This is the 158th episode of the new tutorial series on Action RPG game using Gameplay Ability System. Here we are going to work on a experience points system. First, we will add XP points as a new attribute to the base actor attributes set that we are using along with the gameplay ability system and that will be used to keep track of the total experience points player has gathered. Later on we will be using experience points to level up the character and grant kill points in order to unlock new skills and abilities.