.40

Max Bet:

£100

Variance:

Low Variance Slots

RTP:

95%

Slot Theme: 

Cartoon Royalty

Bonus Features:

Rainbow King Wild, Cash Castle Scatter, King Cash Bonus, Autoplay Feature

Max Win:

12,500 Coins

Free Spins:

Yes

Release Date:

14th December 2011

How to Play Rainbow King Slots Online

  1. To play Rainbow King online, players must first set the number of lines to be played by clicking on the Lines button.
  2. Modify the number of coins on each line by clicking on the Bet/Line buttons.
  3. Click on the Start button to get the reels spinning.

For more details regarding the game, players can click on the More Info button.

Players can enjoy playing Rainbow King on their computer since this slot is compatible with Mac, Windows, and Linux.

The Rainbow King slot is fully optimized for mobile play on iPhones, iPads, Android phones, and tablets.

Interactive Features

The Rainbow King slot offers special features, including the following:

  • The Rainbow King Wild

This special symbol can replace other symbols in the game apart from the Rainbow King, the Castle, and the Crown icons to help players form more winning combinations.

  • The Rainbow King

This special feature can be triggered by landing at least three Rainbow King symbols.

By clicking on the Spin button, the player will then be moved around the feature board, and a die will be thrown.

Each square that the player lands will correspond to different prizes.

  • The Cash Castle

This is another special feature in the game which can be activated by landing at least three Castle symbols.

During this round, the player gets to choose a castle to reveal a prize.

  • The King Cash Feature

This round can be triggered by getting at least three Crown symbols on the second, third and fourth reels.

During this round, the player gets to select one of the twelve Crowns to reveal a prize.

  • The Rainbow King Autoplay

Players can utilize the Rainbow King slot game’s Autoplay feature to turn the reels without interruption.

What Symbol Triggers the Rainbow King Slot Bonus Free Spins?

Landing the Rainbow King square will take the player to a small slot game which he can play when his character lands on the Take the Money square.

The Free Spins will then play out.

The Rainbow King bonus feature will end when a symbol other than a seven appears.

Payline and Stakes

The Rainbow King slot offers 20 adjustable paylines.

The coin size ranges from 0.01 to 20.00.

The betting range is from 0.20 to 100 coins per spin.

The Rainbow King slot game also boasts a maximum possible payout worth a whopping 250,000 coins by waging the maximum bet on all bet lines.

Rainbow King Slot Game Software

Novomatic has the goal of providing top performing game content and an industry-leading range of proven video slot classics along with new highlights and internationally famous player favourites.

What is the Rainbow King Slot’s RTP?

The Return to Player for Rainbow King is 95%.

This payout percentage for the Rainbow King slot means that there is a theoretical return of 95 coins for a 100-coin wager.

Slot Volatility

The Rainbow King video slot game has a low variance.

This slot variance means that this slot game pays out frequently.

Summary

All in all, the expertly drawn graphics and fun animations of Rainbow King along with the helpful bonus features mentioned above make this game highly recommended to slots players.

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Skilled in copywriting with a BA (Hons) Degree focused in the English Language from Edge Hill University. I love to write comparison articles and research various topics online including the iGaming industry. The real money gaming websites online are fascinating to study with big win payouts in the UK happening daily.