Editing Gantz (section)

====Spin-offs====
{{main|Gantz: G{{!}}''Gantz: G''|Gantz: E{{!}}''Gantz: E''}}
''Gantz/Osaka'', showing the stories of the Gantz [[Osaka]] team, has been published in Japan in 2010 and compiled in 3 volumes released by Shueisha between October 20 and December 17, 2010.<ref>{{cite web|script-title= ja:GANTZ/OSAKA 1|url= http://books.shueisha.co.jp/items/contents.html?isbn=978-4-08-782343-1|publisher= [[Shueisha]]|access-date= January 9, 2020|language= ja|archive-date= January 22, 2022|archive-url= https://web.archive.org/web/20220122153630/http://books.shueisha.co.jp/items/contents.html?isbn=978-4-08-782343-1|url-status= live}}</ref><ref>{{cite web|script-title= ja:GANTZ/OSAKA 3|url= http://books.shueisha.co.jp/items/contents.html?isbn=978-4-08-782355-4|publisher= [[Shueisha]]|access-date= January 9, 2020|language= ja|archive-date= January 22, 2022|archive-url= https://web.archive.org/web/20220122153637/http://books.shueisha.co.jp/items/contents.html?isbn=978-4-08-782355-4|url-status= live}}</ref> A special chapter ''Gantz no Moto'' that has Hiroya Oku telling the story on how he got into the manga business and what films influenced him was published in ''[[Miracle Jump]]'' on January 13, 2011.<ref>{{cite web|script-title=ja:SF＆ファンタジー描く新雑誌・ミラクルジャンプ本日創刊|url=https://natalie.mu/comic/news/43349|website=[[Comic Natalie]]|publisher=Natasha, Inc.|access-date=January 9, 2020|language=ja|date=January 13, 2011|archive-date=July 21, 2019|archive-url=https://web.archive.org/web/20190721153908/https://natalie.mu/comic/news/43349|url-status=live}}</ref> A one-shot chapter ''Gantz/Nishi'', showing the life of Nishi, was published in ''Weekly Young Jump'' on May 12, 2011.<ref>{{cite web|last=Hodgkins|first=Crystalyn|title=Hiroya Oku Draws Gantz Manga 1-Shot Spinoff|url=https://www.animenewsnetwork.com/news/2011-05-13/hiroya-oku-draws-gantz-manga-1-shot-spinoff|website=[[Anime News Network]]|access-date=January 9, 2020|date=May 13, 2011|archive-date=May 25, 2019|archive-url=https://web.archive.org/web/20190525231524/https://www.animenewsnetwork.com/news/2011-05-13/hiroya-oku-draws-gantz-manga-1-shot-spinoff|url-status=live}}</ref><ref>{{cite web|script-title=ja:「GANTZ」西丈一郎の知られざる放課後を描く番外編掲載|url=https://natalie.mu/comic/news/49261|website=[[Comic Natalie]]|publisher=Natasha, Inc.|access-date=January 9, 2020|language=ja|date=May 12, 2011|archive-date=June 8, 2019|archive-url=https://web.archive.org/web/20190608224733/https://natalie.mu/comic/news/49261|url-status=live}}</ref>

A spin-off, titled ''Gantz G'', was published from November 2015 to March 2017.<ref>{{cite web|last=Hodgkins|first=Crystalyn|title=Hiroya Oku, Keita Iizuka Launch Gantz Spinoff Manga in November|url=http://www.animenewsnetwork.com/news/2015-10-16/hiroya-oku-keita-iizuka-launch-gantz-spinoff-manga-in-november/.94277|website=[[Anime News Network]]|access-date=September 30, 2019|date=October 16, 2015|archive-date=May 20, 2019|archive-url=https://web.archive.org/web/20190520020033/https://www.animenewsnetwork.com/news/2015-10-16/hiroya-oku-keita-iizuka-launch-gantz-spinoff-manga-in-november/.94277|url-status=live}}</ref><ref>{{cite web|url=https://www.animenewsnetwork.com/news/2017-03-01/miracle-jump-magazine-goes-on-hiatus-prepares-for-renewal/.112863|title=Miracle Jump Magazine Goes on Hiatus, Prepares for Renewal|date=March 1, 2017|website=[[Anime News Network]]|access-date=April 30, 2017|archive-date=May 5, 2017|archive-url=https://web.archive.org/web/20170505215803/http://www.animenewsnetwork.com/news/2017-03-01/miracle-jump-magazine-goes-on-hiatus-prepares-for-renewal/.112863|url-status=live}}</ref> The manga was written by Oku and illustrated by Keita Iizuka.<ref>{{cite web|url=http://www.animenewsnetwork.com/news/2015-10-16/hiroya-oku-keita-iizuka-launch-gantz-spinoff-manga-in-november/.94277|title=Hiroya Oku, Keita Iizuka Launch Gantz Spinoff Manga in November|date=October 16, 2015|website=[[Anime News Network]]|access-date=October 16, 2015|archive-date=October 16, 2015|archive-url=https://web.archive.org/web/20151016233754/http://www.animenewsnetwork.com/news/2015-10-16/hiroya-oku-keita-iizuka-launch-gantz-spinoff-manga-in-november/.94277|url-status=live}}</ref><ref name="anime film">{{cite web|url=http://www.animenewsnetwork.com/news/2015-11-14/gantz-manga-gets-full-3dcg-anime-film-in-2016/.95343|title=Gantz Manga Gets 'Full 3DCG' Anime Film in 2016|date=November 14, 2015|website=[[Anime News Network]]|access-date=November 14, 2015|archive-date=December 23, 2020|archive-url=https://web.archive.org/web/20201223035313/https://www.animenewsnetwork.com/news/2015-11-14/gantz-manga-gets-full-3dcg-anime-film-in-2016/.95343|url-status=live}}</ref>

A historical spin-off of ''Gantz'' titled ''Gantz: E'', written by Oku and illustrated by Jin Kagetsu started in January 2020.<ref>{{cite web|last=Sherman|first=Jennifer|title=Hiroya Oku Writes New Gantz:E Historical Spinoff Manga|url=https://www.animenewsnetwork.com/news/2020-01-09/hiroya-oku-writes-new-gantz-e-historical-spinoff-manga/.155097|website=[[Anime News Network]]|access-date=January 9, 2020|date=January 9, 2020|archive-date=February 26, 2020|archive-url=https://web.archive.org/web/20200226123247/https://www.animenewsnetwork.com/news/2020-01-09/hiroya-oku-writes-new-gantz-e-historical-spinoff-manga/.155097|url-status=live}}</ref>