Synth (Institute Construct)

Construct (humanoid), Medium

Racial Traits

Speed
Age Do not age; functionally indefinite
Languages Common, One additional language of choice
Alignment Tendencies Lawful Neutral, Neutral, Lawful Evil (programmed)

Ability Score Increases

CONSTITUTION
+2
INTELLIGENCE
+1

Racial Features

Constructed Physiology

You were built, not born. You do not need to eat, drink, or breathe. You do not sleep; instead you enter Maintenance Mode: an inactive state that lasts 4 hours and counts as a long rest for you. You are immune to disease and have advantage on saving throws against poison. You can be healed and harmed normally by magical and mundane effects. You can be subject to effects that target constructs differently than living creatures.

Usage: Always

Integrated Sensors

Tiny optics and layered sensors let you perceive beyond ordinary human senses. You have darkvision out to 60 feet. When you make a Wisdom (Perception) check that relies on sight or hearing to detect a creature that is not actively hiding, you have advantage if you are stationary or moving no more than half your speed. Your sensory systems are tuned for detection, but they can be temporarily confused by dense fog, magical blindness, or electromagnetic interference.

Usage: Always

Neural Interface

A jack and protocol stack allow you to interface with electronic and magical devices. As an action, you can attempt to interface with a non-magical mechanical or electronic lock, alarm, or recording device within 5 feet. Make an Intelligence (Investigation) check or Dexterity (Sleight of Hand) check against a DC set by the device (typical mundane DCs: 10–20). On a success you learn the device's last recorded state and gain advantage on one check to bypass it. Against arcane wards or powerful enchantments, the DM may rule the interface cannot function. Once you use this trait, you can't use it again until you finish a short or long rest.

Usage: Once per short or long rest

Mimetic Flesh

Your exterior panels and voice modulators let you mimic human features, tones, and small mannerisms. You have proficiency in one of the following skills of your choice: Deception, Performance, or Insight. When attempting to perfectly mimic a single voice or replicate small personal mannerisms you have heard or observed for at least one minute, you have advantage on the ability check for that purpose. You cannot create new memories or entirely fabricate complex personal histories with this feature alone.

Usage: Always

Institute Mark

Many synths bear a discrete Institute sigil hidden beneath plating or encoded under their chassis firmware. If you have been marked by the Institute, certain Institute-safehouses, servants, and systems will recognize you as Institute property and react accordingly (friendly, hostile, or conditioned to obey). Characters and organizations that know how to read the mark may treat you as an asset or as an enemy. If you wish to obscure or alter the mark, you require tools and a successful Intelligence (Arcana) or Dexterity (Tinker's tools) check at a DC set by the DM.

Usage: Always (subject to roleplay)

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