Setting up and installing custom content in the Sims 3
This is a tutorial about how to make nice roofs with half walls, and this video can even beginners understand so check it out.
Basic split-levelling tutorial video
Video – how to create a Sim in the Sims 3
This tutorial shows how to make a house on top of a Swimming Pool
A Beginners Guide on How to Mesh for The Sims 3