Play Demo
Sun Princess opens with a laugh. Celeste, the anime goddess posted to the right of the reels, lets out a soft chuckle as the game loads, and from there, the mood settles into pure tranquillity. The soundtrack could pass for a spa playlist, light glances off the crown behind her and across to the archway on the left, and leaves drift down on a breeze you can almost feel. Then the reels settle, a Sun Ray Frame catches, and light tears across the grid, flipping entire rows into matching symbols and bursting clusters apart like a small star going off. Gentle as it all looks, the Sun Rays can build to a serious payout, and the demo is the easy way to feel that out in free play.
Every win starts with a connected cluster of five or more matching symbols, but the Sun Ray Frames are what turn a modest cluster into something bigger. One can land on a low symbol, a high symbol or a Wild at the start of a spin, and once that spin’s wins are paid, it activates, throwing straight beams that convert every symbol in their path to its own type.
Land a beam on a Wild, and it picks up an additive 2x multiplier that grows by another 2x each time a ray strikes it, and several wild multipliers in one win are added together before they apply to the total.
A Chain Reaction keeps the spreading going. A ray that lands on another symbol of the same type sets off a new frame from that symbol, which spreads again, and the sequence can run until the board is full. It is how a single frame can flood the grid and stack several wins into one spin.
Land enough Celeste scatter symbols in a single spin, and you drop into one of three free spins rounds, each starting at ten spins and building on the one below it.
Extra scatters landing inside a round add spins as you go, two more for a pair and four for three.
There is also a shortcut to the features. The Buy Bonus button opens Hacksaw’s FeatureSpins options, where BonusHunt and Stellar FeatureSpins guarantee certain features on every paid spin and stay on until you switch them off, while direct buys drop you into Solaris Grove or Sunfire Palace. Each option carries its own RTP, all sitting close to the base figure.
A win needs no paylines here. Five or more matching symbols touching anywhere across the seven-by-seven grid form a cluster, and the more that connect the more they pay, all the way to a full board of forty-nine. The Sun Ray Frames and their chain reactions are what push clusters toward that size, and the headline 10,000x your bet is reachable in every mode the game offers.
A spin can cost anywhere from €0.10 to €100. The default RTP is 96.3%, with leaner builds down toward 86% available to operators. The in-game volatility sits at medium, three of five on the meter, so small clusters land often while the bigger hits ride on the Sun Ray spreads and the bonuses.
The red sunrise crest tops the symbols and matches the Wild on a full grid, and the labels below describe each symbol as it appears on the reels.
| High symbol | 5 | 20–24 | 49 (full grid) |
|---|---|---|---|
| Green bloom | €0.60 | €12.50 | €1,000 |
| Blue bloom | €0.70 | €15.00 | €1,500 |
| Purple crescent | €0.80 | €20.00 | €2,000 |
| Golden sun | €0.90 | €25.00 | €2,500 |
| Red sunrise | €1.00 | €30.00 | €10,000 |
| Green gem | €0.10 | €4.00 | €300 |
| Blue gem | €0.20 | €5.00 | €360 |
| Purple gem | €0.30 | €6.00 | €450 |
| Orange gem | €0.40 | €8.00 | €600 |
| Red gem | €0.50 | €10.00 | €750 |
Each figure is the win at a €1 stake. Clusters pay from five connected symbols up to a full grid of forty-nine, with the Wild covering every paying symbol.
Sun Princess wins you over with how it feels before it wins you over with what it pays. The art, the relaxing soundtrack and the little flourishes, symbols that swell and chime as they land, give it a personality most cluster games do not bother with, and the Sun Ray spreads are a clever engine that keeps the board changing shape. It earns its 4 on that craft and on how smartly the spreads turn a small cluster into a big one.
The presentation does a lot of the work. Celeste’s chuckle, the spa-calm soundtrack and the way winning symbols swell and turn with a soft chime make even an ordinary spin pleasant to sit through, and the Sun Ray spreads give the grid a constantly shifting shape. When a chain reaction takes hold and the board floods with one symbol behind a stack of wild multipliers, the payoff feels earned rather than handed over. The three free spins tiers, and the sticky multipliers that build through Sunfire Palace, give the bonuses real range.
In the base game the wins hinge on a Sun Ray Frame landing; without one, clusters tend to pay in small change, so the quiet spells can stretch. The sheer number of symbols and overlapping features also takes a little time to read at first. Free play in the demo is the sensible place to learn its rhythm before staking anything.
The presentation is the first thing you notice. Sun Princess looks and sounds like little else we have played lately, an anime scene built around Celeste, the sun princess, who stands beside the reels in a flowing white-and-gold dress with light glancing off her crown onto the wall behind. Leaves drift past the archway, the soundtrack sits somewhere near spa music, and the board itself is framed in warm sunrise yellow. Small touches sell it, like the way a winning symbol swells, turns a little and chimes before settling back. It is a slot you can happily just sit and watch.
Underneath the calm, the Sun Ray Frames are what build a win. A single frame can land, spread its beams across the grid, convert a run of symbols and leave a paying cluster where there was nothing, and a chain reaction can carry that on until the board is nearly full. Our first bonus, the ten-spin Solaris Grove, showed the loop in miniature, two frames firing into a chain reaction with a pair of 2x multipliers stacked on, which built two big €30 clusters and a few smaller hits for a €65.10 round. Watching the light spread while the win counter climbs in the middle of the board is the main appeal.
As the bonuses are where the bigger wins tend to come from, we bought into Sunfire Palace, which keeps the Solaris Grove rules but makes any Wild a ray touches turn sticky, holding and growing its multiplier to the end of the round. A 2x at multiplier at the bottom of the grid climbed to 8x across the spins, two extra spins arrived on spin nine, and the final spin set off a chain reaction worth a €600 epic win, closing the round at €721.70.
A run of Stellar FeatureSpins earlier, at 50x the stake per spin, had played out the same way, one €150 hit carrying the round while the spins around it came in small.
One more spin to close the demo triggered another Sunfire Palace round, and it limped in at €14.70, a reminder that the swings really live in the bonuses, one paying €600 and the next barely landing. Small clusters drop often enough to keep regular spins ticking over, even as those headline wins stay rare. Beautifully made and full of character, Sun Princess has a personality few grid slots can match.
