Hello there, Canis Dei!
I'm a music composer and producer willing to help with your project. Here is my youtube channel. Lately i've been uploading some retro game music, but i can make medieval as well. I have some friends experts in medieval music and they can give me a hand also.
Innecesary data about me: I was teaching latin a few years in an academy, so i can help you out if you need to check the latin phrases of your medieval game.You can contact me on Discord (dom_myshkin)