First post, just hope not to break any rules
I am little bit lost and don't know where to start in order to develop a game.
Where should I start?
Is there any good book on blender game development with the latest blender version (2.5 at the moment) ?
Thanks in advance,
go here, Game Engine section, and in three weeks ( years?) you'll be doing your game:
Bye and be brave
Well, OTO is right, blenderartist is the right place for you. http://blenderartists.org/forum/forumdisplay.php?34-Game-Engine
to be more precised. Don't be shy to post, people are nice.
I have started a tutorial series for the BGE and it is aimed at complete beginner so you might want to take a look : http://www.youtube.com/watch?v=ScIXZZ4mflM&feature=related
Also, blendercookie (a great website for tutorials) have a great series on the game engine as well. Here's the link : http://cgcookie.com/blender/2010/05/13/game-enginecharacter-part-1/
That's all, have a great day. =P