If I could magically get a feature by request, it would be to give me infinite time even if that meant my score came with an asterisk. Maybe just call it Relax Mode vs. Challenge Mode.
By the way: I really like the overall design of Zanagrams and 18 Words. These are small puzzle games with very simple, clean UIs. They work crisply and I've noticed you've been tidying up Zanagrams, adding minor features and settings. They have a very Classic Web feel to them. It's not like you're trying to get me to watch ads or subscribe to your newsletter or are just breadcrumbs to some for-profit thing. I like having a handful of very easy to pick up puzzles/toys when I need to fidget. They help keep me away from TikToks and Shorts.