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Defense Grid
Defense Grid (CivBE)

Secondary technology of Tier 1

Science 249 20xScienceBE
Requires Engineering
Leads to None


Buildings enabled Defense Perimeter
Improvements enabled None
Satellites enabled None
Units enabled None

Allows the Defense Perimeter building. Unlocks the Panopticon Wonder.

"Omnipresent and effective security measures make even the worst neighbors tolerable."

- Élodie, Remarques


In the late stages of Old Earth’s “Cold War,” various nations developed so-called “semi-automated ground environments” (SAGE) composed of networked computers and defense systems (largely missile-based) to serve as a unified defensive grid. Advances in computing and weaponry made these systems increasingly reactive and lethal, and eventually incorporated even production and storage of autonomous weapon platforms. It was inevitably, no matter how some decried it, that such defense perimeters would be recreated by colonial administrations. The most elaborate and efficient of these incorporated terrain barriers, particle and beam weapons directed by orbital platforms, and robotic AFVs, although all stopped short of utilizing WMDs or “planet-killers.”