Seneca was a garden world and the site of various entertainment complexes, retirement communities, and vacation homes used by wealthy executives from Earth. At some point prior to 2202, Seneca's oppressed hospitality workforce used their technical knowledge to build a sniper rifle capable of harassing the residents that they had hitherto been unable to force out. This rifle was eventually developed by Hyperdyne Systems as the Twilight v.4.
Appearances
- Aliens: Fireteam Elite (mentioned only)