Quest Master is a fantastically promising Zelda Maker with an intuitive and powerful editing tool. You can easily drag, copy or cut specific portions of each room, and scripting stuff to turn ON or OFF after killing enemies or collecting coins is super easy. The ultrawide support makes it even better, and so far Julian and the dev team behind the game are doing a wonderful job addressing issues and helping people on Discord.

There are only three themes so far, but you can create a lot of stuff by making creative use of what's available and it goes without saying future updates hold the potential to take it even further. If you are interested in playing instead of creating, that's fine too — but with such a satisfying editing tool available, you're likely going to give it a try sooner or later.