Culture on this planet appears to be rather tribal with an emphasis on mysticism and seers. However, the planet appears to be very technologically advanced. The Aruans claim that they are the most technologically advanced race in the system, even moreso than the Annunaki.
- Kalhu is mentioned in the description of the Bone Circle relic from Raider Zero.
- Kalḫu is the name of an ancient Assyrian city.