XP

XP, or experience, is earned and used to level up. When a player gains a certain ammount of xp, they level up and unlock more items to purchase and crops to plant.

Ways of earning XP
A player can earn XP in a number of ways:
 * Harvesting crops.
 * Completing a trade with a friend.
 * Building a structure.
 * Placing other items like plants and decorations.
 * Upgrading one's castle.
 * Completing tutorial steps.