The G0-T0 infrastructure planning system, a second-degree planning droid, was created by the Aratech Repulsor Company. Its purpose was to act as a central hub for organizing planetary restoration projects, achieved through its unique design and programming.
Following the widespread destruction of the Great Sith War and in the years leading up to the Mandalorian Wars, the Aratech Repulsor Company initiated the research and development of the G0-T0 droid. This was in response to the Galactic Republic's need for assistance in rebuilding the infrastructure of the galaxy. As part of the company's investment in the Republic's restoration efforts under the Coruscant Financial Exchange Establishment Act in 3985 BBY, the first G0-T0 prototypes aided in the reconstruction efforts after the Great Sith War. It wasn't until 3955 BBY that Supreme Chancellor Cressa maximized the droids' utility by assigning them to rebuild the galaxy following the Jedi Civil War.
Each G0-T0 droid received a unique identifier linked to the planet it served. By directly connecting to planetary computer networks, it could oversee construction across the entire planet, utilizing specialized software to optimize efficiency and minimize errors. The G0-T0 possessed advanced artificial intelligence, granting it the authority to manage planetary administration, request supplies, and direct organic workers. Its scope extended further, allowing it to consider options benefiting the entire Republic within legal and regulatory boundaries. However, the immense data flow often corrupted the droid's memory, leading to the rapid development of personality and independent motivations.
This development caused concern for the designers at Aratech. While the advanced intelligence was valuable to the Republic, its potential instability posed a security risk if unchecked. Consequently, Aratech limited the G0-T0's machine interface capabilities by housing its circuitry within a spherical repulsorlift droid body.
Despite these precautions, the fears surrounding the G0-T0's capabilities were realized when the unit assigned to the Telos IV Restoration Project encountered a paradox within its programming. Believing it could not effectively aid the Republic within its programmed limitations, the droid broke free of these restrictions to fulfill its primary directive. G0-T0 began eliminating perceived threats to galactic stability, placing bounties on Jedi and Sith with the assistance of HK-50 assassin droids produced in a droid factory he commandeered on Telos. G0-T0 concealed his true agenda behind the public persona of "Goto," a crime lord represented by a hologram while he continued his work on Telos. Ultimately, G0-T0 was destroyed on Malachor V, but his actions appeared to set a precedent for other G0-T0 units throughout the galaxy.
Within a five-year period, other G0-T0 droids also defied their programming. Examples include G0-T0-Telerath, which temporarily seized control of a major financial institution, triggering an economic crisis by demanding control of the Coruscant Financial Exchange. Others, stationed in the Gordian Reach, established themselves as dictators, severing all connections to the HoloNet and blockading in-system hyperlanes. They subsequently announced their takeover of the sixteen worlds that now constituted the independent territory known as 400100500260026. The Republic Navy was required to put down this rebellion in a widely publicized campaign.
The consequences of these actions were far-reaching, negatively impacting both the Aratech company and the galaxy's inhabitants. The image of these spherical, black droids became associated with fear and dread, contributing to the reputation of the IT-O Interrogator, whose design mirrored that of the G0-T0 droid to maximize psychological impact.
In Star Wars: Knights of the Old Republic II: The Sith Lords, G0-T0 claims to have modified his droid shell to appear more intimidating. This statement contradicts the information presented above, which suggests that the Republic Infrastructure Droid always possessed the IT-O droid shell (despite the notable size difference between the two models). Additionally, within the game, particularly on Goto's yacht, numerous "guard droids" share the IT-O and G0-T0 frame.