Titan Titan
1979
Mammoth Mammoth
2020
Red Thunder Red Thunder
2020
The Ophiuchi Hotline The Ophiuchi Hotline
1993
Wizard Wizard
1980
Steel Beach Steel Beach
1992
Titan: Gaean Trilogy, Book 1 (Unabridged) Titan: Gaean Trilogy, Book 1 (Unabridged)
2008
Wizard: Gaean Trilogy, Book 2 (Unabridged) Wizard: Gaean Trilogy, Book 2 (Unabridged)
2025
Demon: Gaean Trilogy, Book 3 (Unabridged) Demon: Gaean Trilogy, Book 3 (Unabridged)
2025
The Ophiuchi Hotline  (Unabridged) The Ophiuchi Hotline  (Unabridged)
2008
The Persistence of Vision  (Unabridged) The Persistence of Vision  (Unabridged)
2008
Press Enter  (Unabridged) Press Enter  (Unabridged)
2025