Executive Summary
- Character-Driven Grid Mechanics: Utilizes a 5×5 grid where three unique goddess modifiers (Sekhmet, Hathor, and Bastet) trigger sequentially to manipulate the symbol configuration.
- Variable Win Multipliers: Features a “Goddess Power” system and an “Eye of Ra” multiplier mechanic that increases the payout potential of cluster connections during cascading sequences.
- Non-Resetting Bonus Multipliers: Implements a Free Spins round where the win multiplier carries over between spins, aimed at facilitating the 15,000x maximum win threshold.
1. Technical Specifications
| Feature | Details |
| Provider | Play’n GO |
| RTP | 96.20% (Variable) |
| Volatility | High |
| Max Win | 15,000x |
| Layout | 5×5 Cluster Grid |
2. Theme and Atmosphere
Sisters of the Sun is set against a shifting desert landscape of Ancient Egypt, focusing on the mythological descendants of the Sun God Ra. The visual presentation is characterized by high-fidelity character art for Sekhmet, Hathor, and Bastet, who appear beside the grid to exert their influence. The sound design employs traditional Egyptian woodwinds and percussive elements, which scale in intensity as the “Goddess Power” features are activated.

3. Core Gameplay & Mechanics
The game operates on a 5×5 cascading grid using a Cluster Pays system, where wins are formed by three or more matching symbols in a row (horizontally or vertically). When a winning combination is cleared, it is not replaced by new symbols falling from above; instead, the remaining symbols drop to create new potential connections. A central mechanic is the Eye of Ra: random positions on the grid are marked, and landing a win over these spots increases the win multiplier by +1 for the duration of the cascade.
4. Special Features & Bonus Rounds
The technical depth of the title is defined by the interaction between the goddesses and the grid:
- Goddess Power: On non-winning spins, one of three random modifiers may trigger:
- Sekhmet: Transforms one symbol type into another.
- Hathor: Adds one or two Wild symbols to the grid.
- Bastet: Removes two symbol types from the grid.
- Sisterhood Feature: Triggered by landing a single Scatter symbol. This grants a single round where all three Goddess Powers trigger sequentially to help clear the grid.
- Free Spins: Triggered by clearing the entire grid during the Sisterhood feature. Players select one of the three goddesses, determining the number of spins and the volatility level. Crucially, the win multiplier does not reset during this round and can reach a maximum of 50x.
5. Target Audience & Professional Verdict
Recommended for:
Players who enjoy high-volatility grid slots such as Moon Princess but prefer a higher maximum win potential (15,000x). It is ideal for those who favor strategic selection during bonus rounds and complex modifier-driven gameplay.
Risk Warning:
As a high-volatility title, the base game can experience significant periods without a “Sisterhood” trigger. The potential is heavily concentrated in the Free Spins round; therefore, a betting strategy that accounts for the exhaustion of the bankroll before reaching the bonus phase is necessary.
