[[File:ChunkBoundary.jpg|frame|A chunk boundary as represented in Create A World
A world in The Sims 3 is separated into Chunks. As players traverse the world, immediate and nearby chunks are loaded, and far away chunks are deprioritised.
Basic[]
| Basic Tools |
|---|
| World Description | Layers | Terrain Paints | Roads | Objects | Effects | Lots |
| Cluster Trees | Edit In Game | Brushes | Chunks | Routing |
