[11] A major revision, subsequently entitled Under Night In-Birth Exe:Late (アンダーナイトインヴァースエクセレイト, Andā naito invāsu ekusereito), was released on September 9, 2013.

[17] A final revision of the game, entitled Under Night In-Birth Exe:Late[cl-r][18], was announced on August 3, 2019 at Evolution Championship Series.

[23] On September 21, 2021, director Nobuya Narita and composer Raito confirmed on Twitter that the "next" installment of Under Night In-Birth was in development.

[28] An early access release was made available for PlayStation owners in Japan, Hong Kong, England and the United States on January 21, 2024.

When utilized poorly, such as failing to guard against an attack with the appropriate defensive shield, a player can temporarily be locked out of functions related to the Grind system and placed at a disadvantage.

At low health, characters can also use a unique super attack called an Infinite Worth EXS, which are highly damaging and often feature a cinematic element when performed successfully.

After surviving a Void attack, high school student Hyde Kido develops his own power after narrowly escaping with his life thanks to the assistance of his impromptu savior, a mysterious girl named Linne.

However, the true mastermind behind Hilda's movements, among many others, Linne's older brother, and the original wielder of Hyde's sword, Kuon the Aeon has yet to show himself during the Hollow Night.

When Kuon finally makes his true plans that will lead to the destruction of the world, Linne goes on a journey to confront her brother alone.

The roster currently has a total of 27 fighters as of Under Night In-Birth II [Sys:Celes] and one of its Season Pass DLC, with two guest characters from other fighting games.

Series director and producer Nobuya Narita explained that development arose from the team's experiences working on Melty Blood, and a tentative remake of the game.

[32] Due to the challenges they faced working in high definition with high-resolution assets for the first time, the French-Bread staff members frequently consulted BlazBlue game creator Toshimichi Mori.

[33] A decade later, French-Bread and Type-Moon would eventually work together again to continue development on the Melty Blood HD remake project.

[44] Kyle MacGregor of Destructoid said that it was "an intelligent, tactical fighting game that I'll surely be playing for a long time to come."

Biagio Etna of IGN Italy lauded the art and combat system but criticized the steep learning curve and the pacing of the visual novel-style Chronicle Mode introduced in Exe:Late[st].