The Deep Sea of Madness
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Alternative Titles

Synonyms: Rokusen
Japanese: 6000―ロクセン―
English: The Deep Sea of Madness
More titles


Type: Manga
Volumes: 4
Chapters: 22
Status: Finished
Published: Sep 30, 2010 to Jul 30, 2012
Genres: Horror Horror, Mystery Mystery, Supernatural Supernatural
Demographic: Seinen Seinen
Serialization: Comic Birz
Authors: Koike, Nokuto (Story & Art)


Score: 6.291 (scored by 32153,215 users)
1 indicates a weighted score.
Ranked: #172632
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2729
Members: 7,359
Favorites: 22
Ranked #17263Popularity #2729Members 7,359
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Volumes: /4
Chapters: /22


"Here be monsters," this expression has always been used to speak of the ocean—a dark, impenetrable world that can only conceal unimaginable horrors that the human can't see... often not until it is too late. A series of unexplained accidents happen at a submarine platform 6,000 meters beneath the surface and, in response, a group of scientists and cadres are sent to investigate. Before long, the members of the party start to get haunted by horrifying, elusive visions... and the rash of brutal deaths once again resumes. Is it just a collection of freak accidents and hallucinations caused by sheer paranoia, the claustrophobic environment and dysbarism... or is there really something more lurking in this abyssal station?

(Source: jCafe24)


6000 was published in Italian as 6000 Rokusen - Gli abissi della follia by Panini Comics under the Planet Manga imprint from June 15, 2013 to May 10, 2014.



Jan 29, 2018
Basically it's Event Horizon 6,000 meters below the sea.

Amazing artwork that plays with shadow to create truly eerie and horrifying images. Even the scenes where nothing is happening have an overwhelming sense of isolation and dread thanks to the art.

I don't know if the mangaka is a naval structure otaku or a undersea engineer but the depictions of the underwater facility where extremely detailed. The research center felt like a real place which added to the horror. You really get a feel for the sprawling complex that they're trapped in.

The plot uses interesting influences from Aztec religion which I've never seen in ...
Nov 20, 2017
Mixed Feelings
Art - 9 - Everything is quite well drawn. I have no complaints.

Character - 7 - I'm pretty easy to please as far as character development goes, but I often had trouble telling characters apart

Story - 8 - Now this is where things get difficult. I think that the story presented here is a solid 8; it was very good. However, it was incredibly poorly executed and hard to follow. There are so many instances where the reader is presented images with no context. I can't tell if the author is neglecting to include critical information where it matters, or if they are failing to ...
Mar 16, 2016
It was a disappointment. Maybe the version I read was poorly translated or it was just poorly written. It hard a hard time getting points across to me, both artistically and dialogue wise. The art is solid but the flow of and the sequences were crappy. I had no idea what was happening most of the time.
Story wise, I am really really let down. It takes place in a facility 6000m underwater where a mysterious massacre occurred! You can play around with so many types of fears! The deep, dark ocean itself scares me personally, nightmare deep sea creatures, claustrophobia(Come on, you can imagine ...

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Poll: 6000: Rokusen Chapter 22 Discussion
Stark700 - Dec 25, 2014
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