robotic sledge

[PatNoodle]

what is the use of it just for zombie killing? never seen one before. does it use fuel?

[FancyLad]

It's best used as a horde night defense. Right click to deploy it. Place it where zombies have to pass by it to get to you. It will automatically attack as long as you remain in range of it. No fuel required.
I typically put it beside an elevated path to my horde base. It will knock off many of the zombies making the horde more manageable.
As a melee weapon it is pretty useless. Can be used as a zero stam tool to destroy blocks, but is still lacking.

[👀nɐMelɐK]

They do damage, but very little, it's mostly a utility bot.
When proper utilized it's very usefull, mostly used to push zeds off of a walkway, to make 'em fall and run around to try again.

[Brevan]

When you deploy a Robotic Sledge, it might knock down nearby allies (even if ally-damage is turned off).

[Uscari]

It's essentially a crowd control tool.

As other have pointed out it can be powerful for horde night setups, however I've also found it very useful as a combo-melee weapon.

When I go through Tier V quests, and I don't want to put points into strength, I run this weapon to help deal with lone ferals. You use this to knock them down, then finish them off with the appropriate melee.

It requires no fuel, no stamina, no other resources, only durability. It's excellent for saving bullets.

[westernwilson]

Will the zombies try to destroy it?

[Crater Creator]

Originally posted by westernwilson:

Will the zombies try to destroy it?

Only if it gets in their way, on their way to you. The same goes for vehicles.