Olympus Thunderhold — review

On top of that there is an RTP of 95,74 — below the 96 that the rest of the market has settled on. The game was released 13. maj 2026 and uses the cascade engine that the Olympus genre has become synonymous with. The question is whether the engine can carry math that looks skewed on paper.

01Numbers first, theme later

High volatility is a price the player pays in patience, and the price makes sense when the reward is a high cap. In Olympus Thunderhold the cap is 2500x. By comparison, several titles in the same pool sit at 10000x and above with the same risk profile.

The RTP of 95,74 points in the same direction. The difference to 96 sounds small, but over many spins it's real, and it's not offset by a generous max cap. The numbers say you're taking a big risk for a limited reward.

Be precise here: the numbers don't make the game unusable. They make it a poor choice for someone chasing big wins, and an acceptable choice for someone who simply likes RTG's aesthetic and plays for entertainment.

02Cascade engine og Pay Anywhere

Mechanically there are no surprises. Avalanche and Cascading remove winning symbols and let new ones fall down, while Pay Anywhere and Scatter Pays mean symbols pay by count rather than by lines. It's the same framework as the genre's best-selling titles.

Scatter symbols trigger Free Spins, and Additional Free Spins make it possible to extend the round, while the Free Spins Multiplier increases the value of what lands along the way. Random multiplier places random multipliers on the grid in both base game and bonus.

All by the book. The feature list contains nothing that separates Olympus Thunderhold from a handful of other games in the pool, and that's probably the most sober criticism you can level at the title: it adds nothing.

03Buy feature in a game with a low cap

Buy Feature og Bonus Bet er begge til stede. Købefunktionen giver adgang til bonusrunden mod en fast pris, typisk et sted mellem 60 og 100 gange indsatsen i denne type spil — den præcise pris fremgår ikke af de oplyste data.

With a ceiling of 2500x the arithmetic is different than in titles where a buy can lead to a five-figure payout. The ceiling limits how large an outcome a buy can produce, which makes the buy feature less attractive than it appears at first glance.

04RTG's version of Olympus

RTG is an established studio with a broad catalogue, and Olympus Thunderhold is clearly a catalogue-filling product rather than a flagship. The themes — Gemstones, Gods, Greece, Treasures, Zeus — point the direction without surprising anyone.

The name Thunderhold suggests a hold mechanic, but Hold and Win does not appear on the feature list. It's the thunder of Zeus that's the reference, not a lock mechanic. Such naming choices are worth noting if you're looking for a specific format.