Ancient Island Megaways™ results nobody can forecast
Deciding to spin Ancient Island Megaways™ means accepting that nobody can tell in advance how often the bonus round will come. Free spins may arrive on the next spin or after a long dry run, and the result of one session stays random whatever the RTP printed on the rules page. Two players with the same stake can end with very different balances.
Checking which RTP version is running starts in the game rules, the only place it is shown. Read that section before you stake any money. The RTP in the table describes a long-run average over very many spins, not what your next hour will bring.
Setting your expectations around the maximum win means treating it as a ceiling, not a target. Very few sessions reach it, and nothing in the game warns when a big round is coming. Plan your stake around the time you want to play, and read any top figure as the upper limit.