AliasesChäoS;HEAd, C;H, カオスヘッド, カオヘ
LengthMedium (10 - 30 hours)
LinksWikipedia, Encubed
Developer5pb. Games & Red Flagship & Nitroplus
Publishers Nitroplus & 5pb. Games & M-trix
 I-VNTP & TLWiki
 Kexue She & Mogu Hanhuazu
 Shinra Tensei & Kae Pro & DeadliNe
Shares characters
Robotics;Notes DaSH
Steins;Gate: Hen'i Kuukan no Octet
Chaos;Head Love Chu☆Chu!
Same setting
Related anime[DB-ANN] Chaos;Head (2008)
Available atJapanese PlayStation Portable version at for US$ 62.99 »
Japanese PlayStation Vita version at for US$ 69.99 »


Takumi is a high school student. He is withdrawn and is not interested in 3D things. In his town, a mysterious serial murder case happens and people get panicked. One day, when he chats on the internet, a man suddenly contacts him and gives him a URL. He goes to the website and finds a blog image that suggests a next murder case... On the next day, it really happens...

[From HimeyaShop]

Daydreams 2.9 Madness 2.9 Paranoia 2.9 Shibuya 2.8 Built-in Encyclopedia 2.8 ADV 2.7 Modern Day Tokyo 2.7 Male Protagonist 2.7 Hikikomori Protagonist 2.6 Student Heroine 2.6 Fear of Death 2.6 Lip Sync 2.5 Denpa 2.5 Heroine with Thigh-highs 2.5 Internet 2.5 No Sexual Content 2.5 Protagonist with a Face 2.5 Other Perspectives 2.5 Senpai Heroine 2.4 Student Protagonist 2.4 Drama 2.4 Graphic Violence 2.4 Mind Screw 2.4 Bloody Scenes 2.3 Ponytail Heroine 2.3 Heroine with Glasses 2.3 Tsundere Heroine 2.2 Imouto-type Heroine 2.1 Detective Work 2.1 Horror 2.1 Multiple Endings 2.1 Multiple Songs 2.0 Infodumping 2.0 High School 2.0 Heroine with Ahoge 2.0 Brief Branches 2.0 Mystery 2.0 Police 1.9 Brief NVL Scenes 1.9 Nurse Support Character 1.8 Loli Heroine 1.8 High Amount of Special Effects 1.7 Protagonist with Imaginary Friends 1.7 Game Over 1.7 Protagonist's Sister as a Support Character 1.6 Genre Savvy Protagonist 1.5 More Than Seven Endings 1.5 Unlockable Routes 1.5 Flashback 1.4 Pre-rendered Backgrounds 1.2 Changeable Clothes 1.1 Chuuni 1.0 Kissing Scene 1.0 Timed Choices 0.9 Mid-game Videos 0.7 Foolish Friend 0.5 Meaningless Choices 0.3


