The Rise of Olympus free slot offers a range of impressive bonus features during its gameplay. It includes free spins rounds with different volatility and potential settings. Zeus offers high volatility with 4 initial free spins and a chance to retrigger 4 more. Poseidon offers medium volatility with 5 initial free spins and a chance to retrigger 3 more. Hades offers low volatility with 8 initial free spins and a chance to retrigger 3 more. Additionally, players can benefit from a multiplier of up to 20x during these free spins rounds.