Sun Princess

Sun Princess is a cluster-pays video slot from Hacksaw Gaming, played on a 7x7 grid where winning combinations require at least five matching symbols connected horizontally or vertically. Released as the third entry in the studio's anime-styled Princess series, following Cloud Princess and Rainbow Princess, the game carries an RTP of 96.29%, medium volatility, and a maximum win of 10,000x the bet. Stakes range from 0.10 to 100 per spin.

The cluster-pays engine is a notable departure for Hacksaw Gaming, a studio far more commonly associated with unconventional payline counts and mechanic-heavy frameworks. Cluster pays on a 7x7 grid is a well-established format across the wider market, yet only a handful of Hacksaw titles have adopted it. Perhaps more striking is the absence of cascading wins, a mechanic that almost universally accompanies cluster-pays slots in modern releases. Instead, the game leans on its proprietary Sun Ray Frames and Chain Reaction system to generate follow-up action, a distinctive if polarising design choice.

With a 47% base game hit frequency, the slot sits on the generous side for a medium-volatility title, suggesting a session profile built around regular small returns punctuated by feature-driven spikes. The 96.29% RTP is competitive and sits marginally above the current industry average, though it falls below the highest-returning titles in the provider's own catalogue.

The paytable comprises ten regular symbols split evenly between low-paying and high-paying tiers, plus a wild and a scatter. Low pays are represented by coloured gemstones in green, blue, purple, orange, and red, awarding between 300x and 750x the bet for a full grid of 49 matching symbols. High pays feature thematic items -- a brooch, a hat, a vase, a golden orb, and a crown -- with full-grid values ranging from 1,000x up to 10,000x the bet for the crown, the single highest-paying symbol.

These full-grid payouts are exceptionally steep compared to most cluster-pays slots on the market, where top symbol values rarely exceed a few hundred times the bet for maximum clusters. The rationale is clear: without cascading wins removing and replacing symbols, each individual spin must carry enough raw value to justify the mechanic's absence. Wild symbols substitute for all paying symbols and can accumulate multipliers when struck by Sun Ray Frames, starting at x2 and incrementing by x2 with each subsequent hit. Multiple wild multipliers within the same cluster are summed before application, a common additive approach rather than a multiplicative one.

The core feature mechanic is the Sun Ray Frame, which may appear on any pay symbol or wild at the start of a spin. After initial wins are evaluated, the frame activates and spreads in a straight line -- vertically, horizontally, or in all four directions -- converting every symbol in its path to match the one it landed on. Only one Sun Ray Frame can land organically per spin, but the Chain Reaction system compensates: if the spreading ray passes over a symbol already matching its type, a new frame spawns on that position and fires again. This chain continues until no further matches occur or the grid fills entirely.

This spreading-and-chaining loop is essentially the replacement for the cascading mechanic that players would expect in a cluster-pays game. It is a recognisable evolution of the symbol-transformation features Hacksaw Gaming has deployed across its portfolio, though the directional ray system and chain trigger condition add layers not seen in the studio's earlier implementations. The interaction with wilds is where multiplier growth occurs, a design that rewards prolonged chain activity rather than single large clusters.

Three tiered free spins modes scale in power. Solaris Grove, triggered by three scatters, grants 10 spins with an increased Sun Ray Frame landing rate. Sunfire Palace requires four scatters and adds sticky wilds that persist for the round's duration, accumulating multipliers each time a ray passes through them. The Golden Eclipse hidden bonus, needing five scatters, layers a guaranteed Sun Ray Frame on every spin atop the Sunfire Palace rules. Retriggers of two or four extra spins are available across all three modes. This tiered structure is a common approach in modern releases from the provider, echoing the escalating bonus architecture seen in several of their recent titles.

Four purchasable options are available, which is generous by market standards where two or three buy-in tiers are more typical. BonusHunt FeatureSpins at 2x the bet triple the probability of triggering a bonus round, while Stellar FeatureSpins at 50x guarantee at least one Sun Ray Frame per spin. Direct bonus purchases include Solaris Grove at 80x and Sunfire Palace at 200x the bet. The Golden Eclipse bonus cannot be purchased, preserving it as an organic-only event -- a deliberate scarcity tactic that Hacksaw Gaming frequently employs for its highest-tier hidden bonuses.

The 200x price point for Sunfire Palace is notably higher than the typical 100x bonus buy seen in many mid-volatility slots, reflecting the sticky wild multiplier mechanics embedded within it. Each buy option carries its own listed RTP, ranging from 96.25% to 96.38%, a transparency measure that is becoming standard practice among top-tier providers but is still not universal across the industry.

Visually, the slot continues Hacksaw Gaming's anime-influenced design language, placing the titular princess in a sunlit garden setting outside a palace. The art direction is consistent with the studio's growing catalogue of softer, feminine-themed titles, offering a deliberate counterbalance to grittier productions in its portfolio. A gentle harp-based soundtrack reinforces the serene atmosphere. The interface follows the studio's characteristically minimalist layout, keeping controls uncluttered and ensuring the 7x7 grid remains the focal point across desktop, tablet, and mobile devices.

Sun Princess is a confident addition to Hacksaw Gaming's expanding anime series, built around a spreading mechanic the studio clearly favours but refined here with Chain Reactions and directional ray variations that add genuine tactical depth. The decision to omit cascading wins from a cluster-pays grid is unusual for the current market and will divide opinion, though the Sun Ray and Chain Reaction loop provides an alternative source of follow-up action that can, in the right scenario, fill the entire board.

With a fair RTP, a 10,000x cap that is standard for the provider's mid-volatility bracket, and a tiered bonus structure that rewards patience with increasingly powerful mechanics, the slot occupies a comfortable mid-market position. It does not rewrite the rulebook, but the layering of multiplier-accumulating sticky wilds, guaranteed frames in the top-tier bonus, and a well-priced feature buy menu gives it enough substance to stand alongside the stronger entries in Hacksaw Gaming's 2025 output.