Please Help me to learn Game Engine

Game Engine Game Engine Support and Discussion
1

I am new blender User
I have Project to make a Game for Construction Equipments
Please help me to fine the fastest way to learn Game engine
in Blender or the Best and Complete document for download
Only 3 days!!!
Thats my course Project

Thanks
Ali

2

what about here?

http://download.blender.org/documentation/NaN_docs/BlenderGameReference/