DSD1 dwarf spider droid/Legends

The Dwarf spider droid is a battle droid manufactured by the Commerce Guild to support the cause of the Separatists. It was similar in function to a typical combat vehicle. Also known as the burrowing spider droid because it was first used to destroy opposition in narrow mine shafts. It was also used to punished customers who had declined to pay their taxes to the Commerce Guild.

It's main weapon was a central laser cannon mounted on its face to look like a nose. The droid's small frame and four all terrain legs made it suitable for warfare in dangerous mines. However, because of the fixed laser cannon, it could not turn around to track enemies, thus making it inferior to speedy targets. During the Clone Wars, the dwarf spider droid was used on the front line in front of platoons of B-1 battle droids and the larger Homing spider droids. The Dwarf Spider Droid also works in conjunction with the larger Homing spider droid and can operate as an armored scout exploring the battlefields. Infrared photoreceptors and powerful scanners enable the droid to survey the terrain and relay target data back to the Homing spider droid. When it identifies a target, it sends a tracking message to the Homing spider droid, which then moves toward the signal to deliver the killing blow.

Though most Separatist war vehicles were deactivated after the end of the Clone Wars, the dwarf spider droids were used by the Empire to enforce the submission of former Separatist worlds.