The old Blender Gamekit book has been translated into Spanish by Nodoy1 and is now free for viewing online at his site.
Nodoy1 explains:
“I was working in the translation into Spanish of the old game kit
documentation. This documentation has been open to everybody in blender.org. I
have translated until chapter nine”
You can find the Spanish version here-
http://nodoy1.net/wiki/index.php?title=Blender_gamekit_en_castellano
