Learn to separate a game’s theme, format, and features: the theme sets its...

https://sofiassplendidblog.inkharbory.com/posts/why-does-one-word-like-may-change-the-whole-meaning-in-slot-rules

Learn to separate a game’s theme, format, and features: the theme sets its setting, the format explains how wins work, and features add special rules. Terms like cascading reels, cluster pays, and Megaways describe mechanics, not the game’s story