Pathfinder Player Companion is an invaluable resource for players and Game Masters. Each 32-page bimonthly installment explores a major theme in the Pathfinder Campaign Setting, with expanded regional gazetteers, new player character options, and organizational overviews to help players flesh out their character backgrounds and to provide players and Game Masters with new sources for campaign intrigue.
The product line debuted in August 2008 as Pathfinder Companion, with Second Darkness, a player-oriented guidebook to the third Pathfinder Adventure Path, Second Darkness. In August 2010, the line's name was changed from Pathfinder Companion to Pathfinder Player Companion to more clearly express the line's purpose as player-oriented material.
The bi-monthly issues alternate with the Pathfinder Modules line, which converted from a monthly to bi-monthly schedule in August 2008, coinciding with the launch of this line. These products briefly replaced the Player's Guide products released at the launch of each new Adventure Path, but were found to be a poor fit for this role and have since become more independent from other lines.