Hello there and congrats on your concept! You're welcome to showcase it to more people at our server : https://discord.gg/gZ7yEDSq
I myself am a D&D fan, so this concept you are working on really appeals to me, so good job! Attempting to create these kind of rules in a simple way is no easy task, but keep at it! One small thing i could comment is to take care with balancing, i don't know if you already tested them, but for instance, stamina being the sum of constitution and strength seems to make strength a much better build idea than the dexterity one. I did not test it, this is just an impression lol.
But good job and keep the good work! Don't forget to play other games on the Jam and to help them out with feedback as well!