Read game blurbs: theme is the look, format is how play works, and features...

https://varimail.com/articles/why-game-names-help-me-find-a-title-but-dont-tell-me-how-it-plays/

Read game blurbs: theme is the look, format is how play works, and features shape wins. Megaways names a format. Cascading reels and cluster pays show how wins form. Check pay rules, bonus terms, and bet limits