Alien Race Generator

Descriptions of alien races as complex as you like them, from simple appearance to a complete backstory!

  • For simple physical descriptions, choose 'Description.'
  • Choose 'Detail' to get a cultural snapshots and 'extras' for the race.
  • Choose 'Complete' to get a complete profile of the race and their place in the universe.

The Sanctum has had a technical upgrade in late September, 2025. If you see any issues, you can reach me at my Linktree.

My future Sanctum plans are here. Grab the data archives here!

Other generators you may like: Alien Race Name Generator
Your Options:
Races
The race that resembles the centaurs of earth mythology. This race has tentacular limbs. Their government is extremely corrupt. They come from a high-gravity, rocky, mineral-poor world that has a single moon and is known for having some particuarly unusual wildlife.
The thick-skinned race. They move by crawling along the ground. They can create illusions. They reproduce by budding off new members of their race. They have a tightly organized military. They are a growing empire. They come from another time.
The water-based race. This race has tentacular limbs. They fly by means of gas sacks. They can manipulate time. Their greatest leaders were once politicians. They have quite the sense of humor. They are locked in an battle with age-old enemies.
The bulky, bovine race. They are very long-lived. Their government is ethical in its own way. Most of their species ascented to a godlike existence - they are the descendents of those that did not. Their world of origin is barren, has many moons and many rings surrounding it, and is known for its dangerous wildlife.
The saurian race. This race has highly specialized limbs for various uses. They are omnivores. Their major technical achievements are in space travel. They have a rivalry with another race. They come from a high-gravity, mineral-rich world that has several, broken rings surrounding it and is known for having some unusual ore deposits.
The spindly, saurian race. They have senses that let them navigate through hyperspace. They can withstand incredible damage before dying - or even slowing down. They are a race of scholars. Their economy is dependent on one technology: psychology. They come from a high-gravity world that is known for having its own special natural beauty.
The elegant race that resembles the chimeras of earth mythology. Their society is dependent on one technology: anti-gravity. They were once a dead people - what brought them back to life is a matter of speculation.
The cumbersome race. This race has stubby limbs. They are famous for producing spies. They are masters of cloning. Their cuisine is spectacular. They are involved in a subtle conflict with another race to determine the destiny of other, younger species.
The spindly race of humanoids. Their skin is their major sensory organ. This race has elongated limbs. They are omnivores. Many members of their species are scavengers. They come from a different level of reality.
The race that resembles the manticores of earth mythology. Biologically they are inclined to be explorers. Their government is extremely corrupt. They control only one planet.

 

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