oh! it's a delight to read that you had such a good time! thank you so much for coming back to share your thoughts, there's a fresh smile on my face as i write this reply. i'm happy that easyrpg player's looking good for you, too.
i can definitely think of a couple games you might like! if you especially like games without leveling systems, i'd start with facets by john thyer and fallen star by jetstorm4. my games ocean oi and atom oi are a bit shorter and purely focused on combat, but they fit the bill too. depending on your specific qualms with leveling, you might click with strife of cosmos by mythatelier and slimes by scitydreamer; both games implement leveling in a very controlled way and pair it with intentional, critical approaches to turn-based combat. finally, there are a couple other more general recommendations in the readme for cataphract oi you might find interesting - the ones i haven't mentioned yet might be longer or have more conventional approaches to character growth, but they're all wonderfully thoughtful responses to rpg traditions, so they might appeal to you on that level!
thanks for asking, 'cause most of these folks are my friends and community members (and often direct inspirations on my own work) and i love to plug their stuff xD