Play'n GOPlay'n GO

    Firefly Frenzy

    7.9/10
    Release July 2019· Updated August 2026

    A 5x4 grid, 30 fixed paylines, 96.59% RTP and a 10,000x ceiling: the firefly wilds multiply each other rather than adding up, all the way to 243x.

    RTP
    96.59%
    Volatility
    High
    Max Win
    10 000x
    Grid
    5x4 grid
    Bonus Buy
    No
    3 types de wilds luciolesMultiplicateurs cumulables x243Frenzy Spins
    Firefly Frenzy
    🎰

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    BetsRank Verdict

    Hands-on testing by Alexandre Dubois — bonus tested, multiple sessions

    Firefly Frenzy does the thing Crystal Sun, released three months earlier by the same studio, does not: its multipliers multiply each other instead of adding together. On Crystal Sun, three x3 wilds give x9. Here, five x3 fireflies on a line give 3 × 3 × 3 × 3 × 3, which is x243. That is the entire distance between a 4,000x ceiling and a 10,000x one, and it is why Firefly Frenzy sits in the top quarter of the Play'n GO catalogue we track, with 116 of the 180 machines in the database capping lower. The 96.59% RTP is excellent — only ten titles do better — but Play'n GO also ships a 94.52% build, two full points down, and the casino decides. The Frenzy Spins trigger is stricter than it looks: a moon scatter is not enough, a firefly wild has to land on top of it. Two events instead of one. Eight spins are the reward, with a multiplier floor that rises on every retrigger. Sources contradict each other on volatility, rated high by some databases and very high by another; in play, the second reading looks closer to the mark.

    Strengths

    • +Multiplicative multipliers: x243 is reachable, against x9 on Crystal Sun
    • +10,000x cap, above 116 of the 180 Play’n GO titles in the BetsRank database
    • +96.59% RTP, among the eleven best in the catalogue we track
    • +Frenzy Spins retrigger without a documented limit
    • +The floor multiplier rises when you retrigger with a better firefly

    To consider

    • The bonus needs two conditions at once, not a simple scatter count
    • Eight free spins is short without a retrigger
    • A 94.52% RTP build circulates, two points below the top version
    • €0.30 minimum stake, higher than the studio’s usual €0.20
    • Sources contradict each other on volatility, high or very high

    About Firefly Frenzy

    Firefly Frenzy arrived on 24 July 2019, three months after Crystal Sun. Play'n GO files it under a fantasy theme and, as with most of its games, publishes no RTP, no volatility and no maximum win on the official page. Every figure below comes from specialist databases.

    The grid runs five reels by four rows, twenty positions in all, with 30 fixed paylines. That detail deserves precision, because listings claiming "30 ways to win" circulate: three independent sources document paylines, not ways. The difference is not cosmetic — a payline imposes a specific path, a way to win accepts any position on the reel.

    The game rests on three firefly wilds. The first is an ordinary wild with no multiplier. The second carries a x2 multiplier and the third a x3. Sources agree on those values but disagree on the colour of the x2 wild, described as yellow in one place and orange in another; the values themselves never move. All three substitute for the paying symbols.

    The decisive rule fits in one sentence: when several multiplier wilds take part in the same combination, their multipliers multiply each other. Five x3 fireflies in a row produce 3 × 3 × 3 × 3 × 3 = 243x, the documented maximum. The progression is brutal: two x3 wilds are worth x9, three are worth x27, four are worth x81. Each extra firefly triples the value of the line, where an additive system would merely add three.

    Frenzy Spins do not trigger like conventional free spins. A moon scatter has to appear on the reels and a firefly wild has to land on it. Two conditions instead of one, which explains how rarely the bonus shows up. The reward is eight spins. If the triggering firefly carried a multiplier, that multiplier applies to every win in the round. Retriggers are unlimited, and a retrigger obtained with a higher-value firefly raises the floor multiplier for the rest of the feature.

    The default RTP is 96.59%, leaving the house a theoretical €3.41 per €100 wagered. Across the 180 Play'n GO machines in the BetsRank database, only ten do better. One warning though: a 94.52% build exists, which lifts the margin to €5.48 per €100. Two points of difference is more than the entire house edge on many table games, and the active figure is printed in the casino's game rules.

