What company published a fantasy tabletop role-playing game originally designed by Gary Gygax and Dave Arneson that has a book of rules that lack the complete set of rules for the game, and only includes rules for use by players of the game?
Player's Handbook:  It does not contain the complete set of rules for the game, and only includes rules for use by players of the game. Dungeons &amp; Dragons: Dungeons & Dragons (abbreviated as D&D or DnD) is a fantasy tabletop role-playing game (RPG) originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. (TSR).
Tactical Studies Rules