Guardians that watch over and protect a specific area or group.
SecurityProtectionSurveillanceDefense
Current best complexity is 119:
Sentinels can be discovered in Concepts, categorized under Security, Protection, Surveillance, Defense. Guardians that watch over and protect a specific area or group.
It has been discovered by 1 board and crafted 2 times, first appearing 5 days ago. Sentinels can be created from 2 recipes.
Sentinels was first discovered by Evgast's board 5 days ago. They also hold the lowest-complexity recipe, at 119.
Related concepts worth exploring include Ozone Layer, Barrier, Firewall, Navy, Fortress, Fence, and 6 more.