Sun Princess Slot Review and Free Demo

Quick Verdict: Sun Princess is Hacksaw Gaming's third foray into anime-inspired slots, following Cloud Princess and Rainbow Princess, and it might just be their most polished yet. With a sprawling 7x7 grid, an innovative Sun Ray Frame spreading mechanic, and a serene Japanese garden aesthetic, this October 2025 release offers a refreshing counterpoint to the studio's grittier titles. The 10,000x max win and 96.29% RTP make it worth a spin for anyone seeking medium-volatility action with genuine visual flair.

Introduction: A New Dawn for Hacksaw's Princess Series

When Hacksaw Gaming released Cloud Princess, some players weren't sure what to make of it. This was the studio behind gritty hits like Wanted Dead or a Wild and Chaos Crew—what were they doing with ethereal anime princesses?

Then came Rainbow Princess. Then Aiko and the Wind Spirit. Slowly, a pattern emerged: Hacksaw was deliberately building a portfolio of beautifully rendered, lower-volatility slots to balance their extreme offerings. Sun Princess, released in October 2025, is the latest and most accomplished entry in this series.

Don't let the name fool you—this isn't a spin-off of Play'n GO's beloved Moon Princess. This is an entirely original creation, set in a sun-drenched Japanese garden where a golden-crowned princess watches over a 7x7 grid of gemstones and royal artifacts. The soundtrack, featuring gentle harp and string instruments, creates an atmosphere of serenity that's rare in online slots.

But beneath the tranquil surface lies surprisingly sophisticated gameplay. The Sun Ray Frame mechanic—where glowing frames shoot beams across the grid, transforming symbols and triggering chain reactions—offers genuine depth. And with three distinct bonus rounds, sticky wilds with growable multipliers, and a 10,000x max win, there's plenty here for experienced players too.

Let's step into the princess's garden.

Key Specifications at a Glance

Gameplay Mechanics: Where Sunbeams Create Wins

The 7x7 Grid and Cluster Pays

Sun Princess unfolds on a generous 7x7 grid using a cluster pays system. Wins are formed when 5 or more matching symbols connect vertically or horizontally. Unlike many cluster games, there's no cascading mechanic here—instead, the spreading Sun Ray Frames handle symbol transformation.

The paytable is split into two tiers:

Low-paying symbols: Colored gemstones (green, blue, purple, orange, red). A full grid of 49 matching gems pays between 300x and 750x your bet.

High-paying symbols: Royal artifacts—a brooch, hat, vase, golden orb, and tiara. A full grid of any high payer awards between 1,000x and 10,000x your bet.

Wilds appear as a glowing green "W" entwined in vines. They substitute for all paying symbols, and a full grid of wilds pays the same as the most valuable high symbol (10,000x).

Sun Ray Frames: The Heart of the Game

The Sun Ray Frame mechanic is where Sun Princess distinguishes itself. At the start of a spin, a single Sun Ray Frame may land on any symbol (pay symbol or wild). It remains dormant until after all initial wins are evaluated.

Then, it activates—and this is where the magic happens.

The Frame shoots beams of energy in specific directions, depending on its arrow indicators:

Vertical arrows: Beams spread up and down to the grid edges

Horizontal arrows: Beams spread left and right

Four-way arrows: Beams spread in all four directions

Every symbol touched by these beams transforms into the same symbol as the Frame's original position. If the beam hits a wild, that wild gains a x2 multiplier (and this multiplier increases by x2 each time that wild is struck again).

After transformation, a new win evaluation occurs. Multiple multipliers in the same win are added together before application.

Chain Reaction: When Frames Multiply

Here's where things get genuinely exciting. If a Sun Ray beam passes over a symbol that matches the Frame's original symbol, it triggers a Chain Reaction.

A new Sun Ray Frame is placed on that matching symbol, which then activates and spreads according to its own direction arrows. This can continue indefinitely—as long as beams keep hitting matching symbols, new Frames keep appearing.

In theory, a single initial Frame could fill the entire 7x7 grid with matching symbols through chain reactions. In practice, this creates moments of genuine tension as you watch the beams propagate, hoping they'll keep finding matches.

Bonus Features: Three Paths to the Sun

Sun Princess offers three distinct free spins bonuses, each triggered by landing FS scatter symbols (depicting the princess herself).

1. Solaris Grove Bonus (3 Scatters)

10 free spins with a straightforward enhancement: the chance of landing Sun Ray Frames is significantly increased compared to the base game.

