There are currently three main classes in KoK3. Warrior, Mage and Cleric. Each Class is further divided into 3 sub classes and each sub class has 3 more sub classes. Take time to view each tree in detail to best determine what specialization path you want to take. Don't worry though if you want to change your mind there are ways to reset your talents. Resetting of talents needs to be done everytime you choose your next tier.
Attribute PointsEditEverytime you level you will get a flashing + symbol under your mini map on the right hand side of your screen. Clicking that will open up your character screen and your skill tree. Your character screen will be open to the second tab called properties and will allow you to add points to your attributes. Important: Allocate all your points into the same attribute to maximize your damage output. For Warriors all your points will go into Strength. For Mages and Clerics it will be Intellect all other stats will improved with gear.