Noun
rulebook (plural rulebooks)
A book containing a set of rules.
Well, I'm known as a guitar-rock guy, you know? You're not supposed to play with synthesizers. This is not in the rulebook. Billy Corgan
According to showrunner Jon Favreau, the concept of a film isn't outside the realm of possibility on account of there being "no rulebook" for the series at this time. Source: Internet
A large number of the star systems shown on the map of the Frontier sector in the basic rulebook were unexplored and undetailed, allowing the Gamemaster (called the "referee" in the game) to put whatever they wished there. Source: Internet
Finally, to reiterate, there is no rulebook to follow. Source: Internet
History First Edition (1978) The original Gamma World boxed set (containing a 56-page rulebook, a map of a devastated North America, and dice) was released in 1978. Source: Internet
The 2009 rulebook was officially released in early March 2009 (effective 1 May 2009), however the FIH published the major changes in February. Source: Internet