A Follower is the technical term for NPCs, Summons, and Pets your character controls. Every character has 5 "follower slots" and you can not control a greater amount. If you do a System Message will inform you are unable to have any more followers. The stronger the follower is, the more slots it takes up. For example:
- a Horse takes 1 follower slot
- an Energy Vortex takes 2 follower slots
- a Greater Dragon takes 5 follower slots
You can see how many follower slots you have available in the Status Bar.