The principal settlement on Arrakis, long-time seat of planetary government. Located within the protection of the Shield...

The desert planet, third planet of Canopus, and the sole source of the spice melange in the known universe. Called 'Dune...

Bene Tleilax technology used to grow gholas and produce synthetic melange. Their true nature - Tleilaxu women modified i...

An ancient and powerful order of women trained in extraordinary mental and physical disciplines. Founded after the Butle...

A secretive civilisation known for mastery of genetic manipulation. The Tleilaxu produce gholas, Face Dancers, and twist...

The great crusade against computers, thinking machines, and conscious robots, begun in 201 BG and concluded in 108 BG. L...

Third planet of Delta Pavonis, ancestral homeworld of House Atreides. A lush, ocean-rich world of temperate climate, it ...

The Combine Honnete Ober Advancer Mercantiles, the universal development corporation controlled by the Emperor and Great...

The sacred knife of the Fremen, manufactured from a tooth of a dead sandworm. Made in 'fixed' (treated for storage) and ...

A shape-shifting mimic created by the Bene Tleilax. Face Dancers can alter their appearance to imitate any human. Later ...

The rigid rule of class distinction enforced throughout the Imperium: 'A place for every man and every man in his place....

Fremen death commandos, pledged to give their lives to right a wrong. Under Paul Muad'Dib, they become his personal guar...

The all-female military force created by the God Emperor Leto II. Leto chooses women because he believes they are less s...

The free tribes of Arrakis, descendants of the Zensunni Wanderers. Living in cave communities called sietches, the Freme...

A being grown from the cells of a dead person in Tleilaxu axlotl tanks. Initially lacking the original's memories, extre...

Homeworld of House Harkonnen, the planet of Ophiuchi B (36). A heavily industrialised world with a polluted environment,...

Leto II's prescient vision of the only future in which humanity survives. It requires his 3,500-year tyrannical reign as...

The 'high-handed enemy,' a poison needle used in the Bene Gesserit test of human awareness. The subject places their han...

The universal truce enforced under the power balance maintained by the Spacing Guild, the Great Houses, and the Imperium...

Enormous cargo carriers of the Spacing Guild, large enough to carry entire fleets within their holds. Heighliners travel...

The fundamental scientific principle underlying defensive shields and suspensors. A shield permits entry only to slow-mo...

A powerful and aggressive matriarchal organisation that emerges from the Scattering. They return to the Old Imperium in ...

A noble House of the Landsraad, rulers of Caladan for twenty-six generations before their transfer to Arrakis. Known for...

The Imperial House, rulers of the Known Universe from the Golden Lion Throne. Descended from the victors of the Battle o...

A noble House of the Landsraad and hereditary enemies of House Atreides. Ruled from Giedi Prime, the Harkonnens are char...

A development of the Suk Medical Schools: the highest conditioning against taking human life. Initiates are marked by a ...

A planet renowned for its machine culture and advanced technology. Ix pushes the boundaries of the Butlerian Jihad's pro...

Formal feud or vendetta under the rules of the Great Convention. A system of regulated warfare between noble Houses with...

Literally 'Shortening of the Way,' the Bene Gesserit term for the superbeing they sought through millennia of selective ...

The assembly of noble Houses that forms the legislative and judicial arm of the Imperium. Together with the Emperor and ...

Literally 'The Voice from the Outer World,' a Fremen messianic figure planted by the Bene Gesserit Missionaria Protectiv...

The 'spice of spices,' found only on Arrakis and the most valuable commodity in the universe. Produced by the lifecycle ...

A class of Imperial citizens trained for supreme accomplishments of logic, serving as 'human computers' in a civilisatio...

The arm of the Bene Gesserit charged with sowing infectious superstitions on primitive worlds. On Arrakis, it planted th...

A spacecraft invisible to prescient vision and other detection. Developed during or after the Scattering, no-ships funda...

The 'Accumulated Book,' the religious text produced by the Commission of Ecumenical Translators. It contains elements of...

An aircraft capable of sustained wing-beat flight, commonly called a 'thopter. The standard aerial workhorse of the Impe...

The ability to perceive future events, enhanced by melange consumption. Paul Muad'Dib possesses the most powerful presci...

Third planet of Gamma Waiping, the original homeworld of House Corrino and later designated the Imperial Prison Planet. ...

The soldier-fanatics of the Padishah Emperor, drawn from the brutal environment of the prison planet Salusa Secundus. Th...

The great diaspora of humanity into uncharted space following the death of the God Emperor Leto II. Billions flee into t...

The great sandworms of Arrakis, also called the Old Man of the Desert. Specimens can grow over 400 metres long. The sand...

A Fremen cave dwelling and community stronghold on Arrakis. The word literally means 'place of assembly in time of dange...

The organisation holding a monopoly on space travel, transport, and interplanetary banking throughout the Imperium. Guil...

Large mobile factories used to collect melange from the Arrakis surface. Called 'crawlers' for their buglike appearance,...

A body-enclosing garment essential for desert survival on Arrakis. Its micro-sandwich fabric captures and recycles body ...

Homeworld of the Bene Tleilax, a secretive civilisation known for genetic manipulation. The planet is closed to outsider...

A Bene Gesserit technique of vocal control that compels obedience through precisely selected tone shadings. It bypasses ...

Ninth planet of Laoujin, site of the Mother School of the Bene Gesserit. The order's primary training centre where young...

The liquid exhalation of a sandworm at the moment of its death from drowning. Lethal to most humans, it can be transmute...