The CIS droids in the Star Wars: Episode I - The Phantom Menace come off as cold, emotionless and what we typically think as "robots" but in Star Wars: Episode III - Revenge of the Sith it seems they have progressed in terms of becoming more "human" in a sense (screaming as being sliced by a light saber or screaming as being blown out into space).

Is there any in-universe reason for this or is it simply for the audience?

  • 2
    Always assumed that it had something to do with the control ship in the first movie. In Phantom Menace they are more like remote controlled drones but in the later movies and the Clone Wars series they seem to have made them more autonomous.
    – Boelabaal
    Jul 5, 2015 at 7:46
  • My take was what they call in the OGRE Cyberatnk game universe "The Descartes Revolution" As Boelabaal points out, the later CIS droids are made autonomous from Cotrol Ships, and as with teh cybertanks, the more independent thinking they are able to do, the more self-awareness and intellect develops, and thus personality begins to grow. As for pain reception, that seems a little . . . sadistic on the part of designers working of 'cannon-fodder' war droids, or perhaps it's the Third Law - prevent droids being harmed by making an incentive not to be harmed? Cost effectively? Jul 13, 2015 at 5:36
  • imagine splashing out the cash to upgrade your droid to scream when in pain...
    – Daft
    Jul 27, 2015 at 14:23

1 Answer 1


The models shown in TPM were OOM-series which are described as being smarter than the initial batch of B1's. The B1's were mass produced to eventually replace the OOM-series for the Clone Wars.

As to why the B1's behaved the way they did, this if from their article on Wookieepedia:

Although the earlier generations were entirely dependent on Central Control Computers, post-Naboo models were retrofitted with cognitive models that allowed independent thought, and featured a greater degree of independence and personality. However, labored with more and more specialized roles that pushed the limits of their programming, many older droids developed personality quirks and a tendency to excessively comment on their situations in an attempt to handle the data overflow that had strained their old logic modules.

In case you are wondering why the B1's weren't all that smart in general, here is a good post on the subject.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.