Fortifications

Fortifications is a tech from the Neolithic Era, a period of heightened security concerns. Researching fortifications unlocks the first defensive structures for war preparations against the increased raiding of the Neolithic and following eras.

Required for

 * Palisade
 * Gate
 * Wooden Platform
 * Watchtower
 * Wall

Predecessor tech(s)

 * Archery

Successor tech(s)

 * Swordmaking