Spider drone

Spider drones are robots employed by the Chinese Army in the Anchorage Reclamation simulation in the Fallout 3 add-on Operation: Anchorage.

Background
Before the war, these robots served as mobile landmines for the Chinese army. Their method of attack is to approach enemy targets and simply self-destruct; the explosion acting as a fragmentation mine would. They are only encountered briefly during the quest "Paving the Way."

According to a Chinese terminal entry, the model encountered in the Anchorage Reclamation simulation is designated "spider drone Mk VI prototype" and are air dropped via bombers.

Gameplay attributes
A Chinese terminal entry advises their own soldiers to be careful around the drones, even though they are configured to only attack Americans. To this effect, one will occasionally see a Chinese soldier fighting one of these on the way to the Chimera Armor Depot.

Appearances
Spider drones appear in the Fallout 3 add-on Operation: Anchorage.

Behind the scenes
A modified version of the spider drone appears to be a projectile for the cut spider rifle weapon in the Fallout: New Vegas add-on, Old World Blues.