G.E.C.K.

The Garden of Eden Creation Kit (G.E.C.K.)

The Garden of Eden Creation Kit (G.E.C.K.) was a device created by Future-Tec, a division of Vault-Tec Industries, which was meant to revitalize areas of a post-nuclear wasteland. The concept of the device as well as its design was completed by Doctor Stanislaus Braun, a brilliant, if egotistical, Vault-Tec researcher. It was used to create Vault City.

Source Links:

http://falloutwiki.com/GECK