There are three major currency collectibles in Blue Prince: Gems, Keys, and Gold. Keys are relatively common, while you will find Gold more often than either Keys or Gems. Gems are the rarest of these ...

You can also purchase Gems from shops like the Commissary. If you find a Watering Can, you can use it in the Green Rooms to gain Gems. This works three times, but you can fill it back up in the ...