🇬🇧 UK Players 🕐 Updated daily ⚡ New slots weekly NEW
Privacy Policy Contact 18+ | Responsible Gaming
Sign In Join Free
Join Free
Play’n GO · Slot Review

Moon Princess Trinity — Full Review & Free Demo

3.9/5
Play for Real →
RTP
96.20%
Volatility
High
Max Win
4,000x
Provider
Reels
5
Bet Range ($,€,£)
0.10 - 100
Rating
3.9/5
Released
Mar 2023

Moon Princess Trinity: Slot Overview

Moon Princess Trinity is the fourth entry in Play'n GO's long-running anime princess series, built on a 5x5 Cluster Pays grid. Winning combinations of three or more matching symbols form horizontally or vertically, then cascade off the board. No new symbols drop in from above; instead, every win leaves behind a wild. High volatility, 96.2% default RTP, and a 4,000x ceiling. For serious players coming from Moon Princess 100, that cap is an immediate red flag.

Bets range from 0.10 to 100 per spin. No bonus buy option exists, so you grind for the Trinity feature the old-fashioned way. I have mixed feelings here; the pacing is fast and the cascade mechanic keeps spins moving, but the reduced symbol values and lower max win compared to every other game in this series make me question who this version is really aimed at.

Paytable and Symbol Values

Premium symbols are the three princesses: Love, Star, and Storm. Each pays 3x the bet for a five-of-a-kind. A mixed five-of-a-kind using any combination of princesses pays 2x. Compare that to the original Moon Princess, where a 5 OAK princess win paid 10x. Massive reduction. Four lower-paying symbols (circles, stars, hearts, bells) all return just 1x the bet for five-of-a-kind.

Wild symbols, spawned by every winning combination, pay 5x for a full five-of-a-kind wild line and substitute for all pay symbols. The paytable is thin. With base values this compressed, the game leans entirely on the win multiplier climbing during long cascade chains to produce anything meaningful. Without that multiplier running hot, individual wins feel flat.

Symbol Payouts

icon 1
Wild
5x5
4x1
3x0.5
icon 2
5x3
4x0.6
3x0.3
icon 3
5x3
4x0.6
3x0.3
icon 4
5x3
4x0.6
3x0.3
icon 5
5x1
4x0.2
3x0.1
icon 6
5x1
4x0.2
3x0.1
icon 7
5x1
4x0.2
3x0.1
icon 8
5x1
4x0.2
3x0.1

Bonus Features Breakdown

Cascading wins are the engine. Winning symbols are removed, remaining symbols drop down, and a wild takes one empty position. No fresh symbols refill from the top, which means the grid slowly empties. Random positions are highlighted with blue lines; landing a win on a highlighted spot bumps the win multiplier by +1. Multiplier resets between paid spins but persists through an entire cascade chain and into Trinity.

Girl Power modifiers activate on non-winning spins or at the end of a dead cascade. Love converts one symbol type into another. Star adds 1-2 wilds to the grid. Storm removes two symbol types entirely, forcing a cascade. Only the princess currently displayed beside the reels can trigger her power, so there is a random element you cannot control.

Filling a 6-segment meter triggers Trinity. Princess wins of 3, 4, or 5 symbols fill 1, 2, or 3 segments respectively, meaning you need multiple princess hits in a single cascade sequence. Once triggered, all three modifiers fire in succession during one free round. Clearing the grid re-triggers Trinity without resetting the multiplier. Outside Trinity, a full grid clear pays 50x the bet outright. No traditional Free Spins round exists; Trinity is your only bonus event.

Bonus Buy Options

Bonus Buy Trinity
Trinity
Fill a 6-segment meter through princess symbol wins to trigger one free round where Love, Star, and Storm each perform their modifier. Clearing the grid re-triggers the feature without resetting the win multiplier.
Bonus Buy Girl Power
Girl Power
On non-winning spins, the active princess may trigger her unique modifier: Love converts symbols, Star adds wilds, Storm removes two symbol types.
Bonus Buy Clear Grid
Clear Grid
Clearing all symbols from the grid outside of the Trinity feature awards an instant 50x the bet prize.

Volatility, RTP, and Max Win

96.2% default RTP is respectable, but Play'n GO ships this with five RTP configurations. Always verify the setting at your casino. High volatility paired with a 4,000x ceiling is the core problem here. Moon Princess 100 offered far greater upside, and even the 2017 original had 5,000x. For the variance you absorb, the ceiling is too low for this level of risk.

Dead spins are common in any cluster-pays game without symbol refills from above. When the cascade dies early and no Girl Power triggers, you simply lose the spin. With a proper bankroll, you can weather the dry stretches, but the payoff when things connect still caps at a figure I would expect from a medium-volatility release, not a high one.

💬 What Players Say
Players familiar with the Moon Princess series generally find Trinity entertaining but note the reduced max win and lack of traditional free spins as drawbacks compared to earlier versions. Based on 3 reviews.
Ryan Cole’s Verdict

Final Verdict

Moon Princess Trinity plays smoothly. I will give it that. The cascade-to-wild mechanic keeps energy up, and the Trinity re-trigger loop during grid clears can build satisfying multiplier stacks. Play'n GO clearly wanted a faster, more condensed experience without traditional Free Spins. As a casual session slot, it works.

From a high-roller and bonus-hunting perspective, I cannot recommend it over Moon Princess 100. Symbol payouts have been gutted, the max win dropped to 4,000x, and there is no bonus buy to accelerate access to Trinity. You are grinding a high-volatility game for a medium-volatility reward. If you already enjoy the original series and want a slightly different flavour, fine. But if bankroll efficiency and win ceiling matter to you, stick with the 100 version.
3.9
★★★★☆
out of 5
✓ Pros
Win multiplier builds indefinitely during cascades
Wilds spawn from every winning combination
Trinity re-triggers on grid clear without resetting multiplier
96.2% default RTP sits above average
Smooth fast-paced gameplay loop
✗ Cons
4,000x max win is low for this volatility
Symbol payouts significantly reduced from original
No traditional free spins round
Five adjustable RTP configurations risk lower settings
Ryan Cole
Ryan Cole
Lead Casino Slots Analyst
5+ years analysing online slots for the UK market. Every game is played for a minimum of 500 demo spins before publication. No affiliate bias — ever.
View All Reviews →
Moon Princess Trinity FAQ
How does the Trinity feature trigger in Moon Princess Trinity?
You need to fill a 6-segment meter by landing princess symbol wins during a single cascade sequence. A 3, 4, or 5-of-a-kind princess win fills 1, 2, or 3 segments respectively. Once full, Love, Star, and Storm each fire their modifier in one free round.
Why is the max win lower than previous Moon Princess slots?
Moon Princess Trinity caps at 4,000x the bet, down from 5,000x in the original and significantly below Moon Princess 100. The reduced symbol payouts (3x vs 10x for premium 5-of-a-kind) appear designed to offset the building multiplier mechanic, but the net effect is a lower ceiling.
Does Moon Princess Trinity have a bonus buy option?
No. There is no bonus buy feature. You must trigger the Trinity round organically through cascading princess symbol wins, which makes this less appealing for bonus hunters who prefer direct access.
How do wilds work differently in this version compared to the original?
Every winning combination leaves behind a wild symbol in one vacated position. No new symbols drop in from the top after a cascade; only existing symbols shift down. This means wilds accumulate on the grid as it empties, creating chain reaction potential.
What happens if you clear the grid during the Trinity round?
Clearing the grid during Trinity re-triggers the feature, and critically, the win multiplier does not reset. This loop is how the biggest wins are built, as the multiplier keeps climbing across consecutive Trinity rounds.