والٹ 87 - Use of the Forced Evolutional Virus administered to it's inhabitants resulted in the والٹ being full of super mutants and centaurs
والٹ 92 - musicians were invited to the والٹ to preserve their talents for future generations. In reality, the والٹ was rigged to expierment on it's والٹ dwellers via white noise to implant subliminal messages into their heads, they hoped to make super soliders
والٹ 101 - The purpose of this والٹ was to test the role of the overseer and see how long they can keep the والٹ dwellers from going outside
والٹ 112 - Bulit to aid Dr Stanislaus Braun, he created a virtual reality, Tranquailty Lane, which his participants could not espace from
والٹ 106 - psychoactive drugs were released into the air conditioning after the والٹ was sealed. This drove the والٹ dwellers mad.
والٹ 108 - studied the conflict for leadership and power within the vault