- K'Barthan Box Set
- K'Zarina the Blood Queen
- K-Pax
- K3+
- Kaboem!
- Kaboom!
- Kachina
- Kadaverdisciplin
- Kadin
- Kai Lung's Golden Hours
- Kai's Journey; The New World Chronicles
- Kai's Story
- KAI-ME-RAH
- Kaiden
- Kain - Der erste Vampir
- Kaine's Reparation
- Kaine's Retribution
- Kaine's Sanction
- Kaira Saltiem und das Vermächtnis der Templer
- Kais Schmetterling
- Kal's Fall (The Teristaque Chronicles - Part One)
- Kaleidocide
- Kaleidoscope
- Kalen: Warlord Brides
- Kalibán háborúja
- KALIFORNIUM - Partie 01
- Kalimantan
- Kalin
- Kalina Theus and the Death Vision
- Kallakak's Cousins
- Kallang Basin Adagio
- Kallocain
- Kallocaína
- Kalpa Impérial
- Kaman's World
- Kamarde
- Kamaria (Birth of a new breed)
- Kaminishi
- Kaminishi: Four Seasons
- Kamp på Sneboldjord
- Kampen om Tusenvärld - Dunkelstjärnan
- Kampf um die Unsterblichkeit
- Kampf um ihre Partnerin
- Kampf um Phaeton
- Kantaki
- Kaon Rising
- Kapital Z (madriZ Integral)
- Karanagalaksen I. Styrke
- Karanagalaksen II. Tillid
- Karanagalaksen Log III. Forbund
- Karel Tromstein
- Karen Memory
- Karen Tamara
- Karl Redhand
- Karma Boulevard
- Karma Through the Window of Time
- Karne - skriet från häxberget
- Karnivaal Season
- Karte und Gebiet
- Kaspar's Box
- Kassius Kanex
- Kat's Cradle
- Katapult zu den Sternen
- Katastrophen kommen vor
- Kate of Kratos
- Kate on a Hot Tin Roof
- Kate Wilhelm SF Gateway Omnibus
- Katherine
- Katterna i Ulthar & De andra gudarna
- Kau D'varza
- Kaukų draustinis
- Kawokee
- Kaya Dove – Tome 1 : Messagère du futur
- Kayelle's Return
- Kayleb
- KB's Log
- KEELSOM JAHNAÏC
- Keen
- KEELSOM JAHNAÏC
- Keen
- Keep Fighting
- Keep Out
- Keep Running and Kill Zombies
- Keep The Stars
- Keep Your Shape
- Keeper
- Keepers of the Veil
- Keeping Cadence
- Keeping Faith
- Keeping It Real
- Keeping Things Fair
- Keeping Time
- Kein Gemüsegarten im All
- Keir
- Keir's Fall
- Keith Laumer Super Pack
- Keith Roberts SF Gateway Omnibus
- Kejserens atlas
- Kejserfortællingen
- Kellassepp: novell (Eesti väljaanne)
- Kellen
- Kelwitts Stern
- Kemlo and the Crazy Planet
- Kemlo and the Masters of Space
- Kemlo and the Space Men
- Kensho
- Kepler Boulevard
- Kepler-438b
- Kernheads: Uncommon Synths
- Ketcel
- Ketner
- Ketters van Duin
- Key Out of Time
- Key Ship
- Key the Steampunk Vampire Girl and the Dungeon of Despair
- Key the Steampunk Vampire Girl and the Tower Tomb of Time