How to create a low poly tree for Unity 3d?

Question

Unity

For several days I have been struggling with the problem of creating a tree for an RPG game on Unity3d. Standard Blender tools allow you to create very beautiful trees, but they have a lot of polygons, and the game sags.
The method of planes is also not very good - for 2014, especially RPGs, it will immediately catch your eye. Can you suggest the right way, or give links to lessons?

Answer 1

we don't see the screen of the game, so we can recommend this tree)
blender3d.com.ua/sozdaniye-low-poly-illyustratsii-...