A single spin triggers a complete drop of thirty icons, and any collection of eight or more identical images processes a payout outcome. The winning symbols instantly vanish from the grid, forcing remaining symbols downward while fresh icons cascade from above to fill the resulting voids.
The cascading tumble repeats continuously until the board fails to form a new winning configuration. "Estimates of hit frequency suggest that overall winning spins occur about every 3.47 spins on average, reflecting a 28.82% hit frequency; bonus rounds trigger approximately once every 448 spins." - Gates of Olympus Online Slot: Demo Play, Real-Money Gameplay, and Evidence-Based Analysis, 2026. This data implies that most tumbles provide modest extensions rather than prolonged sequences.
Symbol values matter. The highest-paying standard symbol is the crown, awarding up to 50x your stake for clusters of 12-30 matching icons. The Zeus Scatter pays up to 100x for 6 on the grid, in addition to triggering the free spins round. Lower-value positions are occupied by coloured gem symbols representing the luxury associated with the Ancient Greek gods. So when you see those gems landing, keep expectations measured. They contribute, but rarely carry a round on their own.