Am I understanding this correctly, a prefab takes up less room in the compiled version of the game vs individual units? Meaning I make 1 tree, set it up, etc, then turn that into a prefab. Then place the prefab all over the board, and that takes up less room than if I did each tree individually? I am playing with prefabs now, rather amused by them and love the concept of 'change once, modify many', I have done it to my forest, and I did it to a building, both after I setup there initial size, material modifications, collision attributes, etc. This was very handy to do prior to making them a prefab. Just trying to get a feel of others as to what they have seen when they use objects as prefabs vs individual objects. Oh, and what I don't get, is when you are on scene view, you have a show prefab button, but it does nothing. Clicking it doesn't hide the prefabs, or show them or change there color from blue in the list or anything, is this a future item?