Will the bonus round land on my next spin?
Each spin fills the 8x8 grid with gems, and clusters of five or more matching symbols pay. How often the bonus round arrives is not known in advance. The result of one session is random, whatever the 96.55 RTP suggests over a long run.
After each win, the tumble feature drops new symbols into the gaps and the grid refills from above. Which RTP version this game runs is shown only in the game rules, not on the reels, so read them before the first spin.
Wins build on the grid as spin modifiers play out, yet the maximum win of Gems Bonanza is a ceiling reached very rarely. Treat it as a ceiling, not a target. No figure on this page tells you what a single session will return, so set your bet to a budget you can afford to lose.