On the day of judgment, these developers intend to escape on a city-sized vessel.

Japanese architects have published renderings of their concept for a post-apocalyptic city: a vast, buoyant metropolis capable of housing approximately 40,000 people.

According to SWNS, the company N-Ark is working on a solution to the catastrophe that is inspired by Elon Musk’s SpaceX and Noah’s Ark.

The concept based on the Bible and billionaires would offer tens of thousands of people a self-sufficient sanctuary protected from rising sea levels.

Dogen City will include a variety of structures, such as a sports stadium surrounded by a weather-resistant ring, which will incorporate a mobile economic zone called New Ocean.

The N-Ark developers explained that the structures will be able to sail to new locations as required and will be resistant to climate change.

Residents will be able to traverse the city in less than an hour, as its outer rim will measure only 2.4 miles.

It will also include an underwater data center and medical research facilities, in addition to the habitable sections.

N-Ark intends to finish Dogen City by 2030.

“New Ocean refers to the ocean version of Space X’s private space business innovation ‘New Space’,” N-Ark explains in a statement.

“We will propose [a number of] elements (medical, food, housing, information, and electrical services) to realize New Ocean, encourage the entrance of diverse companies, and promote ocean development activities…By doing so, we hope to foster maritime innovation and co-create the future with participating businesses, municipalities, and universities.”