How many passive skills can I have? Agent #2 October 12, 2018 20:57 Follow At first, players have 3 slots for passive skills, but that number can be expanded by using the “Altar” construction. Related articles What is an “Active Skill”? How do I obtain and upgrade a skill? How do I use a passive skill? What is the Altar and what is it used for? How do I charge an active skill? Comments 0 comments Article is closed for comments.