I'm surprised with how many mechanics you've managed to cram into this game. Very surprising and very welcome. Potion brewing seems very in-depth, which is fantastic, absolutely love it! Also love the scavenging aspect, the overworld seems fairly easy to navigate. Love your implementation of the questing board, though I didn't go far enough to actually complete one.
One thing though - definitely need a storage area from the get-go, and probably a bigger backpack or the ability to stack ingredients. That would be great.
I love what you already have here, but some story (aside from starting text) would be nice. Any plans for more tools (aside from grinder and press)?