Question Import new prefab into published game

Is there any way to import a new prefab into a published game? I'm building a level editor for my game, and one feature I'd like would be for the player to create a new model (for example, an fbx file exported from Blender) and then use it in their game. In order to instantiate an object from the player's new model, I need a prefab containing it. This is easy to do with an editor script, but the player has only the published game. It's straightforward to import the fbx file into the game. Is there any way to create a prefab from it once it's imported? Or even put it into an existing prefab?

 

You don't need a prefab. You can use new GameObject() and add the stuff you need.
You gotta manually import the models etc at runtime and add the appropriate components for it to work

 

Thanks! I was stuck on prefabs, but your answer got me to rethink my question as "how do I create a GameObject from a byte array?". A little research found the free Unity asset ObjImporter that solved my problem