This is your entry-level bonus. It's reliable, it's frequent, and it's the perfect environment for understanding how Sun Ray Frames and Chain Reactions behave without additional complexity. Landing 2 or 3 more scatters during the round awards +2 or +4 extra spins respectively.

2. Sunfire Palace Bonus (4 Scatters)

10 free spins with all Solaris Grove mechanics, plus a game-changing addition: Sticky Wilds.

When a Sun Ray Frame beam passes through a wild symbol:

That wild gains a x2 multiplier (increasing by x2 each time it's hit)

The wild becomes sticky, remaining on the grid for the entire bonus round

These sticky wilds can accumulate over multiple spins, and each can have its multiplier grow repeatedly. A wild that gets hit five times becomes a x32 multiplier wild that stays on the grid forever. Multiple such wilds in play simultaneously create enormous potential.

3. Golden Eclipse (5 Scatters – Hidden Epic Bonus)

10 free spins with all Sunfire Palace mechanics, plus the ultimate enhancement: at least 1 Sun Ray Frame is guaranteed on every single spin.

This is the premium destination. With guaranteed Frames every spin, sticky wilds accumulating, and multipliers growing, the 10,000x max win becomes genuinely achievable. The combination of guaranteed Frames and persistent wilds creates exponential growth potential that the lower tiers can't match.

Important: As with most Hacksaw "Hidden Epic" bonuses, Golden Eclipse cannot be purchased. It must be triggered naturally by landing five scatters.

FeatureSpins & Bonus Buy Options

For players in eligible jurisdictions, Sun Princess offers several acceleration paths:

The 2x BonusHunt cost is notably cheaper than Hacksaw's usual 3x, reflecting the game's medium volatility. Stellar FeatureSpins at 50x is reasonably priced for guaranteed Frames.

Volatility, RTP, and Max Win: The Numbers

RTP: Up to 96.29%

Sun Princess offers a top-tier RTP of 96.29% , which is above industry average. However, operators can choose lower configurations (94.25%, 92.35%, and 86.25%), so always verify the game rules at your chosen casino.

Volatility: Medium

Officially rated medium volatility, Sun Princess is one of Hacksaw's most accessible titles. The hit frequency of 47% means you'll see wins on nearly half of all spins—a far cry from the 20-30% hit rates of high-volatility games.

This makes it an excellent choice for:

Players new to Hacksaw's portfolio

Those seeking longer sessions with steady engagement

Anyone who enjoys the mechanics but prefers less extreme swings

Max Win: 10,000x

The Sun Princess max win is 10,000 times your total stake. At the maximum bet of €100, this translates to a potential payout of €1,000,000.

Achieving this requires:

Triggering Golden Eclipse (5-scatter premium bonus)

Accumulating multiple sticky wilds with high multipliers

Benefiting from Chain Reactions that fill the grid with matching high-value symbols

The Bigwinboard review notes that the 10,000x cap is "achievable in any mode," though realistically, Golden Eclipse offers the most direct path.

Pros and Cons: The Good, The Radiant, The Familiar

Why players are visiting the princess's garden:

✅ Beautiful, serene presentation – The Japanese garden aesthetic, harp soundtrack, and anime art style create a genuinely relaxing atmosphere. It's a welcome palette cleanser between gritty Hacksaw titles.

✅ Sun Ray Frame mechanic is genuinely engaging – Watching beams propagate across the grid, triggering chain reactions, creates real tension and excitement. The Bigwinboard review calls it "a more sophisticated slot than first suspected".

✅ Sticky wilds with growable multipliers – In Sunfire Palace and Golden Eclipse, wilds that persist and multiply create legitimate long-term strategy. You're not just spinning—you're building.

✅ Excellent hit frequency (47%) – Medium volatility with steady engagement makes this accessible to a wide audience. You'll rarely go long without a win.

✅ Three distinct, meaningful bonus rounds – Solaris Grove (increased Frames), Sunfire Palace (sticky wilds), and Golden Eclipse (guaranteed Frames + sticky wilds) offer clear progression.

✅ Reasonable bonus buy pricing – 80x and 200x for the two purchasable bonuses is fair, and 2x BonusHunt is a bargain.

A few clouds in the sky:

❌ Familiar mechanics for Hacksaw veterans – If you've played Rainbow Princess or Aiko and the Wind Spirit, the spreading-frame, tiered-bonus structure will feel very familiar.

❌ RTP variants exist – The 86.25% version is dangerously low. You must verify you're playing the 96.29% configuration.

