Dying Earth
- A Quest for Simbilis (1974)
Nifft
- Nifft the Lean (1982). There is also a limited edition (440 copies) reprint by Darkside Press (1994)
- The Mines of Behemoth (1997)The Incompleat Nifft (omnibus, 2000)
- The A'rak (2000)
Other novels
- The Color Out of Time (1984)
- In Yana, the Touch of Undying (1985)
- I, Said the Fly (1993). A limited edition of 300 copies from Silver Salamander Press.
- The Extra (2010). Based on Shea's original short story of the same title, this novel is intended as the first of a trilogy.
Novels by Shea as-yet-unsold include
Cannyharme,
Momma Durtt and
The Plunderers.
Collections
- Polyphemus (1987)
- The Autopsy and Other Tales (2008) [This short story collection from Centipede Press also includes the complete Lovecraftian novel The Color Out of Time].
- Copping Squid and Other Mythos Tales (edited by S.T. Joshi) (Perilous Press, 2010)
Chapterbooks
Short stories
- "The Angel of Death" (1979)
- "The Autopsy" (1980)
- "Polyphemus" (1981)
- "Nemo Me Impune Lacessit" (1982)
- "That Frog" (1982)
- "The Horror on the #33" (1982)
- "The Fishing of the Demon-Sea" (1982)
- "Come Then, Mortal, We Will Seek Her Soul" (1982)
- "The Goddess in Glass" (1982)
- "The Pearls of the Vampire Queen" (1982)
- "Shag Margold's Eulogy of Nifft the Lean, His Dear Friend" (1982)
- "Grunt-12 Test Drive" (1983)
- "Creative Coverage, Inc." (1983)
- "Uncle Tuggs" (1986)
- "Fill It With Regular" (1986)
- "The Extra" (1987)
- "Fat Face" (1987)
- "Delivery" (1987)
- "I, Said the Fly" (1989)
- "Salome" (1994)
- "Tollbooth" (1995)
- "Johnny Crack" (1995)
- "Fast Food" (1995)
- "Piece A' Chain" (1996)
- "Water of Life" (1999)
- "For Every Tatter in Its Mortal Dress" (2000)
- "The Rebuke" (2002)
- "The Growlimb" (2004) (Winner of the World Fantasy Award 2005 in the Novella category).
- "The Pool" (2007)
- "Tsathoggua" (2008)
- "The Battery"
- "The Presentation"
- "Copping Squid"
- "Dagoniad"
Reviews
- "Reprisal by Mitchell Smith" (2005)
Awards
Nebula Best Novellette Finalist (1980) : The Angel of Death
Nebula Best Novella Finalist (1981) : The Autopsy
Hugo Best Novellette Finalist (1981) : The Autopsy
Hugo Award Finalist (1981): Polyphemus
World Fantasy Best Novel winner (1983) : Nifft the Lean
World Fantasy Best Collection Finalist (1988) : Polyphemus
World Fantasy Award (2005) Novella winner: The Growlimb.
International Horror Guild Award (2005) Finalist: The Growlimb
British Fantasy Society Award (2005) Finalist: The Growlimb
Horror Writers Association Bram Stoker Awards (2005) Nominee: The Growlimb