Hey! I always forget about the license files hahaha. I will add one when I get around to it!
You can use all of my packs/assets for whatever purpose you see fit, commercial or not. The only things I don't allow is direct reselling my assets and turning the sprites into merchandising and selling it (like stickers or something). Aside from that there are no limitations :)
Best of luck on your journey and be sure to share your work with me!