This page lists all supplementary materials of the Umineko When They Cry series. Only the visual novel release that includes the work for the first time is listed for each of them as Umineko no Naku Koro ni Saku includes all previous works.
| Title | Release Date | Visual Novel | Manga (Tsubasa) | Textual Publication |
|---|---|---|---|---|
| Important Facts Concerning Magic | June 19, 2008 | Symphony | Shinsou Kaimei Dokuhon Episode 2 TFatLG | |
| EP3 Novelty Shorts (Bernkastel's Letter and Anti-Mystery vs. Anti-Fantasy) | August 16, 2008 | Tsubasa (Bernkastel's Letter only) | TFatLG | |
| Memoirs of the ΛΔ | September 28, 2008 | Tsubasa | TFatLG | |
| A Coffee Story | October 10, 2008 | Pandora Vol.2 SIDE-A | ||
| Why Are Closed Room Murders So Beautiful? | November 2008 | |||
| Notes from a Certain Chef | November 16, 2008 | Tsubasa | Volume 1 | TFatLG |
| Letter from a Summoner | November 25, 2008 | Symphony | Shinsou Kaimei Dokuhon Episode 3 TFatLG | |
| The Seven Sisters' Valentine | February 8, 2009 | Tsubasa | Volume 2 | TFatLG |
| Beatrice's White Day | March 15, 2009 | Tsubasa | Volume 2 | TFatLG |
| A Certain Witch Hunter's Interview Tape | April 17, 2009 | Symphony | Shinsou Kaimei Dokuhon Episode 4 TFatLG | |
| The Witches' Tanabata Isn't Sweet | June 28, 2009 | Tsubasa | Volume 1 | TFatLG |
| Arigato For 556 | August 15, 2009 | Tsubasa | Volume 3 | TFatLG |
| Cornelia the New Priest | September 23, 2009 | Tsubasa | Volume 3 | TFatLG |
| Labor Thanksgiving Day Gifts | November 22, 2009 | Tsubasa | Volume 1 | TFatLG |
| Game Master BATTLER! | December 30, 2009 | Tsubasa | Volume 1 | TFatLG |
| Valentine Paper | February 14, 2010 | Tsubasa | ||
| Whose Tea Party? | March 22, 2010 | Tsubasa | Volume 2 | TFatLG |
| Jessica's Mother's Day Present | May 2, 2010 | Tsubasa | Volume 2 | TFatLG |
| To Mount Purgatory, Sakutaro | May 4, 2010 | Tsubasa | Volume 1 | TFatLG |
| Jessica and the Love Charm | June 27, 2010 | Tsubasa | Volume 3 | TFatLG |
| Jessica and the Killer Electric Fan | May 3, 2011 | Hane | Volume 3 | TFatLG |
| Rokkenjima Investigation File | May 22, 2011 | |||
| Forgery no.XXX | June 19, 2011 | Hane | TFatLG | |
| Our Confession | December 31, 2011 | Saku | TFatLG | |
| Angel of 17 Years | December 31, 2012 | Symphony | TFatLG | |
| The First and the Last Gift | December 16, 2015 | TFatLG | ||
| Last note of the Golden Witch | October 4, 2019 | Saku |