4 / 5

UK Players only. Minimum deposit £20. Maximum bonus £100. Wagering Requirement x35. General Bonus. Valid until further notice. Full T&C's

Play for real at CampeonUK

Thunder of Olympus

Step into the home of the Greek gods and experience the power of the thunder atop the throne of Zeus. Anyone who’s up for tackling the mystical Mount Olympus could be in line for the top reward from the Grand jackpot here.

  • Game Provider:
  • FREE SPINS: yes
  • Rating
    4 / 5

The best casino to play Thunder of Olympus

Casino Review
4 / 5
Total Welcome Package
First Deposit Offer
100% bonus up to £100
Minimum deposit
No. of games
Minimum withdrawal
Visit Casino

UK Players only. Minimum deposit £20. Maximum bonus £100. Wagering Requirement x35. General Bonus. Valid until further notice. Full T&C's

UK Players only. Minimum deposit £20. Maximum bonus £100. Wagering Requirement x35. General Bonus. Valid until further notice. Full T&C's

More great casinos

  • Generation VIP
    Minimum deposit
    Visit Casino

    Min deposit £10. Max bonus £77. WR. 35x, spins valid for 24hrs, on selected games. Full T&C's

  • Karamba
    Minimum deposit
    Visit Casino

    Min Deposit: £10. Max bonus £50. 100 spins require 3 deposits. WR 35x, spins valid for 24hrs, on selected games. Full T&C's

  • LeoVegas
    Minimum deposit
    Visit Casino

    In order to get no deposit bonus, select Casino welcome bonus offer on sign-up. 20 Free Spins available on Book of Dead game only. Must be claimed on ‘'My Offers'' page within 14 days of sign-up. Free Spins have a £0.10 value each; expire 7 days from claim. 35x wagering requirement on eligible slots before winnings are converted to cash. In order to get deposit bonuses, select "Casino bonus offer" on sign-up and deposits. Deposits of £10, £20, £50, £100 matched with a bonus offer of same value (14-day expiry). Total of four (4) Deposit bonuses + bonus spins offers available. 35x real money cash wagering of bonus offer amount must be met (30 days from deposit) before bonus is credited in cash. Spins credited upon deposits: under £50 - 10 Spins; £50 or over - 25 Spins. Spins on Book of Dead only, 3-day expiry, winnings paid in cash. Eligibility requirements apply. Play Responsibly. Full T&C's

Thunder of Olympus Slot Review

Booongo welcomes yet another member to its fast-multiplying Win and Hold clan, Thunder of Olympus (not to be confused with Olympus Thunder). Themed on Ancient Greece, this slot boasts beautiful graphics, a 5×3 reel layout, 25 paylines and the popular Hold and Win feature where you collect lightning symbols to win the Grand jackpot.

SLOT FEATURESHold and Win Feature, Free Spins, Respins
RELEASE DATE9 September 2020
THEMEAncient Greece
REELS, ROWS, PAYLINES5 reels, 3 Rows, 25 Paylines
BET LEVELS£0.25-£60
MAXIMUM WIN1,000x Your Stake

Thunder of Olympus Bonus Features

The Thunder of Olympus bonus features have the same vibe as many of its cousins in Booongo’s Hold and Win slot family. As with the rest of the games in the series, there’s nothing complicated here. All you have to do is collect 6 lightning bonus symbols, enjoy the respin feature and hope to land the Grand jackpot.


Used mainly for collecting, carrying, and pouring water in Ancient Greece, the Hydria serves as a wild symbol in the Thunder of Olympus slot. It substitutes for all other symbols during the game except the lightning bonus bubbles which are reserved for jackpot wins.


As symbols of abundance, the horns of plenty, overflowing with gold coins, represent scatters in this Greek-inspired online game. They can be seen triggering 8 free spins when landing anywhere on reels 2, 3 and 4.

Free Spins

Triggered by 3 scatter symbols on reels 2, 3 and 4, the 8 free spins game begins during which only high-value symbols fill the reels. Landing an additional 3 scatters on the same reels will activate a further batch of 8 free spins.

Bonus Game

During the base game, watch out for some thundery lightning bonus symbols on the reels. If 6 of them come into view, the developer’s signature Hold and Win bonus round kicks in with 3 respins. The triggering bonus symbols stick in place with only bonus symbols falling through the feature. Each new bonus symbol appearing on the reels will reset the respins to 3 again. Fill all 15 spaces with the lightning bubbles for a chance to win the Major jackpot.

Thunder of Olympus Jackpot

The Thunder of Olympus slot comes with three jackpots – Mini, Major and Grand – all of which you can win during the bonus game. To benefit from the randomly appearing Mini and Major jackpot payouts you’ll have to land the corresponding symbols. The Grand jackpot of 1,000x your stake calls for 15 bonus symbols of any kind to fill the reels.

RTP and Volatility

Booongo doesn’t always share the key stats, but based on their extensive Hold and Win series, the volatility of Thunder of Olympus should be somewhere halfway between medium to high. The RTP figure could be set anywhere between 95% to 97%.

Where to Play Thunder of Olympus

Play Thunder of Olympus only at the most trusted online casinos offering welcome bonuses and the developer’s other slots. Both Leo Vegas and Generation VIP are on our top list as UK licensed and safe to play at Booongo casinos.

Thunder of Olympus on Mobile

You’ll find the beautiful high-quality graphics and smooth gameplay of Thunder of Olympus maintained on both your desktop and your mobile. Developed using the HTML5 format, the slot is perfectly suitable for any device powered by iOS or Android.

What does John have to say?


Beautiful to look at and smooth to play, Thunder of Olympus, unfortunately, isn’t the most memorable slot we’ve played. It’s great for trying out the Hold and Win feature but feels too generic to compete with other Ancient Greece inspired online games.


  • 3 jackpots
  • 8 free spins
  • Stunning graphics


  • Too similar to other Hold and Win slots
  • Modest jackpot wins
4 / 5