Crown Trick is a classic roguelike with a pleasant cartoony art style. It's very polished, and incorporates a lot of modern roguelike features, such as permanent character progression, weapons with different attack tile patterns, well-documented spell effects, and clear indication of enemy state.
Screenshots marked with 🍒 are created by syltefar and are considered public domain, free to use for anything. If you want to, you can note where you found it and link to this page.