Rollify
RPG

Planet Name Generator

Names for worlds that don't exist yet — Xephis, Kronos Prime, Aurix-7, Velara. Coined sci-fi names, regal 'Prime' worlds, and catalog-style designations, for science fiction and space campaigns.

Sci-fi planet names — Xephis, Kronos Prime, Aurix-7, Velara.

What makes a name sound like a planet

Sci-fi planet names work in a few recognizable shapes. Some are pure coined words built from hard, alien-feeling syllables (Xephis, Velara, Kronos). Some add Prime to mark a homeworld or capital world (Cygnar Prime). And some use a catalog-style designation with a number (Aurix-7), the way real astronomers label exoplanets. This generator mixes all three so your star map has variety instead of forty worlds that all end in the same sound.

Great for

  • Science fiction — homeworlds, colonies, and the hostile rock the crew crash-lands on.
  • Sci-fi tabletop RPGs — Starfinder, Traveller, Stars Without Number, homebrew space campaigns.
  • Game and map worldbuilding — a galaxy of named systems to explore.

Building a believable star map

Use the shapes to imply hierarchy. Make your core, settled worlds Prime worlds (Sol Prime, Cygnar Prime), your frontier and mining worlds plain designations (Vex-4), and your ancient or alien worlds pure coined names (Xephis). The mix tells a story about how settled each place is. For the people and factions out there, the fantasy name generator works for alien races, and gamertags suit pilot call signs.

FAQ

Are these real exoplanet names?

No — they're invented to soundlike sci-fi worlds. Real exoplanets use catalog codes like "Kepler-442b"; the designation-style rolls here echo that format without reusing real catalog entries.

Can I get only coined names, or only designations?

The roll mixes coined names (~65%), "Prime" worlds, and numbered designations. Keep rerolling for the style you want — coined names have no number, designations end in "-[number]".

Do these work for moons, stations, or systems too?

Yes — the same names fit moons, space stations, and star systems. Add a designation suffix yourself ("Velara Station", "Xephis System") if you want to distinguish them.

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