| Year | Award | Category | Status |
|---|---|---|---|
| 1989 | Locus Poll Award | Best Horror Novel | Nominee/Finalist |
| 1989 | World Fantasy Award | Best Novel | Winner |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1988 |
|
Koko | Francisco Alves | Novel | |
| October 1988 |
|
Koko | E. P. Dutton | Novel | |
| October 1988 |
|
Koko | Viking UK | Novel | |
| 1989 | Koko | Guild Publishing | Novel | ||
| 1989 | Koko | Penguin Overseas | Novel | ||
| February 1989 | Koko | Dutton / QPBC | Novel | ||
| June 1989 |
|
Koko | Penguin Books | Novel | |
| June 1989 | Koko | Signet / New American Library | Novel | ||
| November 1989 |
|
Koko | Signet / New American Library | Novel | |
| December 1989 |
|
Koko | Robert Laffont | Novel | |
| 1991 |
|
Koko, 2º volume | Clássica Editora | Novel | |
| 1991 |
|
Koko, 1º volume | Clássica Editora | Novel | |
| February 1991 |
|
Koko | Presses Pocket | Novel | |
| 1993 |
|
Koko | Book Studio | Novel | |
| May 1995 |
|
Koko | Presses Pocket | Novel | |
| 1999 |
|
Koko | Presses Pocket | Novel | |
| January 2001 |
|
Koko | Robert Laffont | Novel | |
| May 2001 |
|
Koko | HarperCollins (UK) | Novel | |
| November 2002 |
|
Koko | Presses Pocket | Novel | |
| September 2004 |
|
Koko | Signet / New American Library | Novel | |
| July 2009 |
|
Koko | Anchor Books | Novel | |
| October 2009 |
|
Koko | Centipede Press | Novel | 1 |
| June 2010 |
|
Koko | HarperCollins (UK) | Novel | |
| April 2011 |
|
Koko | Anchor Books | Novel |