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Mentioned-only character
Biography and appearance
AffiliationThe Institute
RoleRunaway synth
Mentioned inFallout 4

L3-37 (given the identity "Leo" after having a mem-wipe) is an Institute synth in 2287.

Background[edit | edit source]

L3-37 was an escaped synth assigned to X9-73 for recapture. L3-37 was mem-wiped, given the identity "Leo", and last seen at the Corvega assembly plant, where it has managed to evade capture twice using weapons skills learned from The Railroad.[1]

Appearances[edit | edit source]

L3-37 is mentioned only in Fallout 4.

Behind the scenes[edit | edit source]

L337 is one variation of the word leet; the method of forming words using numbers and other characters, also known as 1337 or leetspeak.


Institute flag.png
Fo4 Institute Seal.png