This really gives off a classic CRPG kind of vibe, I can dig it!
It feels very well put together, and is very engaging to play. I was little confused by the way the UI worked at first since it feels very mouse based, but I got it pretty quickly.
I like your use of a grid based UI although on my display the hitboxes for the grid seem to be off quite a bit, but that's not a deal breaker (I'm using a 1440p monitor, also consequently since my monitor is big it's a bit uncomfortable to read the text since it spans the entire width of my display.)
I'm a little surprised you cannot seem to backpedal though!