Not quite an artifact, actually.
Used to unlock the entrance to strange temples, which have an artifact as a prize.
EDIT: Found a mall after leaving the farm. I’m feeling like a killing machine, and maybe I’ll find some much-need medkits, so…fuck it. Chaaaaarge!
EDIT 2: Got in, found a couple medkits, got out. Removed Acidic Discharge and Wire-Induced Stiffness. Not bad for the 30-odd zombies killed during that.
EDIT 3: …advanded submachine gun? What the fuck, I accidentally turned on generic guns. Bleh.
EDIT 4: Can’t wear a diver’s watch over webbed hands. Damnit, and I thought that update that made watches actually cover a body part was a good idea. ;w;