http://www.stonehearth.net/alpha-21-the-inner-life-of-hearthlings-revealed/
ALPHA 21: THE INNER LIFE OF HEARTHLINGS REVEALED
Hearthlings are people too!
Welcome to Stonehearth Alpha 21! With this release we continue our work towards making hearthlings feel more alive, both as individuals and in how they relate to their world and one another. We think that understanding what makes your hearthlings tick will help you plan and guide your settlements more effectively. This Alpha sees the new Trait system being added with associated updates being made to embarkation and loadout selection.