Moon Princess

The Moon Princess slot is Play'n GO's July 2017 anime-styled grid game: a 5x5 board where three or more matching symbols in a row or column pay, drop away and raise a multiplier with every drop. Three princesses, Love, Star and Storm, take turns with powers for losing rounds, and clearing all 25 positions starts free spins with a multiplier up to x20. We played the Moon Princess demo for 100 spins at $1.

What is the Moon Princess slot?

The board glows on a pink and violet backdrop. On the left are the Multiplier badge, the win list and the round Princess Trinity meter; on the right the logo and the princess whose turn it is.

Any three or more matching symbols touching in a straight line, across or down, pay; every row and column counts, and one symbol can sit in several wins. Winners vanish, the rest fall, and each new drop raises the win multiplier, which goes back to x1 when the next paid round starts.

The Moon is the wild. It stands in for every symbol, and whenever a three-symbol win is removed a fresh Moon lands in its middle spot. When only wilds are left, they are removed too, which helps empty the board.

At a $1 bet five Moons in a row pay $50 and five of one princess $10, with $5 for five mixed princesses. The bell and heart pay $3 for five, the star and green medallion $2, and three of the smallest pay 10 cents.

The stake comes from five quick buttons, 0.60 to 4.00 around the default, with a minus and a plus for further steps. The server's 16 coin values of 0.01 to 5.00 at 20 coins a spin span $0.20 to $100; the help text states no limits. There is no gamble, buy or ante.

Base spin 100 of 100 at $1, settled with no win: the 5x5 grid, the Multiplier at x1, the meter and Love beside the board. FluxPlays demo test, 19 October 2026.

Moon Princess bonus features

Girl Power

On rounds without a win, the princess on the right can use her Girl Power at random, and the round then carries on:

• Love: turns one set of symbols into another symbol
• Star: adds one or two wilds
• Storm: destroys two sets of symbols

After each Girl Power the next princess takes over, so the three rotate through a session.

The Girl Power page of the paytable in our demo session: Love, Star and Storm and what each does, with the 5000x cap. FluxPlays demo test, 19 October 2026.

Princess Trinity

The round meter under the win list has three sections, and only wins with princess symbols fill it, wilds included: five in a row fill three sections, four fill two and three fill one. Once it is full and no wins remain, a single free round starts with the multiplier reset. Each time a drop ends without a win, the next princess plays her Girl Power, until Love, Star and Storm have all had a turn. It cannot be retriggered.

The Princess Trinity page in our demo session: the three-section meter and the free round in which the princesses take turns. FluxPlays demo test, 19 October 2026.

Free spins for a cleared grid

Empty the whole board and the free spins begin, with a choice of princess: Love for 4 spins, Star for 5 or Storm for 8. Fewer spins carry more risk and more potential. Your princess uses her power on every losing free spin, and the multiplier no longer resets between spins, climbing as far as x20.

Filling the meter during free spins adds 4 spins with Love, 3 with Star or 2 with Storm, up to 20 in all; Princess Trinity does not run there. Clearing the board again inside the free spins pays an instant 100x the total bet.

The free spins page in our demo session: clear the grid, pick Love, Star or Storm, a multiplier up to x20 and 100x for a clear. FluxPlays demo test, 19 October 2026.

RTP, volatility and max win

The paytable states the cap: up to 5,000x the bet, $5,000 at $1. Neither the help text nor the five paytable pages give an RTP, and the official page lists none. Review sites list 96.50% as the top version, with 94.51%, 91.49%, 87.50% and 84.50% versions casinos can run, and rate the game high volatility; the demo does not show its version.

Our Moon Princess demo test

The practice demo shows credits without a currency, and we count each one as a dollar. It opened at 25,000.00 on the 1.00 bet, 20 coins of 0.05 on the server, with Star beside the grid. A script pressed spin for each round in turn, without Auto Play, in one session with no reload.

The server log matches the screen to the cent: $100.00 staked, $39.95 returned and 24,939.95 at the end, on the server and on screen. Wins came on 33 spins, 23 of them under $1, and the longest losing run was 7 spins, 69 to 75. The balance never climbed above 24,999.15, its level after spin 1, and it ended at its lowest point.

Four rounds stood out, all near 6x the bet. The best, spin 21, paid $6.70 over a long chain of drops: the multiplier reached x7 and the board thinned to a handful of symbols, but never emptied.

Base spin 21 of 100 at $1, settled: a nearly empty grid, the drop multiplier up to x7 in the win list, $6.70 in all. FluxPlays demo test, 19 October 2026.

Spin 12 was the Princess Trinity, by the server log: a feature line, then Love, Star and Storm in turn, for $6.20. The other two were $6.55 on spin 38 and $6.15 on spin 63, the second after a Star Girl Power. These are single results: without the four, the other 96 spins returned $14.35, none above $2.20.

Base spin 12 of 100 at $1, settled after the Princess Trinity: three Moon wilds left and the multiplier from x2 to x5, $6.20. FluxPlays demo test, 19 October 2026.

Girl Power fired on 11 rounds by the server log, four times each for Star and Storm and three times for Love. Only three of those rounds paid $1 or more.

The board never cleared, so we never saw the free spins, the princess choice, the x20 multiplier or the 100x clear. A hundred spins without the main bonus cannot speak to the RTP or the volatility.

Is Moon Princess worth trying?

Moon Princess rewards long chains. Every drop lifts the multiplier, a three-symbol win leaves a wild behind, and the princesses' powers give a dead round a second chance. The one goal that matters, an empty board, turns all of that into free spins where the multiplier keeps building.

The flip side is how rare a full clear is, and how little the base game pays without one. Three of a small symbol pay 10 or 15 cents, the multiplier resets each paid round, and there is no buy. Our session never emptied the board and slid steadily.

By both games' rules, Rise of Olympus is the same machine in Greek dress. Its gods match the princesses power for power: Hades transforms, Poseidon adds wilds, Zeus destroys. Its free spins come for a clear, with 4, 5 or 8 spins, x20 and 100x for a clear, and it has the same paytable and the same 5,000x cap. Moon Princess came first, in 2017; Rise of Olympus followed in August 2018.

Our tests of the two ran alike as well: $39.95 here and $37.10 there, with best rounds of $6.70 and $6.50 and neither board cleared, single sessions both.