The Geonosian droid factories were a massive subterranean battle droid factory on Geonosis. Located near the Petranaki arena, the foundries were completely automated and hazardous to anyone entering them. Anakin Skywalker, Padmé Amidala, R2-D2 and C-3PO stumbled into the factory when trying to rescue Obi-Wan Kenobi: Anakin lost his first lightsaber, while C-3PO was decapitated.
- Star Wars: Episode II Attack of the Clones (First appearance)
- Catalyst: A Rogue One Novel (Mentioned only)
- Darth Vader 3: Vader, Part III (Indirect mention only)
- Aftermath (Mentioned only) (First identified as Geonosian droid factories)
- Star Wars Special: C-3PO 1: The Phantom Limb (Indirect mention only)