Hello,
I'm sorry to hear that the game mechanics were poorly explained.
I'm currently abroad for the duration of the game jam but I'll try to add more instructions on the next game update. Could you tell me which game mechanic was not clear ? (Brewing potions, choosing the right potion, upgrading the price of a potion, using the trashcan, paying your rent...).
Also, the browser version indeed downloads the game's data temporarily in order for it to work on your computer. I believe it's the same process for every browser game.
I'm sorry for the inconveniences and am grateful for your comment,
Loïc