I know it is 2 years after, but this post is the closest to the question i have in mind, and that is, are naturally occurring trade portals not existent in custom worlds (even if they are allowed in the settings)? Mine is SP 1x world. I have already come across 3 cave trolls so far, but none have a TP with them. I need a TP so that I dont have to manually bring in my unicorn food by spawning a new blockhead with it frequently and every time, and instead just buy it at the portal. I also have zero TCs so crafting it is not an option.
Thanks for any replies!