GECK

The G.E.C.K. or Garden of Eden Creation Kit is a terraforming device created by Future-Tec, a division of Vault-Tec Corporation, to ease the process of harnessing the post-nuclear wasteland for vault dwellers.

Gameplay
Developed by Stanislaus Braun, the kit contains the basic amenities needed to establish a post-nuclear settlement. Packed into a briefcase, Vault-Tec advertised that the apparatus was "the resource for rebuilding civilization after the bomb."

The kit included seed and soil supplements, a cold fusion generator, matter-energy replicators, atmospheric chemical stabilizers, and water purifiers. The replicators were advertised as capable of creating food and basic items needed for building new environments. Reading material and information was included with the kit, including selections from the Library of Congress, a complete set of encyclopedias, and other information that would benefit those trying to survive. 

Fallout 76


As part of the experimental Vault 94, the G.E.C.K. in Appalachia was guarded by the vault dwellers until they were overrun and murdered by outsiders. The same individuals that killed the dwellers attempted to destroy the kit. The resulting explosion caused a subsequent mutation and environment that was from then on referred to as the Mire.

Appearances
The G.E.C.K. appears in Fallout 2, Fallout 3, Fallout 76, and Fallout Shelter Online.

Behind the scenes
An irradiated G.E.C.K would have appeared in the canceled Fallout Tactics 2, and a modified prototype G.E.C.K. would have appeared in Fallout: Brotherhood of Steel 2. It is mentioned in the Vault Dweller's Survival Guide and in the Fallout Bible.