❌ No cascading mechanic – Some players may miss the tumble/cascade feature common in cluster games. Chain Reactions fill part of that gap, but it's not the same.

❌ Golden Eclipse is rare – Five-scatter triggers always are. Some players may never experience the game at full power.

❌ Not for high-volatility seekers – If you crave extreme swings and 150,000x potential, this isn't your game. It's designed for balance, not brutality.

Tips for Your Sun Princess Journey

Start with the Sun Princess demo. The free play mode is essential for understanding how Sun Ray Frames behave, how Chain Reactions propagate, and how sticky wilds accumulate. The 47% hit frequency means you'll see plenty of action while learning.

Verify your RTP. Before playing for real, check the game rules and confirm you're on the 96.29% version. The difference between 96.29% and 86.25% is massive over time.

Respect the medium volatility. 47% hit frequency is generous, but wins will often be small. Set expectations accordingly—this is a game for steady engagement, not instant riches.

Understand Chain Reaction potential. The magic happens when beams keep hitting matching symbols. Watch the propagation carefully—a single Frame can fill the entire grid if conditions align.

If buying bonuses, Sunfire Palace (200x) is the sweet spot. Sticky wilds with growable multipliers transform the game. Solaris Grove (80x) is solid, but the persistent wilds in Sunfire Palace offer genuine strategic depth.

Celebrate Golden Eclipse. It's rare, it's earned, and with guaranteed Frames every spin plus sticky wilds, it's your best shot at 10,000x. When those five scatters finally land, take a moment to appreciate it.

Frequently Asked Questions (FAQ)

What is the RTP of Sun Princess?
The highest RTP configuration is 96.29%. Lower versions (94.25%, 92.35%, 86.25%) exist, so always verify the game rules at your casino .

How do I trigger free spins in Sun Princess?
Land 3, 4, or 5 FS scatter symbols to trigger Solaris Grove (10 spins, increased Sun Ray Frames), Sunfire Palace (10 spins, sticky wilds with multipliers), or Golden Eclipse (10 spins, guaranteed Frames + sticky wilds) respectively.

What are Sun Ray Frames?
Glowing frames that land on symbols and, after win evaluation, shoot beams in vertical, horizontal, or all-four directions. Every symbol hit transforms into the Frame's original symbol. Beams hitting wilds add x2 multipliers.

What is Chain Reaction?
If a Sun Ray beam hits a symbol matching the Frame's original, a new Frame is placed on that symbol and activates, potentially creating cascading transformations.

How do sticky wilds work in Sunfire Palace?
Wilds hit by Sun Ray beams gain a x2 multiplier and remain on the grid for the entire bonus round. Their multiplier increases by x2 each time they're hit again.

What is the maximum win?
The Sun Princess max win is 10,000 times your total stake. At max bet (€100), this equals €1,000,000.

Can I play Sun Princess for free?
Yes. You can play a Sun Princess demo version with virtual credits on this page. Perfect for learning the mechanics risk-free.

Is Sun Princess a high-volatility slot?
No, it's rated medium volatility with a hit frequency of 47%. This makes it one of Hacksaw's most accessible titles.

Can I buy the bonus feature?
Yes, where permitted. You can purchase Solaris Grove (80x bet) and Sunfire Palace (200x bet) directly, plus FeatureSpins modes. Golden Eclipse cannot be purchased.

Final Verdict: A Radiant Addition to Hacksaw's Catalog

Sun Princess won't satisfy players seeking the extreme volatility of Wanted Dead or a Wild or the 150,000x potential of San Quentin. But that's not its purpose.

This is Hacksaw Gaming demonstrating range—proving they can craft beautiful, accessible, medium-volatility experiences without sacrificing mechanical depth. The Sun Ray Frame mechanic is genuinely engaging, the Chain Reaction system creates moments of genuine tension, and the sticky wilds with growable multipliers in Sunfire Palace offer strategic depth that rewards patient play.

For players new to Hacksaw, Sun Princess is an ideal entry point—forgiving hit rates, clear mechanics, and a serene atmosphere that invites extended sessions. For veterans, it's a polished addition to the "princess" series that executes its concepts flawlessly, even if those concepts feel familiar.

The 10,000x max win is achievable, the RTP is solid, and the presentation is among Hacksaw's best. If you're looking for a slot that balances beauty with brains, Sun Princess deserves a place in your rotation.

The princess is waiting. The sun is shining. The frames are ready to spread.