2008-03-2115+  Chaos;Head - Trial EditionFully voicedStory: Simple animationsFreewareCommercial800x600Internet downloadA version 2 of the trial edition was released on the 11th April. This added extras from TECHGIAN May issue DVD.  
2008-04-2515+  Chaos;HeadFully voicedStory: Simple animationsNon-freeCommercial800x6001 DVD  
2009-02-2618+  Chaos;Head Noah - First Press Limited EditionFully voicedStory: Simple animationsNon-freeCommercial1280x7201 DVDContains a rough illustrations hardcover book, a character song CD album.
The port contains new routes for the heroines of the game as well as new CG graphics. The CGs are rendered at a resolution of 1280x720, improving on the PC version's scaling of 800x600.  
2009-02-2618+  Chaos;Head Noah - Regular EditionFully voicedStory: Simple animationsNon-freeCommercial1280x7201 DVDThe port contains new routes for the heroines' of the game as well as new CG graphics. The CGs are rendered at a resolution of 1280x720, improving on the PC version's scaling of 800x600.  
2010-03-2518+  Chaos;Head Noah - Platinum CollectionNon-freeCommercial  
2010-06-2417+  Chaos;Head Noah PortableFully voicedStory: Simple animationsNon-freeCommercial1 UMD  
2010-07-3015+  Chaos;Head Nitro The Best! Vol.4Fully voicedNon-freeCommercial800x6001 DVD  
2010-11-1817+  Chaos;Head Noah for iPhone/iPod TouchFully voicedStory: No animationsNon-freeCommercialInternet download  
2010-11-1817+  Chaos;Head Noah HD for iPadFully voicedStory: No animationsNon-freeCommercialInternet download  
2012-01-3017+  Chaos;Head NoahNon-freeCommercial  
2012-11-2217+  Chaos;Head NoahFully voicedStory: Simple animationsNon-freeCommercial1280x7201 Blu-ray disc  
2014-08-2118+  Chaos;Head Dual - Regular EditionFully voicedNon-freeCommercialContains both Chaos;Head Noah and Chaos;Head Love Chu Chu.  
2014-08-2118+  Chaos;Head Dual - Limited EditionFully voicedNon-freeCommercialContains both Chaos;Head Noah and Chaos;Head Love Chu Chu. Limited edition contains Official Design Works book with artwork and Official Movie Works CD with all promotional clips and openings for Chaos;Head.  
2008-12-3115+  Chaos;Head (patch)FreewareThe patch has been taken offline when negotiation with J-List started.  
2013-04-0617+  Chaos;Head Noah (patch)Non-freeOnly common route is translated!

Edit: 06.04.2013
Linked back directly to  
2015-08-0317+  Chaos;Head Noah (patch)Non-freeCommon route and few others are translated.  
2009-05-0115+  Chaos;Head (patch)FreewareInternet downloadSimplified Chinese  
2012-02-0615+  Chaos;Head Noah (patch)FreewareInternet download  
2016-06-1318+  Chaos;Head NoahFreewareDoujinCHAOS;HEAD NOAH Chinese scenario live(Translated Game Video)

Thanks to @mikiwik
Uploaded on  
2017-05-0518+     Hundun zhi Nao: NuoyaFreewareDoujinInternet downloadStaff and resource refer to pulish website.
Ported to PC/Mac/Android by Ren'Py engine.
Also thanks Mogu Chinese Localization Group.

Forbidden to use any of resource for commercial usage.  
2017-05-0517+  Hundun zhi Nao: Nuoya (patch)FreewareInternet downloadStaff and resource refer to pulish website.
iOS version is a patch to official iOS release.
Also thanks Mogu Chinese Localization Group.

Forbidden to use any of resource for commercial usage.  
2012-03-0215+  Chaos;Head PrologueFreewareCommercialInternet download  
2013-01-0115+  Chaos;Head DemoFreewareCommercialInternet downloaddemo version russian translation  
TBA15+  Chaos;HeadNon-freeCommercialInternet download  
TBA15+  Chaos;Head (patch)FreewareInternet downloadTranslation Progress: 47\??? (23.02.2015)  
2017-11-2316+  Chaos;Head (patch)Freeware  
TBA16+  Chaos;Head Noah (patch)FreewareInternet download  


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Character summary

Protagonist Nishijou Takumi
Main character Aoi Sena
Voiced by Nabatame Hitomi
Main character Kishimoto Ayase
Voiced by Sakakibara Yui
Main character Kusunoki Yua
Main character Nishijou Nanami
Voiced by Miyazaki Ui
Main character Orihara Kozue
Voiced by Tsuji Ayumi
Main character Sakihata Rimi
Voiced by Kitamura Eri
Main character Seira Orgel
Voiced by Tomonaga Akane
Side character Ban Yasuji
Voiced by Ichijou Kazuya
Side characterGrim
Side character Hazuki Shino
Voiced by Aoki Noriko
Side character Kusunoki Mia
Side character Misumi Daisuke
Voiced by Ono Daisuke
Side character Momose Katsuko
Voiced by Kujira
Side character Shogun
Voiced by Yonaga Tsubasa
Side character Suwa Mamoru
Voiced by Yasumura Makoto
Side character Takashina Fumio
Voiced by Ishida Akira

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Popularity: ranked #29 with a score of 33.88

Bayesian rating: ranked #239 with a rating of 7.42



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