Moon Princess Slot Review
Last updated: July 2026
The Moon Princess slot by Play’n GO is a magical-girl grid slot with three anime princesses, Love, Star and Storm, who each grant a power. It runs a 96.50% RTP by default, is high volatility, and caps at 5,000x. Like every Play’n GO grid slot, casinos can quietly run versions as low as 84.50%. Here is the honest guide to how the princesses work and where to play.
Our score: 4.0/5. A charming, well-designed anime grid slot with a fun three-power mechanic and a satisfying clear-the-grid bonus. Marked down for high volatility, the wide Play’n GO RTP spread, and a 5,000x ceiling that is hard to reach.
Moon Princess at a glance
What is the Moon Princess slot?
Moon Princess is one of Play’n GO’s most iconic grid slots, released in 2017, an anime magical-girl game inspired by the Sailor Moon style, built around three princesses: Love, Star and Storm. It uses a 5×5 grid where you win by matching three or more symbols, and the three princesses actively help you clear the board. It is bright, charming and cleverly designed, and it spawned a whole family of sequels.
How Moon Princess works
You win by matching symbols, which cascade away for more wins, and a multiplier climbs with each cascade. The three princesses each have a power:
- Love transforms one set of symbols into another to create wins.
- Star adds one or two extra wild symbols to the grid.
- Storm removes whole sets of symbols to clear space.
On a non-winning spin, the Girl Power feature randomly triggers one princess to use her power and try to make a win. And the big bonus, Trinity free spins, is triggered by clearing the entire grid, after which you pick a princess: Love gives 4 spins, Star 5, and Storm 8. In the free spins the cascade multiplier does not reset, building up to a maximum of 20x, which is the path to the 5,000x ceiling.
Moon Princess RTP: the version spread
This is the section that matters most. Moon Princess advertises a 96.50% RTP, but Play’n GO, exactly as with Book of Dead and Rise of Olympus, ships several certified versions and the casino picks one. The spread is huge:
| RTP version | House edge | Verdict |
|---|---|---|
| 96.50% | 3.50% | The default; only play this |
| 94.51% | 5.49% | Noticeably worse |
| 91.49% | 8.51% | Bad value |
| 87.50% | 12.50% | Dreadful |
| 84.50% | 15.50% | The worst; a player trap |
Confirm the RTP is 96.50% before you play, and walk away if it is lower. The version is in the in-game info screen, and checking it is the single most valuable habit for any Play’n GO grid slot.
Volatility and max win
Moon Princess is high volatility, rated at the top of Play’n GO’s scale, so expect long stretches of small action for a chance at a big free-spins run. The maximum win is 5,000x your stake, and reviewers rightly note it is hard to reach; it needs a strong Trinity round with the multiplier climbing toward 20x. If you want a bigger ceiling, the sequels Moon Princess 100 and Moon Princess Origins go higher.
Where to play Moon Princess
Moon Princess is available wherever Play’n GO is licensed, with its heartland in the UK and Europe, plus regulated US states (New Jersey, Pennsylvania, Michigan) and crypto casinos. The casinos below carry Play’n GO. Scores are out of 10. Confirm the 96.50% RTP.
| Casino | Our score | Type | Review |
|---|---|---|---|
| BetMGM Casino | 8.9 | Real money | Read review |
| LeoVegas | 8.8 | Real money | Read review |
| bet365 Casino | 8.7 | Real money | Read review |
| DraftKings Casino | 8.4 | Real money | Read review |
| Stake.com | 7.9 | Crypto | Read review |
| BitStarz | 7.4 | Crypto | Read review |
For the studio behind it, see our best Play’n GO casinos guide.
Chip’s verdict on Moon Princess
Moon Princess is a smart, charming game that earned its long life. The three-princess powers give it real depth for a grid slot, the Girl Power feature keeps dead spins interesting, and clearing the whole board to unlock Trinity free spins with that non-resetting multiplier is genuinely satisfying. The anime styling is lovely, and the 96.50% RTP is good.
My honest cautions are the high volatility, the hard-to-reach 5,000x ceiling, and above all the Play’n GO RTP-version lottery, where a careless casino can drop you to 84%. Check the info screen, demand 96.50%, bankroll for the swings, and enjoy one of Play’n GO’s cleverest slots. Score it 4.0 out of 5. See how we rate.
Frequently asked questions
What is the RTP of Moon Princess?
The default RTP is 96.50%, but Play’n GO ships lower versions down to 84.50%, and casinos can run them. Always check the in-game info screen and only play the 96.50% version.
What are the three princesses’ powers?
Love transforms one set of symbols into another, Star adds one or two wilds to the grid, and Storm removes whole sets of symbols. On a non-winning spin, the Girl Power feature triggers one of them at random.
How do you trigger the Moon Princess free spins?
Clear the entire grid to trigger the Trinity free spins, then pick a princess: Love gives 4 spins, Star 5, and Storm 8. The cascade multiplier does not reset in free spins and climbs up to 20x.
What is the max win on Moon Princess?
The maximum win is 5,000x your stake, and it is genuinely hard to reach on such a volatile game. The sequels Moon Princess 100 and Origins offer higher ceilings.
Is Moon Princess high volatility?
Yes, high volatility, at the top of Play’n GO’s scale. Expect long stretches of small action with the big wins concentrated in the Trinity free spins. Bankroll for the swings.
Who makes Moon Princess?
Moon Princess is made by Play’n GO and was released in 2017. The family includes Moon Princess 100, Moon Princess Trinity and Moon Princess Origins.
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Enjoy Moon Princess? Then take a look at Rise of Olympus, Legacy of Dead, Reactoonz and Book of Dead, or browse them all in our slots guide.