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Mount Olympus: Revenge of Medusa Slot Review
Mount Olympus: Revenge of Medusa is a five-reel, 25-payline video slot developed by Genesis Gaming and released in December 2015. The Genesis catalogue is now distributed by Games Global, so you will find this game listed under either name depending on which casino platform you are using. The game is built around Greek mythology's most memorable villain: Medusa, the snake-haired gorgon whose gaze turns men to stone. In a neat thematic reversal, Medusa actually works in your favour during the bonus round rather than against you.
The RTP is 96.01%, which sits comfortably in the fair-to-generous range for a game of this era. Variance is medium-to-high: the base game is modest in its payouts, with the real win potential concentrated in the free spins feature. The setting is a stormy cave on the slopes of Mount Olympus. Rain hammers the reels, thunder rolls in the background, and the atmosphere does a solid job of putting you inside the legend. High-value symbols include Medusa herself (the top-paying symbol at 1,000x your line bet for five of a kind), Perseus's sword, a snake eye, and a glowing potion. Lower down the pay table you get the standard nine-to-Ace card icons, which is a minor concession to slot conventions in a game with this much mythological material to draw on.
Bets run from £0.25 to £125 per spin. The stake is constructed from a coin size (minimum 0.01) multiplied by up to 10 coins per payline across all 25 lines. You cannot deactivate paylines - all 25 are always active - which keeps the interface simple and ensures you never accidentally reduce your scatter coverage. There is no bonus buy option, which is worth knowing if that feature is important to you.
Wild Symbol
The wild is a golden "Wild" banner that substitutes for all regular symbols. When a wild completes a winning combination, it doubles the payout for that line - so a five-of-a-kind combination containing at least one wild pays twice the standard value. The wild can appear on any of the five reels in both the base game and during free spins, where the mechanic becomes significantly more powerful.
Scatter and Free Spins Trigger
The game logo acts as the scatter symbol. It pays out regardless of position on the reels, so even a non-triggering two-scatter result returns a small cash prize on top of your regular win. Land three or more scatters anywhere simultaneously and you trigger the Medusa free spins feature.
The Medusa Free Spins Feature
This is where the game earns its reputation. Triggering free spins opens a picker screen showing a row of Medusa symbols. You choose one, which reveals a snake underneath. That snake determines how many reels turn fully wild for your upcoming spin. This pick happens before every single free spin throughout the feature, not just once at the start - which keeps the bonus round interactive from beginning to end.
Each pick can award 1, 2, 3, or 4 fully wild reels, always drawn from reels 2 through 5 (reel 1 never locks wild). When all four non-first reels go wild simultaneously, the potential is substantial: only reel 1 carries variable symbols, but a single matching symbol on the leftmost reel fills every one of the 25 paylines at the doubled wild multiplier. You receive five free spins per trigger. Retriggers are possible if you land three more scatters during the round, extending the session. The feature does not offer a large spin count on paper, but when the picks deliver multiple full wild reels in succession, the results can be striking.
For similar free spins features built around interactive picker mechanics, Rise of Olympus by Play'n GO and Legend of Olympus offer comparable Greek mythology themes with their own take on bonus rounds. Gates of Olympus from Pragmatic Play takes a different, tumble-based approach to the same setting.
Base Game vs. Bonus Round Balance
The base game is deliberately quiet. Wins arrive regularly enough to keep the session moving, but hit frequency and payout sizes are modest. This is intentional: Genesis Gaming built this as a game that funnels its variance into the free spins. Patience in the base game is the price of admission to what can be a powerful bonus when the pick sequence goes your way.
If the picks produce mostly single wild reels, the bonus round can feel underwhelming relative to the build-up - that is the nature of medium-to-high variance mechanics. But when two or more reels lock wild repeatedly, Mount Olympus: Revenge of Medusa punches well above the weight expected of a 2015 game. If you are specifically looking for games around this RTP level, our high RTP slots guide covers options across a range of styles and providers. For the casinos where you can play it, see our full casino reviews.
Verdict
Mount Olympus: Revenge of Medusa has aged well in one specific area: the per-spin picker in the free spins round. Choosing a snake before every spin rather than receiving a fixed wild-reel count at the start creates sustained engagement throughout the feature that many contemporaries from 2015 do not offer. The 96.01% RTP is fair, the top symbol pays a solid 1,000x line bet, and the doubling wild adds measurable value across both game modes. The base symbols lean too heavily on card icons and the base game is thin on excitement - but for a Greek mythology slot where the bonus round has real teeth and a genuine element of player agency, this one still delivers.
Where to Play Mount Olympus – Revenge of Medusa
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