The Amber Diceless Roleplaying Game is a role-playing game created and written by Erick Wujcik, set in the fictional universe created by author Roger Zelazny for his Chronicles of Amber.

Since the 1950s, this type of fiction has to a large extent merged with science fictional tropes involving cross-time travel between alternate histories or psychic awareness of the existence of " our " universe by the people in another ; or ordinary voyaging uptime ( into the past ) or downtime ( into the future ) that results in history splitting into two or more time-lines.

* Abydos ( Stargate ), name of a fictional planet in the Stargate science fiction universe

* Symbol of the Imperium ( Warhammer 40, 000 ) in the fictional Warhammer 40, 000 universe

* The Ark, a fictional spacecraft in the Transformers universe

* Aba ( Dune ), a type of robe in the fictional Dune universe created by Frank Herbert

The Cthulhu Mythos is a shared fictional universe, based on the work of American horror writer H. P. Lovecraft.

Authors writing in the Lovecraftian milieu use elements of the Mythos in an ongoing expansion of the fictional universe.

There have been attempts at categorizing this fictional group of beings, and Phillip A. Schreffler argues that by carefully scrutinizing Lovecraft's writings a workable framework emerges that outlines the entire " pantheon " – from the unreachable " Outer Ones " ( e. g. Azathoth, who apparently occupies the centre of the universe ) and " Great Old Ones " ( e. g. Cthulhu, imprisoned on Earth in the sunken city of R ' lyeh ) to the lesser castes ( the lowly slave shoggoths and the Mi-go ).

In comic books, continuity has also come to mean a set of contiguous events, sometimes said to be " set in the same universe " ( see fictional crossover and fictional universe ) or " separate universes " ( see intercompany crossover ).

A Horta ( Star Trek ) | Horta, a fictional silicon-based life-form in the Star Trek universe.

* Clone trooper, a fictional soldier in the Star Wars universe

The Baron Vladimir Harkonnen is a fictional character and the main antagonist from the Dune universe created by Frank Herbert.

Piter De Vries is a fictional character from the Dune universe created by Frank Herbert.

The locations where these adventures occur, such as a city, country, planet or an entire fictional universe, are also sometimes called ' campaigns ' but are more correctly referred to as ' worlds ' or ' campaign settings '.

* Starship Enterprise, any of several ships by that name in the Star Trek fictional universe

In the fictional Discworld universe created by author Terry Pratchett, the city-state of Ankh-Morpork contains numerous Guilds ( including respective Guilds for Assassins, Beggars and Fools, as well as Thieves and others ), all of which have a monopoly on the various trades which they dominate.

Dark Jedi is the name given in the Star Wars universe to fictional characters attuned to the Force and adept in its dark side.

The Klingon language ( tlhIngan Hol, pronounced ) is the constructed language spoken by the fictional Klingons in the Star Trek universe.

Within the fictional universe of Star Trek, Klingon is derived from the original language spoken by the messianic figure Kahless the Unforgettable, who united the Klingon home-world of Qo ' noS under one empire more than 1500 years ago.

* Moties — part of Pournelle's CoDominium fictional universe

The fictional universe is also the home of species from outside Known Space, including the hominid inhabitants of a megastructure called Ringworld.

* Marienburg ( Warhammer ), a fictional city in the Warhammer Fantasy world

* Norsca ( Warhammer ), a fictional land in the Warhammer Fantasy game setting

In contrast to many other fictional FTL technologies, such as a " jump drive " or the Infinite Improbability Drive, the warp drive does not permit instantaneous travel between two points ; instead, warp drive technology creates an artificial " bubble " of normal space-time that surrounds the spacecraft ( as opposed to entering a separate realm or dimension like hyperspace, as is used in the Star Wars, Stargate franchise, Warhammer 40, 000, Babylon 5 and Andromeda universes ).

Warhammer 40, 000s space-fantasy setting spans a vast fictional universe set in the far future of the forty-first millennium.

The Eldar are a race of elf like beings who inhabit the fictional universe of the game Warhammer 40, 000, a 1987 tabletop miniature wargame produced by Games Workshop, set in a dystopian science-fantasy universe.

* Eldar ( Warhammer 40, 000 ), ancient race of elf-like aliens in the Warhammer 40, 000 fictional universe

The Tyranids are a fictional race from the Warhammer 40, 000 tabletop game and its spin-off media.

* Stormtroopers, elite soldiers in the fictional Imperial Guard of Warhammer 40, 000

* Ork ( Warhammer 40, 000 ), a fictional species in the Warhammer 40, 000 universe

* Blackstone Fortress, a type of space station in the fictional universe of Warhammer 40, 000

* Cypher ( Warhammer 40, 000 ), a character from the fictional Warhammer 40, 000 universe

* In the Warhammer 40, 000 fictional universe, the Eldar race live and travel aboard interstellar arks, Craftworlds

The fictional Warhammer races and events are described, below, using in-universe tone.

* Space Marines ( Warhammer 40, 000 ), a fictional army in Warhammer 40, 000

* Eisenstein ( spacecraft ), a fictional spacecraft, featured in Flight of the Eisenstein, a 2007 novel by James Swallow for the Horus Heresy series of Warhammer 40, 000.

In the fictional universe of Warhammer 40, 000, the Dark Eldar are a Kindred of the Eldar, an ancient and advanced race of elf-like humanoids.

There are 40 letters in all, mainly to people in Italian history and fiction, but also to internationally well known fictional and historical characters such as Pinocchio, Charles Dickens, Hippocrates, and Jesus.

Weapons using plasma ( high-energy ionized gas ) have been featured in a number of fictional universes, such as Transformers, the Halo franchise, Babylon 5 and the Sci-Fi miniature gameWarhammer 40, 000 '.

* Commander Farsight, or O ' Shovah, a Tau character from the fictional Warhammer 40, 000 universe.

Battlefleet Gothic is a tabletop miniatures game based in Games Workshop's fictional Warhammer 40, 000 universe, and is sold by Games Workshop.

* In the fictional Warhammer 40, 000 universe, Termagants are a subspecies of Tyranids, hostile alien creatures that resemble dinosaurs or insects.