Gates of Olympus 1000 cannot promise the next win
The reels land a new grid of symbols after every spin, and the bonus round starts only when enough Zeus Scatter symbols land. How often that happens is not known in advance. One session can bring many bonus rounds or none, and its result is random whatever the RTP. The RTP is a long-run average over many spins, not a promise for the session you are playing.
Each spin on these reels is paid under one of the two RTP versions, and only the game rules show which one is running. Open that section before you play, because the version decides the long-run return. The RTP table on this page turns each version into money for every A$100 staked.
Tumbles and multiplier orbs on the reels can stack into a large payout. The maximum win is a ceiling reached very rarely, so read it as the most one round can pay, not a figure to expect. The paytable shows what the ceiling means at each bet, so check it before you raise your stake.