The Omega Command
1986
The Alpha Deception
1987
The Gamma Option
1989
The Omicron Legion
1991
The Vengeance of the Tau
1993
Day of the Delphi
1993
Kingdom of the Seven
1994
The Fires of Midnight
1995
Dead Simple
1998
Pandora's Temple
2012
The Tenth Circle
2013