Can be built into existing walls to allow movement of friendly units. Can be locked and unlocked. Cannot be converted by enemy Priestesses.
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—In-game description
The Gate is a defensive structure in Chronicles that becomes available once the Civic Age is reached. They allow friendly units to pass through and keep units of other players and animals out, unless the Gate is being kept held open. The Gate can be upgraded to the Fortified Gate by upgrading Stone Walls to Fortified Walls at the Academy in the Classical Age. Gates can be placed on top of existing completed walls to replace them (resources spent on constructing the wall pieces are not refunded).
It is identical to the Gate and Fortified Gate in Age of Empires II. A damaged Gate requires 45 stone to be repaired fully, one and a half times its construction cost.