The updated version of Replicant adds a fifth ending that occurs after a new game is begun following the fourth ending, beginning following the defeat of Kainé's Shade nemesis Hook. Three years after the Shadowlord's defeat, Kainé continues having nightmares about losing something precious, and fights increasingly-hostile Shades. Going to the Forest of Myth to investigate its sudden silence, she finds everyone killed by machines emerging from its central tree, revealed to be the control unit recording Replicant memories, its AI communicating with Kainé through twin childlike avatars. Kainé is aided in fighting past machine duplicates of her by Emil, eventually entering the tree's mainframe and battling enemies drawn from her memories, culminating in a battle with a more-powerful Hook helped by the data remains of Grimoire Weiss. Kainé destroys Hook and the AI, restoring the protagonist in his young form; all of the player's save data prior to the fourth ending is consequently restored.

NIER - Metacritic

Cavia (April 27, 2010). Nier ( PlayStation 3, Xbox 360). Square Enix. Protagonist: You alright, Yonah? / Yonah: Sorry, Dad. ...I'm sorry. It'll stop in a second. I promise.Spencer, Spencer (September 29, 2011). "Nier Developer Cavia is No More". Siliconera. Archived from the original on January 21, 2013 . Retrieved January 23, 2013. Grimoire Nier: The Complete Guide + Cels] (in Japanese). ASCII Media Works. May 28, 2010. pp.160–163. ISBN 978-4048686716. Masashi, Oji (December 28, 2010). 総勢60名以上のゲームクリエイター＆声優/4Gamer執筆陣に聞いてみた「2010年の注目タイトル」と「2011年への意気込み/期待」[More than 60 game creators & voice actors / 4Gamer authors asked "2010 Featured Titles" and "Enthusiasm / Expectations for 2011"] (in Japanese). 4Gamer. Archived from the original on July 13, 2011 . Retrieved July 13, 2011. After the files are erased after Ending D, the game does not let you choose the same name for another playthrough. To attain Ending E in Nier Replicant ver.1.22, a new save file must be created and played normally until a certain point in the game is reached (When Nier and Weiss kill Hook and revive an unconscious Kainé).

8 Differences Between Nier Gestalt And Nier Replicant - TheGamer 8 Differences Between Nier Gestalt And Nier Replicant - TheGamer

Sherif Saed (March 23, 2017). "Modders fix Nier: Automata's resolution bug on PC, drastically improve frame-rate in unofficial patch". VG247. Archived from the original on July 30, 2022.Saito, Yosuke (March 17, 2010). "Nier Yosuke Saito Interview (Xbox 360)". GameSpot. Archived from the original on July 13, 2011 . Retrieved July 12, 2011.