Necroscope

1 Necroscope (1986)
2 Wamphyri! (1988)
     aka Vamphyri!
3 The Source (1989)
4 Deadspeak (1990)
5 Deadspawn (1991)
6 Blood Brothers (1992)
7 The Last Aerie (1993)
8 Bloodwars (1994)
9 Necroscope The Lost Years (1995)
10 Necroscope Resurgence (1996)
     aka Necroscope The Lost Years: Volume II
11 Invaders (1999)
12 Defilers (2000)
13 Avengers (2001)
14 The Touch (2006)
15 The Plague-Bearer (2010)
16 The Mobius Murders (2013)

Harry Keogh: Necroscope and Other Heroes (2003)
Harry and the Pirates (2009)

The Necroscrope Quintet (2018)
The Last of the Lost Years Vol. II (2020)
Necroscope: The Novellas (2021)