Three of the most important things for survival are water, fire, and food. Therefore, water is the primary consideration over either food or fire. An average person should try to drink close to 1 gallon.
The burdei dates back as far as 6000 years and it’s a type of half-dugout shelter somewhat between a sod house and a log cabin, usually with a floor that’s 1 – meters under ground level. Not realy a tree house but still cool
Def house - the white thing in the corner is a wood stove, and a root cellar should be completely underground. -- House or root cellar? - Inside the house of ancient Russians (slavyane), the century. The window was used as a door.