This book will not make your game the best, but will only show the fundamental principles of the game engine and how it works with the logic bricks.
For good and best use, I highly recommend the reader of this book to write down his idea of the game on a paper, decide on the character or characters that will be a part of it, the enemies of the characters, and especially how the game environment should look.
A good plan like this will get half the work done. The basic equipment that the user may need later is the Blender program which can be downloaded for free from its official website: http://www.blender.org.
Remember, idea, pen and paper, and then Blender. Do not even begin to reverse this, else you might have too many headaches.
Blender has very low hardware requirements; for more details visit http://en.wikipedia.org/wiki/Blender_(software) and http://wiki.blender.org/index.php/Doc:2.6/Manual/Introduction/Installing_Blender.