Medieval Farm Modular is perfect for your medieval, fantasy project! It’s possible to build fully enterable houses, barns, shelters and mills very fast using 229 modular meshes. You can create a whole medieval village using the pre-made medieval houses, barns, shelters and mills already included. It's usable for video games, archViz, cinematic's, etc. There are 1 demo level and 16 levels with its 1 pre-made building to demonstrate the possibilities.
Available here : https://www.unrealengine.com/marketplace/en-US/product/medieval-farm-modular