Moon Princess is Play'n GO's anime-styled grid slot, released in July 2017 and still one of the studio's most recognisable games. Rather than reels spinning past a payline, it hands you a 5x5 board of symbols and three princesses who lean in from the side and rearrange it. That mix of a puzzle-style board and characters who interfere with it won a following well beyond the usual slots audience and spawned a family of sequels. This page covers the original 2017 release, not the later Moon Princess 100 or Trinity editions, which run to different numbers.
How Moon Princess plays
Wins are formed by connecting three or more matching symbols horizontally or vertically anywhere on the 5x5 grid, so there are no fixed paylines to follow. Winning symbols are removed, whatever sits above them drops down to fill the gaps, and any fresh match pays again. Each successive win in the same sequence nudges the multiplier up a step.
The princesses are the reason the game stuck. Love, Star and Storm take turns standing beside the grid, and on a spin that produces nothing, whichever one is on duty intervenes: Love converts a group of symbols into another symbol, Star drops one or two wilds onto the board, and Storm clears two groups of symbols off it entirely. Wins involving a princess symbol also charge a meter, and filling that meter awards a Princess Trinity spin on which all three powers fire in turn.
Clear every symbol from the grid and the free spins round opens. You choose which princess to take with you, and the choice is a genuine trade-off: Love gives four spins, Star five and Storm eight, with the selected power triggering on every non-winning spin. The multiplier no longer resets between spins in this round, which is where the game's biggest results come from.
Moon Princess RTP, volatility and max win
The default Play'n GO build returns 96.50%, and the studio ships lower versions of the same game at 94.51%, 91.49%, 87.50% and 84.50%. The operator picks which one it runs, so open the in-game information screen and read the figure your casino is actually using.
Volatility is high and the maximum win is 5,000 times your stake. That ceiling is set by the multiplier, which tops out at 20x during free spins; the 2022 Moon Princess 100 lifted that cap and its top prize with it, so anyone arriving from that version will find the original noticeably more restrained. High volatility takes a particular shape here. Ordinary spins pay little or nothing, and the meaningful money is concentrated in the sessions where a full grid clear lands and the multiplier gets time to build. Long stretches without a single clear are normal rather than a sign anything is wrong.
Playing Moon Princess
Moon Princess is stocked almost everywhere, and it is one of the titles UK casinos most often attach free spins to, which is why the operators listed on this page are worth comparing. You can also try the free demo above: it runs on play money with no account and no deposit, and it shows how often a clear actually happens before your own money is involved. Where a casino attaches free spins to the game, they carry that operator's wagering conditions, so read the promotion terms before opting in.
Is Moon Princess worth playing?
It holds up. The board is easy to read, the three powers give you something to watch on dead spins, and the free spins round is one of the few in this format where you make a real decision rather than pressing accept. It suits players who like cascade and grid mechanics and are comfortable waiting, and it suits small stakes far better than large ones given how much of the return sits in a feature you cannot force. Anyone after regular small wins will be happier elsewhere, and anyone chasing a five-figure multiplier should look at the later editions.
Worth naming before you play: Moon Princess is unusually good at looking like it is nearly there. The grid empties in stages, so a spin that strips away most of the board reads as progress even though the next spin owes you nothing. That near-miss quality is what makes a high-volatility game easy to keep feeding, and it is worth watching for in yourself. If you notice you are topping up to finish a clear, or playing on because a session feels unfinished, read our responsible gambling page.
Frequently Asked Questions
The default Play'n GO build of Moon Princess returns 96.50%. Play'n GO also supplies lower versions at 94.51%, 91.49%, 87.50% and 84.50%, and the casino chooses which one it runs, so check the in-game information screen for the figure that applies where you are playing.
Moon Princess pays a maximum of 5,000 times your stake. The cap comes from the win multiplier, which rises to 20x during free spins.
You trigger free spins by clearing every symbol from the 5x5 grid in a single spin sequence. You then pick a princess to bring into the round: Love awards four spins, Star five and Storm eight, and her power activates on every non-winning spin.
Yes. Moon Princess is a high volatility game, so wins are infrequent but can be large. Most of the return sits in the free spins round, and sessions without a grid clear are common.
Yes. The demo on this page runs on play money with no account and no deposit needed, which lets you see the cascades, the princess powers and how often the grid clears before staking anything.
This page covers the 2017 original, where the multiplier stops at 20x and the top win is 5,000x stake. Moon Princess 100 arrived in 2022 with a much higher multiplier ceiling and a bigger maximum win. The grid, the three princesses and the cascade mechanic are shared.