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Quick facts

Slot Type: Video
House Edge: 5%
Min / Max Bet: .02 / 150
Software Provider: Microgaming
Slot Variance: Medium
Free Spins: Yes
# of Reels: 5
Coin Range: .02 - 3.00
Bonus Rounds: Yes
# of Paylines: 30
Jackpot Type: Non-progressive / fixed
Wild-Reel or Symbol: Both
Scatter: Yes


Many of Microgaming’s pokie titles feel a little like copies of one another. However, Thunder King might be the pokie that emerges as king amongst all of those similar games. And as it should, since the game’s theme revolves around the lightning-tossing king Zeus and other familiar figures of Greek mythology that make for an epic pokie experience.

But Thunder King is not just all flash, as this is one pokie that can change your fortunes quickly with its three different mini-game features. Read more below in our Thunder King online pokies review to find out how each one works and what makes them so great.

Rating breakdown

It was easy to give this Microgaming pokie ‘royal’ scores across all categories when we did our Thunder King review.

Jackpots & Bonus Games:
Graphics and Sound:
Ease-of-use and Gameplay:
Compatibility With Mobile Devices:
Fun & Excitement:

Why Play This Pokie

  • Three different mini-features that can be triggered in and outside free games
  • Win up to 20 free spins at once (and re-trigger more)
  • Sticky and expanding wilds can appear at random
  • Mobile app for Apple players is about as good as they come

Detailed review


Jackpot & Bonus Games

The Mt. Olympus scatter symbol will trigger 10, 15, or 20 free spins when it appears three, four, or five times respectively. While free is always great, there are also three different bonus features that can be awarded during these rounds (and outside them) when Zeus appears on the screen:

Lightning Bonus: For every Zeus that appears, you’ll be rewarded with an expanding wild ‘lightning’ reel. Showing five white-eyed Zeuses means you’ll have five wild reels to spin on.

Tornado Bonus: A tornado rolls through the reels and turns a few symbols into sticky wilds for the remainder of the bonus games.

Snow Bonus: A multiplier anywhere from 1x to 100x your original bet is awarded.

There is also the typical gamble feature that lets you go double-or-nothing or quadruple-or-nothing on any real money win by playing a short and simple pick me bonus game.

THUNDER KING current jackpot

AU $1,200


up to

AU $1000

bonus at Spin Palace

Play now

Mobile play

Thunder King has its own dedicated mobile app for iPhone and iPad. If you own a different brand of smartphone or tablet, you can possibly still find and play the King on the apps or sites of your favourite mobile online casinos.

During our Thunder King online pokies review for mobile, the biggest highlights for us were:

  • Graphics that look super clear even on older devices
  • Simple-to-use interface that seemingly feels designed for mobile
  • All the same free spin and bonus features that you’d find on PC or in a real casino
  • Takes up minimal space on your Apple iPhone, iPad, or iPod Touch
  • Winning real cash is even more fun when you do it from the palms of your hands

Why THUNDER KING Is Worth Playing

Given its slew of different bonus features that help keep the game fresh and exciting, we can’t help but recommend this Aussie-made pokie from Microgaming to all our readers from Oz (and anywhere else, really).

Exclusive bonus
Get AU $1000 free when you play at Spin Palace
  • Three different bonus games possible to trigger during free spins
  • Thirty paylines and plenty of ways to win just like in the land casino version
  • Fun Hercluean theme takes you on an adventure with Zeus
  • Thunderbolts light up the screen on every real money win
  • Dedicated mobile apps for Apple for smartphones and tablets
  • Free spins can re-trigger again and again