Ryan Costello
Ryan Costello's most popular book is Pathfinder Roleplaying Game: Ultimate Equipment with 4 saves and an average rating of 5.
Authorship percentage indicates primary author status - excluding introductions, forewards and other contributions.
Series
23 released booksAuthored 9% of series
Pathfinder Roleplaying Game
Pathfinder Roleplaying Game is a 23-book series with 23 released primary works first released in 2009 with contributions by Jason Bulmahn, F. Wesley Schneider, and Cam Banks.
Series
65 primary books66 released booksAuthored 3% of series
Pathfinder Adventure Path
Pathfinder Adventure Path is a 66-book series with 66 released primary works first released in 1947 with contributions by James Jacobs, Wolfgang Baur, and Erik Mona.
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Series
5 primary booksAuthored 40% of series
Skull & Shackles
Skull & Shackles is a 5-book series with 5 released primary works first released in 2012 with contributions by Richard Pett, Matthew Goodall, and Jesse Benner.
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