Nice game! I liked it.
Found a few bugs:
- Greater Stoneskin potion is listed as "Stoneskin".
- Getting a 6-digit amount of money makes the game show only the first 5 digits until you buy something which causes one of the displayed 5 digits to change (I guess?).
- Point 3 in the description is wrong: there are actually three versions of each potion: lesser, normal, and greater.
Other than that, it would have been nice to be able to either buy in bulk or to buy by just double-clicking. Right now, going over all the 156 possible recipes was a bit painful. :]