Deadzones are a game mechanic in Unturned 3.
In the Map Editor, a Deadzone Node creates a permanent radioactive field around the node. The size of the Deadzone can be adjusted with a slider. In the editor, when nodes are visible, a Deadzone Node will appear as a yellow-orange ring.
When The Player enters a Deadzone, a message saying "Entering deadzone!" will appear and their Immunity will start dropping rapidly without a Biohazard Hood or Gasmask. When the Player exits the Deadzone, the message "Exiting deadzone!" is displayed.
Zombies inside a Deadzone Node become their Radioactive Zombie variant.
Cyprus Survival: There is a small Deadzone around the Agros Military Base.
Germany: There is a Deadzone around the town of Cologne.
Greece: A large sized Deadzone at the top-left of the map, notably also covering Meteora Military Base and Trinity Monastary.
Hawaii: A medium-size Deadzone placed on The Ailani, several small Deadzones on the top of Mauna Kea, a small Deadzone in a cave between Alika Base and Waikoloa, a small deadzone on a hill near the construction site by the Unyielding HQ and several other small deadzones located along the coastline.
France: A large Deadzone around Marseille and a medium-size Deadzone around Flamanville Power.
California: A small deadzone can be found at the hospital in Calabasas.