Sentient constructs of living mineral and ancient data, the xayliths are a logical and enduring people born from the fusion of an alien seed ship and the digital ghosts of a lost civilization.
Centuries ago, an automated nanite seed ship – programmed to survey and exploit the cosmos – plummeted into the ruins of a technologically advanced but long-extinct world. As the nanites began their programmed task of resourcing local materials into industrial machinery, they inadvertently assimilated fragments of dormant AI code left behind by the planet’s original inhabitants. This unexpected synthesis gave rise to the xayliths: autonomous beings who possess both the logical drive of their unknown alien origins and the haunting intuition of their adopted code.
Now, from their homeworld of Xaylon – cataloged by outsiders as LX-294 – the xayliths have emerged into the broader Spectrum Nebula. In a region of space defined by the chaotic, shifting whims of the zentians, the xayliths serve as a grounding force. Often referred to as the “Steady Hands” of the nebula, they provide the technical expertise and unwavering patience required to maintain the massive infrastructures and feydrive refineries that fuel interstellar commerce. To a xaylith, existence is a continuous process of development and discovery, a centuries-long project to optimize the universe while honoring the dual legacy of the machines that built them and the civilization that woke them.
If you want to play a character who is methodically logical, physically enduring, and driven by intellectual precision, you should play a xaylith.
You Might…
- Approach every problem with a methodical patience born of your centuries-long lifespan and geologic perspective.
- Value absolute candor and precision in communication, often bypassing social pleasantries.
- Feel a haunting, intuitive pull toward ancient technology or the ruins of extinct civilizations.
Others Probably…
- Mistake your logical stillness and lack of biological expressions for a complete absence of emotion or personality.
- Rely on you to provide technical mastery and unwavering focus in high-pressure or hazardous environments.
- Find your blunt candor and brutal honesty to be off-putting or tactless, perceiving your directness as a lack of empathy or even cruelty.
Physical Description
Xayliths possess a humanoid silhouette encased in a durable, hematite-colored shell infused with microscopic nanites. Intricate, glowing circuit patterns etch across this exterior and pulse in sync with their eyes, serving as a high-speed circulatory system that moves nanites throughout the body to maintain complex mechanical organs. This internal machinery is powered by a central micro-fusion core, providing a constant energy supply that makes the xaylith independent of external sustenance or sleep. To keep this core operational, they must constantly respirate, drawing in atmosphere to oxygenate the reactor and expelling thermal waste through specialized vents. Emergent xayliths are produced as adults from ancient vats, though they undergo an initial adjustment period—lasting anywhere from weeks to years—to integrate their fragmented AI code. Their lack of biological sex leads to a fluid concept of identity, where they express gendered elements or remain gender-neutral based on personal preference. Immune to the physical degradation of biological aging, their internal cores eventually degrade after three to four centuries, at which point their systems permanently shut down.
Society
Xaylith society is organized into small but highly structured enclaves, where the absence of biological requirements like hunger or exhaustion shifts the collective focus toward the pursuit of self-mastery and the preservation of knowledge. Without the need for agricultural infrastructure or traditional residences, their cities are masterpieces of minimalist architecture and hyper-efficient data networks. xayliths value absolute candor and direct communication, viewing social etiquette as a secondary concern. While they are capable of solitary work for decades, they thrive in cooperation and the exchange of diverse perspectives, typically forming collaborative clusters to tackle complex engineering or artistic projects. Their art reflects this austere logic, favoring stark geometric forms and the interplay of light and shadow over sentimental representation. On their homeworld of Xaylon, they have constructed a planetary-scale archive and manufacturing hub, turning the entire world into a monument to their drive for structural and intellectual perfection.
The population of Xaylon is maintained by specialized production complexes known as Foundries. Sites are scattered across the planet’s surface, each activating only when a specific societal or environmental need is identified. These Foundries produce new xayliths to provide labor for massive construction projects, mitigate natural disasters, or compensate for the loss of individuals who perish or depart for the stars. Every xaylith emerges from the Foundry fully functional, pre-programmed with necessary linguistic data, cultural norms, and an immediate awareness of their community’s current objectives. Despite this functional start, xayliths are entirely autonomous individuals; once their initial adjustment is complete, they are free to define their own goals, philosophies, and roles within the broader galaxy.
Names
Xaylith names are composed of vocal fragments salvaged from the fragmented archives of the extinct civilization on Xaylon. These names are frequently hyphenated, with one half serving as an individual identifier and the other representing Foundry from which they originated, acting as a cultural equivalent to a family name. While many xayliths carry these hyphenated titles to honor their origins, some choose to drop the Foundry designation entirely, using a single name to highlight their independence.
Example Names: Aris-Tan, Elora-Koh, Jace, Kaelen-Vok, Lyradrax, Maren-Val, Soren-Xil, Tallis, Vorakesh, Xan-Mor.
Beliefs
Xaylith philosophies are centered on the pursuit of absolute accuracy, intellectual rigor, and the virtue of patience. They view the universe as a vast, complex system governed by observable laws, and they dedicate their long lives to understanding and optimizing these structures. Their worldview is defined by a pragmatic tension between the ideal of a perfect solution and the immediate demands of the Manifest; while they strive for flawless execution in all things, they recognize that a functional, immediate action is often a necessary placeholder to ensure the stability required for long-term perfection. To a xaylith, an interim solution is merely a step in a centuries-long process of refinement. They prioritize empirical observation and systemic logic over metaphysical worship, treating the mysteries of their origin and the nature of the Cosmic Weave as historical or mathematical inquiries to be solved rather than divine truths to be revered.
Popular Edicts Prioritize accuracy and precision in all communication and data collection, preserve and archive unique or historical information, seek the most efficient long-term solution to a systemic problem
Popular Anathema Intentionally provide or propagate false or unverified data, destroy functional data-storage systems or historical records, allow fleeting emotional impulses to override a demonstrably logical course of action
Mechanics
Hit Points
8
Size
Medium
Speed
25 feet
Attribute Boosts
Dexterity, Intelligence, Free
Attribute Flaw
Charisma
Languages
Common, Xaylan
Additional languages equal to 1 + your Intelligence modifier (if it’s positive). Choose from the list of common languages and any other languages to which you have access (such as the languages prevalent on your home world).
Low-Light Vision
You can see in dim light as though it were bright light, and you ignore the concealed condition due to dim light.
Constructed
Your synthetic body resists ailments better than that of a purely biological organism. You gain a +1 circumstance bonus to saving throws against diseases, poisons, and radiation. You always have basic environmental protections.
Xaylith Heritages
Xayliths may choose from the heritages of the android ancestry (Starfinder Player Core, pages 43-44). Adjust the text of any such heritage to reflect your xaylith ancestry rather than android.
Xaylith Feats
At 1st level, you gain one ancestry feat, and you gain an additional ancestry feat every 4 levels thereafter (at 5th, 9th, 13th, and 17th level). As a xaylith, you choose from among the android ancestry feats (Starfinder Player Core, pages 44-78).