Most sites discussing Moon Princess share similar information. This Play'n GO slot features an anime theme and three princesses known as Love, Star and Storm. You win by matching symbols that disappear and cascade, while a multiplier increases as they drop. This guide to Moon Princess slot RTP versions and Australian online gambling law explained provides more detail. It separates confirmed rules from claims made in reviews and identifies what isn't known regarding payout settings. It also explains the legal implications for people in Australia.
The legal position in Australia
It is unlawful to offer online slots to individuals physically located in Australia. Both offshore and Australian providers are subject to this rule under the Interactive Gambling Act 2001. According to the Department of Infrastructure's page on the Act, last updated on 28 October 2026, it remains illegal to provide online casinos, such as online pokies, to people in Australia, and no exception for slots is listed.
ACMA classifies online casino services as banned services. These cannot be advertised in Australia, and ACMA blocks the websites of illegal offshore providers. The Act places the offences on providers rather than players.
Since no online casino can obtain a licence here, there is no Australian stake cap and no RTP minimum for online slots. Local law contains nothing that dictates the amount a slot like Moon Princess must pay back from the money staked. BetStop, which is the national self-exclusion register, applies to licensed phone and online wagering, not casino games.
A grid slot, not a payline game
A popular review describes Moon Princess as a 20-payline, five-reel slot, but this is incorrect. According to Play'n GO, it is a grid slot that came out on 26 July 2017. Players win when three or more matching symbols connect vertically or horizontally across a 5×5 grid. No paylines exist.
The main gameplay loop functions as follows:
- Symbols part of a winning combination vanish.
- Symbols from above fall into the empty spaces, which can create further wins during the same spin.
- The prize multiplier increases every time new symbols fall.
The features, as Play'n GO describes them
Wild Moon
The Wild Moon replaces the middle symbol within a winning combination. It subsequently substitutes for other symbols during the following drop.
The three princess powers
When a spin doesn't result in a win, one of the princesses may appear randomly to modify the grid:
- Love changes symbols.
- Star inserts wilds.
- Storm clears symbols.
Princess Trinity
The Princess Trinity meter fills when three or more matching symbols form winning combinations. A special re-spin starts once the meter is full. During this re-spin, Storm, Star and Love use their powers in turns.
Free spins and the planetary prize
Free spins with an increasing multiplier are granted for removing all 25 symbols from the board. Play'n GO states that the multiplier can reach 20 times the standard prize.
The player chooses the quantity of free spins and which princess's power will work during that time. A casino site mentions 4, 5 or 8 spins based on the selection, though Play'n GO's page does not specify spin amounts. Consider these figures unconfirmed.
A planetary prize worth 100 times the total bet is paid if all 25 symbols are cleared again while in free spins. Free spins can retrigger up to 20 times consecutively.
RTP versions: what's known and what isn't
RTP is the percentage of all money staked that a slot returns to players over a vast number of spins. Many modern slots are released in various versions featuring different RTPs. The casino running the game chooses which version to offer, not the player and not the provider.
Regarding Moon Princess, the available information consists mainly of gaps:
- Play'n GO's official game page doesn't list an RTP, volatility, stake range, or maximum win.
- Sites that rank well for this game fail to provide a testing-lab certificate or an official help sheet. It isn't possible to determine which versions are available or which one serves as the default based on their RTP claims.
- There is no confirmation of stake ranges. A single operator's page mentions €0.20–€100, but this isn't a figure from the provider.
So this guide can't provide a dollar amount for the difference between versions. Any such figure would be based on unverified numbers.
Where the version shows up
The relevant number is the one displayed within the game. Check the help screen or the rules, which the menu or "i" button usually opens. That casino is using the version listed there if an RTP appears. A percentage found on a review site refers to a particular version of the game, but it isn't necessarily the one you are playing.
The accurate RTP remains a long-run average based on millions of spins. It doesn't predict a single session. Regardless of the setting, view any play as paid entertainment and follow limits you've set beforehand.
Trying it without money
A free version of Moon Princess is available on Play'n GO's site. The provider states that its site is for entertainment purposes only and doesn't offer real-money play. This provides a straightforward way to observe the behaviour of the princess powers and cascades before reading claims about them in any review.