Microgaming’s King of the Ring Slot Review

The King of the Ring online slot is powered by Microgaming and has 5 reels and 9 paylines. Available to play from 9p to £45 per spin across all devices, this Muay Thai inspired slot benefits from high value symbols and a Free Spins feature where you can win up to 30 free spins with all wins trebled (3x multiplier).

Where to Play Microgaming’s King of the Ring Slot

Casino Lab
  • 100% up to £100
  • 300 Free Spins
  • 1,500+ Slot Games
T&C Apply

18+. New players only. £10 min deposit. £5 Max Bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on pre-selected games. Free spins valid for 72 hours from credit. Max free spins winnings £100. Ewallets excluded. www.begambleaware.org #ad

LeoVegas Casino
  • 30 Wager-Free Spins
  • £100 in Bonuses
  • 2,100+ Slots
T&C Apply

Free spins – no deposit required & new players only. Claim within 3 days of registration & 3 day expiry. Free spins worth £0.10 each on Book of Dead, winnings paid as cash. Deposit offers available across any two deposits. Both expire 7 days after registration & have 7 days to wager once claimed. Deposit £10, £25 or £50+ & wager 35x for a cash reward. Only cash stakes qualify & wagering contributions vary. 5 free spins on Book of Dead with each qualifying deposit, 3 day expiry. BeGambleAware.org #ad

Novibet Casino
  • 100% up to £150
  • 35 Free Spins
  • 3,500+ Slots
T&C Apply

18+ | KYC verified | New players only | Min Deposit £10 | 100% bonus up to £150 + 35 Free Spins | 15 free spins on Book of Dead spin value = £0.10 + 20 free spins on Hotline spin value = £0.15 | Min 35x wagering | Bonus code: BEST20 | Skrill & Neteller deposits Excluded | Bonus & Free Spins Valid for 30 days | T&Cs apply | General Promotions Terms Apply #ad

King of the King Theme/Symbols

With a Muay Thai theme, King of the Ring tells the story on an intense combat between 2 Muay Thai fighters. With an Asian feel, symbols include A, K, Q, J, 10 and 9 royals as well as champion belts, mongkhon headbands, boxing gloves and the 2 Muay Thai fighters. The latter 2 pay 83.33 times your stake for 5 in combination.

There’s also another Muay Thai fighter symbol which is the wild and substitutes for all symbols bar the scatter – 2, 3, 4 or 5 on a payline will result in a 1.11, 22.22, 222.22 or 1,111.11 times stake win. You form winnings by getting matching symbols on adjacent reels starting from reel 1.

Free Spins feature

The King of the Ring slot comes with a solitary bonus feature – the Free Spins feature. This is played when you get 3 or more fighter scatters anywhere on the reels – you’ll get 2, 5, 20 or 500 times your stake for 2, 3, 4 or 5 on the reels. 3 or more will give you 15 free spins. With all wins subject to a trebling (3x) multiplier, you can retrigger the feature and win yourself another 15 free spins – taking your total to 30.

King of the Ring verdict

King of the Ring is rather basic in terms of gameplay as it just comes with 1 bonus feature found in countless other online slots. However, the Free Spins feature is a good one due to the high value symbols and the 3x multiplier. Filling the reels with Muay Thai fighter wilds will result in a 10,000 times stake payout – if you add in the 3x multiplier, you could potentially win 30,000 times your stake on every free spin! It is highly volatile though.

The King of the Ring mechanic may seem familiar – that’s because it uses the same game engine used in Microgaming’s iconic Thunderstruck slot. Not a bad slot to base yourself on! If you like the fighter theme though, Playtech’s Eliminators is recommended.

King of the Ring Slot Information

  • Game:
    King of the Ring
  • Software:
    Microgaming
  • Type:
    Video Slot
  • Reels:
    5
  • Paylines:
    9
  • Total Coins:
    9
  • Coins Range:
    0.09 to 45.00
  • Jackpot:
    10,000
  • Bonus Round:
    Yes (1)
  • Free Spins/Multiplier:
    15-30/3x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.