Dennis Detwiller's most popular book is Delta Green: Handler's Guide with 6 saves and an average rating of 4.5.
Series
1 primary book47 released booksAuthored 18% of series
Call of Cthulhu RPG is a 47-book series with 47 released primary work first released in 1981 with contributions by Keith Herber, William Deitze, and Sandy Petersen.
Series
6 released booksAuthored 70% of series
Delta Green RPG is a 6-book series with 6 released primary works first released in 2018 with contributions by Dennis Detwiller, Shane Ivey, and Greg Stolze.
Series
9 released booksAuthored 67% of series
Delta Green Fiction is a 9-book series with 9 released primary works first released in 1998 with contributions by Dennis Detwiller, Ray Winninger, and Bruce Baugh.
Series
6 released booksAuthored 50% of series
L'Appel de Cthulhu is a 6-book series with 6 released primary works first released in 1981 with contributions by Sandy Petersen, Lynn Willis, and Dennis Detwiller.
Series
2 released booksAuthored 100% of series
Godlike is a 2-book series with 2 released primary works first released in 2001 with contributions by Dennis Detwiller and Greg Stolze.
Series
1 primary bookAuthored 100% of series
Whispers from the Abyss is a 1-book series first released in 2013 with contributions by Greg Stolze, Alasdair Stuart, and J.C. Hemphill.