A Sensor Fragment, formerly known as an Unknown Fragment, is a very rare Manufactured Material introduced in v2.3.
Originally known as an 'Unknown Fragment', this is a piece of a Thargoid sensor. Since they have not been given a designation by intergalactic trade authorities, it is impossible to buy or sell them legally.
— In-game description
Known Sources Edit
- Non-Human Signal Sources
- Destroy Thargoid Sensors
- Destroy Scavengers at Thargoid Surface Sites
- Alien Crash Sites
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