Project Folders

Here is a list of the various standard/recommended project folders in use. These are folders which appear inside your Project window, therefore effectively within your Assets folder on your filesystem.

Resources	Any resources you wish to load using Resources.Load must go here
Editor	Any scripts which alter the Unity editing environment itself must go in here
Plugins	Any external DLLs and scripts go in here (Pro only), see: Manual: Plugins
Standard Assets	Standard scripts & other assets go in here when imported (i.e. when creating a new project)
Pro Standard Assets	As above but for Pro users only