Any GAIA alternative for UE4?

Hi all! Can you please tell me if there any Gaia (Unity asset) alternative for UE4, that would generate world and fill it with objects / details and so on? I only do scripting and i don’t have much time for level design stuff. Maybe sometime in the distant future, if I don’t get tired of all this, i will find a level designer who will make a “normal” world… but for now I’m looking for an Gaia alternative for UE4 :wink: