Learn to separate a casino game’s theme, format, and features before you play....

https://mighty-wiki.win/index.php/What_Does_RTP_Mean,_and_Why_Isn%E2%80%99t_It_a_Promise_for_My_Session%3F

Learn to separate a casino game’s theme, format, and features before you play. The theme sets the story, the format explains how wins work, and features add special rules. Cascading reels describe a mechanic, not a theme