Advanced Dungeons & Dragons: Planescape RPG is a 18-book series first released in 1991 with contributions by Monte Cook, Bruce R. Cordell, and 15 others.
1998 • 1 Reader • 95 pages
1996 • 1 Reader • 64 pages
1997 • 1 Reader • 96 pages
1995 • 1 Reader • 64 pages
1996 • 1 Reader
1994 • 1 Reader • 42 pages
1995 • 1 Reader
1995 • 1 Reader • 128 pages
1994 • 3 Readers • 4
1995 • 2 Readers • 224 pages • 2
1995 • 2 Readers • 3
1994 • 3 Readers • 4.5
1996 • 1 Reader
1995 • 1 Reader • 160 pages
1998 • 2 Readers • 128 pages • 3
1996 • 2 Readers • 2
1996 • 1 Reader • 128 pages