Automated Flame turret. Requires Low Grade Fuel. Sprays flames when triggered.
Homemade Landmine. If you stand on one, you can ask a friend to disarm it before it explodes.
A surface to air rocket site. Requires 25 electricity to function.
A shotgun trap triggered by movement, place near doorways and load with handmade shells.
A metal trap that can injure or even kill people when stepped on. Can be picked up after been triggered.
A set of spikes that will slow down and hurt anyone that walks over them.
A primitive perimeter alarm made from hanging tin cans. Clatters loudly when disturbed, alerting you to any trespassers. Simple but effective.