Stable X appeared in the EAST Corp Productions audio drama Terminal Secrets. In episode 5, it is revealed to be Stable 10 since X means ten in roman numerals.

Stable X (10)
Notable Members Butterfly Stitch
Appearances Terminal Secrets

The Stable's Status Edit

As of 20 year prior to Fallout: Equestria it was still functioning an operational.

Experiment Edit

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Observe the experiments of other stables and determine if the stable's experiment was successful or if it failed. If it is successful the analyst has the power to open the stable's door, if it is deemed a failure the stable is cleansed of all inhabitants and a pony is sent to collect anything of value in the stable.