Inanna (イナンナ, Inanna) is the capital city of New Babylonia and has the largest population that first appeared in True Divine Generation: Need for Speed... game in Sonic Monster World series.
- "Inanna is known for having an exotic tradition and having a powerful magical form, Inannian. This beautiful jewel is the heart of New Babylonia, having its nickname "The City of the Future""
- —Description, True Divine Generation: Need for Speed...
The main language of the city was actually called Innian. Despite without using its language instead Inannians use English
Inanna celebrates ceremonies that honored some important events such as year, veteran ranks, newborn, or the Sorarian Moons. The year ceremonies are common for the city and its people to see the twilight's "birth" furthurmore the old time goes to the afterlife. The Statue of Inanna glows in the middle by the moon's lightray having the purpose to cause a powerful laser-like beacon straight in the night sky directly to the eight-pointed star.
The Sorarian Ceremony is rare to Inanna.
Nanaya () is Inanna's suburban city as was founded by a leader of Babylon Rogue, after the battle.
Garden of Nanaya
The Garden of Nanaya (), named as Alephia or Oyora, is a huge mystical grottolike area that was found by the unknown Iadian priestess
In True Divine Generation: Need For Speed IV, Sonic destroyed the Garden when he encounters Jet and Serha, after his engagement refused by Serha, trying to stop him from eliminating the whole humanity and millions of civilised beings across the entire world possessed by the vengeful god Exnir.
- The city's named after a goddess of love, war and political power from the Sumerian myth in reality. Although, the statue of the city is a hidden reference the eight-pointed star, known as the Star of Ishtar.
- Jet the Hawk believes that his father was once a citizen of Inanna, but it is unknown if was confirmed in Need for Speed series.
- According to Tails, he confirms that Serha is adapting the culture of the secret Ancient Babylonians' occult.
- In Mashin Megami Sedai: Hitsuyo-sei no Supido, Sonic and Jet felt the strange sign in their tattoos as they glow at nightime during the year ceremony. These hints that it is rare that happens in Inanna.