    Stakes run from €0.30 to €90, rather than the €0.20 to €100 seen on most of the studio's titles. The reason is arithmetic: 30 lines at €0.01 make €0.30, and 30 lines at €3 make €90. Legacy of Egypt, another thirty-liner from the studio held in our database, uses exactly the same range. The 10,000x cap is therefore worth €3,000 at the minimum stake, €10,000 at €1 and €900,000 at €90. That is a genuine ceiling: 116 of the 180 Play'n GO machines in our database stop lower. On volatility the databases split — SlotCatalog and several listings call it high, another calls it very high. With a bonus gated behind two conditions and a multiplier that triples with every wild, the second reading matches what the game actually produces.

    Key mechanics

    • 5x4 grid, twenty positions, and 30 fixed paylines
    • Three firefly wilds: one plain, one at x2, one at x3
    • The firefly wilds substitute for every paying symbol
    • Multipliers multiply each other rather than adding together
    • Five x3 fireflies on a line give 3 × 3 × 3 × 3 × 3, or x243
    • Frenzy Spins triggered by a firefly wild landing on the moon scatter
    • Eight free spins, carrying the triggering firefly’s multiplier
    • Unlimited retriggers, each capable of raising the floor multiplier
    • Default RTP of 96.59%, leaving €3.41 house margin per €100 wagered
    • Stakes from €0.30 to €90, capped at 10,000x

    Firefly Frenzy FAQ

    What is the RTP of Firefly Frenzy?

    The default setting is 96.

    59%, leaving the house €3. 41 per €100 wagered. A 94. 52% build also exists, which pushes the margin to €5. 48. The operator chooses, and the active figure appears in the game rules.

    How many paylines does the game have?

    Thirty fixed paylines on a five-reel, four-row grid.

    Some listings describe "30 ways to win", which is inaccurate: three independent sources document paylines, meaning fixed paths across the grid.

    How do the three firefly wilds work?

    The first is an ordinary wild with no multiplier, the second carries x2 and the third x3.

    All substitute for the paying symbols. Sources disagree on the colour of the x2 wild but agree on the values themselves.

    Why can the multiplier reach x243?

    Because the multipliers multiply each other instead of adding.

    Five x3 fireflies on the same line give 3 × 3 × 3 × 3 × 3, which is 243. Two wilds already make x9, three make x27 and four make x81.

    How are Frenzy Spins triggered?

    A moon scatter has to appear on the reels and a firefly wild has to land on top of it.

    Those are two simultaneous conditions rather than a scatter count, which makes the feature considerably rarer.

    How many free spins do you get?

    Eight per trigger.

    If the firefly that triggered the round carried a multiplier, that multiplier applies to every win during the feature, so two bonuses of identical length can be worth wildly different amounts.

    Can Frenzy Spins be retriggered?

    Yes, with no documented limit.

    Better still, a retrigger obtained with a higher-value firefly raises the floor multiplier for the rest of the feature, so a long chain of retriggers improves the quality of the remaining spins.

    What is the maximum win worth in cash?

    The documented cap is 10,000x the stake: €3,000 at €0.

    30, €10,000 at €1 and €900,000 at the €90 maximum. Across the 180 Play'n GO titles in the BetsRank database, 116 cap lower than that.

    Why do stakes stop at €90 rather than €100?

    Because the range follows the line count: 30 lines at €0.

    01 make €0. 30, and 30 lines at €3 make €90. Legacy of Egypt, another thirty-liner from the studio, uses exactly the same range.

    How volatile is the game?

    The databases contradict each other: SlotCatalog and several listings rate it high, another rates it very high.

    With a bonus gated behind two conditions and a multiplier that triples per wild, high is a reasonable floor.

    Is there a bonus buy?

    No.

    No source mentions a buy option on this title, and the BetsRank database does not list one. Frenzy Spins can only be reached by pairing the moon scatter with a firefly wild on the same spin.

    Alexandre Dubois
    Alexandre Dubois

    Online Casino & Bonus Expert

    Last updated: 8/9/2026

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    Slot sheet last updated on · Sources: slotcatalog.com, official provider sites, BetsRank hands-on testing