Pets are a type of NPC found in Terraria that are strictly for show purposes. They do not hurt other enemies. The following can be found on most platforms:


Mountable Pets

Light giving pets

And the following can only be found on the console version and the Mobile Version at this stage:

The following are only available on their own version at this stage:

As of now, in the PC version of Terraria, you can have one minion, one passive pet, one mountable pet, and one light giving pet out at the same time (ie. Pygmy, Sapling, Bunny Mount, and Wisp in a bottle).