About this alien race name generator
An alien species with only a name is a rubber forehead. The species worth putting in a campaign have what the great SF settings give theirs: a homeworld, a biology that explains the culture, a technology level, a position in interstellar politics, and at least one custom your players will violate at the worst possible moment. This alien race name generator builds all of it. 'The Aslan of Kuzu' come with a clan-honour system that turns a border treaty into a duel. 'The Bezhad of Sector Five' come with a first-contact ceremony and a corporate predator circling their mineral rights. A name, a species, and a situation — that is the unit of delivery.
Eleven naming registers from across science fiction
Different SF traditions name species differently, and the generator rotates through them. Traveller's Major Races carry ancient, grand names backed by interstellar polities. Stars Without Number factions sound like coalitions because they are. Star Wars species names are quick and cosmopolitan (something you'd catch across a cantina table), while Star Trek member-species names are built for a council chamber, and Mass Effect species each encode a political stance. Eclipse Phase contributes post-Singularity transhuman polities where the question 'what do they look like' has no fixed answer. Known Space ancients carry one defining trait writ large; Lovecraftian elder races carry names older than the concept of naming; newly contacted species arrive transliterated and slightly wrong; and the precursors left nothing but names and ruins for your party to misread.
The name in the database is rarely the name they use
One small piece of real linguistics does more for an alien species than any amount of invented apostrophes: the gap between what a people call themselves and what outsiders call them. Linguists call the first an endonym and the second an exonym, and almost every human culture carries both. The people of Deutschland are Germany to the English, Allemagne to the French, Niemcy to the Poles, and Saksa to the Finns — four outside names for one nation that calls itself something else again. Japan calls itself Nihon; 'Japan' reached English third-hand, through a Chinese reading and a Portuguese ear.
The best SF naming reproduces that gap on purpose, and this generator builds it into the meaning of every result. The felinoid race in the first example is Aslan to the humans who thought they looked leonine, but Fteirle to themselves; the Bezhad's true name is a tonal sound the trade-language can only spell sideways; a survey database files a homeworld under a designation its own inhabitants would not recognise. Deciding who got to name a species — the species, or the surveyors who reached it first — is already a piece of the politics, and the generator answers that question in every entry instead of handing you a bare word.
Why the homeworld and the customs matter
The playable part of an alien species is friction: the thing your crew doesn't know until it costs them. That is why every result commits to specifics — a population figure, a tech level, a communication method, the custom that must be observed and the insult that must not be spoken. An Aslan negotiation fails differently from a Bezhad one, and both fail differently from a vote in a transhuman habitat-republic. The plot hooks stay diplomatic and current: a border proposal with honour-ground buried in it, a merger vote splitting on first principles, a young species about to sign a bad contract.
How to use it at the table
For a one-shot, lift the whole species: the hook is a ready session, first contact to final vote. For a campaign, use the species as a faction — the registers are deliberately system-shaped, so a Traveller-style Major Race drops into any hard-SF sector and a cantina-register species fills out any spaceport scene in thirty seconds. Writers can use the registers as calibration: deciding whether your aliens are named like Vulcans or like Mi-Go is deciding what kind of book you're writing.
What you get
Every roll returns a species name with its source explained (who named them, and what they call themselves), a pronunciation note, a homeworld and population, a history with a tech level and a political position, a visitor's-guide paragraph (physiology, communication, the custom and the insult), and a live diplomatic situation with a deadline a GM can run tonight.