The Sentinel Outpost is a special building first released during the 2020 Forge Bowl Event.
It gives a stacking 2% Defense Boost to your attacking army rating.
Upgrade[]
The Sentinel Outpost can be upgraded by Sentinel Outpost Upgrade Kit item. To upgrade the Sentinel Outpost, use the Sentinel Outpost Upgrade item on the Sentinel Outpost that is already situated in your city. Its upgraded version will then be placed directly on the same spot in your city.
When upgraded, the defense boost for the attacking army's defense increases to 4%.