1984 - Night On Brocken
1985 - The Spectre Within
1986 - Awaken The Guardian
1988 - No Exit
1989 - Perfect Symmetry
1991 - Parallels
1994 - Inside Out
1997 - Pleasant Shade Of Gray
1998 - Still Life
2000 - Disconnected
2004 - Fwx
2013 - Darkness In A Different Light