TIME WARRIOR SERIES
Time of the Fox .................. 1990
Hour of the Scorpion ............. 1991
Day of the Snake ................. 1992
DOOM 3 SERIES
Worlds on Fire ................... 2008
Doom 3 Maelstrom ................. 2009
NON-FICTION
The Greatest Puzzles of All Time .......... 1988
How To Write Science Fiction .............. 1988
The Greatest Games of All Time ............ 1991
ANTHOLOGIES CONTRIBUTED TO
Deathport ................................. 1993
Frankenstein: The Monster Wakes ........... 1993
The Ultimate Zombie ....................... 1993
David Copperfield's Tales of the Impossibble ............ 1993
Great Writers and Kids Write Spooky Stories ............. 1993
Werewolves ................................ 1995
Diagnosis - Terminal: An Anthology of Medical Terror .............. 1996
Future Net ................................ 1996
Phantoms of the Night ..................... 1996
Gothic Ghosts ............................. 1997
Star*drive: Starfall ...................... 1999
SHORT STORIES
"Corporate Takeover" ...................... 1993
"My Coney Island Baby" .................... 1993
"Closet Monsters" (with Nora Claire Costello) .................. 1995
"The Last Vanish" ......................... 1995
"Nick of Time" ............................ 1995
"Friendly Wager" .......................... 1996
"Someone Who Understands Me" .............. 1996
"Unfortunate Obsession" ................... 1996
"Unexpected Attraction" ................... 1997
"Mind Over Matter" ........................ 1999
"Thank You For Your Patience"