The Pet Ranch is a stronghold feature still missing in the western version of Lost Ark. Community Manager Roxx responded to a player’s question by confirming that it will come in a future update (but not the April update):

What is the Pet Ranch? Reddit user Jazzlike_Butterfly_8 summarized it like this:
You make your pets run treadmill to generate cookies for you to trade with skins and other matts to make your pet legendary grade.
Basically, its Pet slave house ;p
Jazzlike_Butterfly_8 on RedditTip: See all available pets in NA/EU in our Lost Ark Pet List!
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