Demon Seed – Revised Edition

Mass Market Paperback

Release Date: July 1997
Copyright: ©1973 by Dean Koontz
©1997 by Nkui, Inc.
Publisher: Berkley
Page Count: 301
ISBN-10: 0-425-15859-4
Cover Price: $7.50
States: “10 9 8 7 6 5 4 3 2 1"

Book Club Edition

Release Date: July 1997
Format: Reprint of the mass market paperback edition
Page Count: 152
Book Club ID: #01373

UK Trade Hardcover

Release Date: 1997
Copyright: Copyright © 1973 by Dean Koontz
Revised version © 1997 by Dean Koontz
Publisher: Headline Feature
Page Count: 211
ISBN-10: 0-7472-0831-X
Cover Price: £16.99
States: “10 9 8 7 6 5 4 3 2 1" and “First hardback edition”
The original release of this edition included a “Free Dean Koontz Voucher Worth £5” from Headline.

UK/Australia Large Print

Release Date: 2000
Format: Hardcover & Trade Paperback
Publisher: “Published in large print in 2000 by ISIS Publishing Ltd… and Bolinda Publishing Pty Ltd.”
Page Count: 219
Original List Price: Unknown
States: ISBN 0-7531-6169-9 (HC Isis)
ISBN 0-7531-6340-6 (TPBK Isis)
ISBN 1-74030-195-1 (HC Bolinda)
ISBN 1-74030-196-X (HC Bolinda)


Release Date: May 15, 2010
Copyright: ©1973 by Dean Koontz
©1997 by Nkui, Inc.
℗2010 by Brilliance Audio
Publisher: Brilliance Audio
Read By: Christopher Lane
Length: Unabridged / 5 hours : 45 minutes


5 Compact Discs
Original List Price:$34.99 (listed on box)


1 MP3-CD
Original List Price:$24.99 (listed on case)
ISBN:1-4418-1730-1 / 978-1-4418-1730-3

Trade Paperback

Release Date: January 6, 2015
Copyright: Copyright © 1973 by Dean Koontz
Copyright © 1997 by Nkui, Inc.
Publisher: Berkley
Page Count: 244
ISBN-13: 978-0-425-25381-6
Cover Price: $15.00
States: “Berkley trade paperback edition / January 2015” and “10 9 8 7 6 5 4 3 2 1”


The US edition lists the copyright under “Nkui, Inc.” while the UK edition lists “Dean Koontz”

A one page letter on Dean’s letterhead was sent out to an unknown number of booksellers and bookstores regarding the ending of this book. It seems that a significant number of readers felt there was some text missing from the book as it ends abruptly. The letter explains the ending and states that no text is missing.

Ingram Paperback Advance, May 1997 contains an advertisement for Demon Seed with b&w photo of cover on page 9.

The 21st printing of the Berkley paperback is the first to contain the “New Afterword”.

Other editions:

Small box CD 2013 reissue
German paperback
UK Headline mass market paperback 2nd printing
Demon Seed & Shattered Russian hardcover

Last updated on July 23rd, 2018