Standard door 1

Security Door

The Security Door is a cheap door that can be built in every room.


While it is low cost, it is the most vital part in the defense of your base as they keep Agents from entering rooms. But a crafty Agent will eventually override a door and open it, when this is done the Agent must be killed and the door must be fixed by a Technician.

The last one is very useful if you want to make sure a room is secure, but make sure that none of your minions are inside the room when you set it as they cannot leave it until you change it back or you kill them.