Change the first paragraph of rule 2.3 (“Energy”) to read:

Each Colonist has an amount of Energy, and a level of Sobriety, which are tracked in GNDT.  New Colonists start with 50 Energy and 0 Sobriety.  As a weekly action, a Colonist may rest, and set his Energy to either (100 - his Sobriety), or 35, whichever is larger.

Create a field in the GNDT called “Sobriety” and set all Colonists’ Sobriety to 0.

Change the first bullet point in rule 2.2.1 (“Locations”) to read:

* Bed: A Colonist who is Indoors and in a Bed may set his Energy to 50 more than the amount specified in rule 2.3 when resting.

Add the following bullet points to rule 2.3.2 (“Tasks”):

* Brew.  The Colonist may spend 5 Energy and turn a Small Crop at his location into Dirt to add 8 Drinks to the Stockpile, or spend 5 Energy and turn a Mature Crop at his location into Dirt to add 12 Drinks to the Stockpile.
* Drink.  The Colonist may spend 1 Energy and remove one Drink from the Stockpile to decrease his Sobriety by 5.  This task may only be performed by Colonists whose Sobriety is a positive number.  If this would cause his Sobriety to become negative, it will be set to 0 instead.

Add the following bullet point to rule 2.4 (“Jobs”):

* Brewer: Any Colonist who has performed the Brew task three times in one week may become a Brewer.  A Brewer will produce 15 Drinks when Brewing from a Small Crop, and 20 Drinks when Brewing from a Mature Crop.