- New DLC character "Zohar" & v1.40/v1.41 update! - 16 September 2026
Claws encroaching unseen, the "Doppelganger" Zohar joins the battle under the dark veil!The version 1.40/1.41 update includes the addition of a new character, Zohar, as well as balance adjustments to existing characters and game systems. ▼\ Patch Noteshttps://www.arcsystemworks.jp/portal/post-31443/Thank you for supporting UNDER NIGHT IN-BIRTH II Sys:Celes.
- DLC Character #4 "Zohar" Character Trailer - 29 June 2026
Claws encroaching unseen, the "Doppelganger" joins the battle under the dark veil!
- [Ver.1.35.01] Patch Release - 24 December 2025
This update aims to improve the network connection issues occurring for some players under certain conditions. While we cannot guarantee this patch will fix the issues for all play environments, we expect it will result in improvement for some confirmed instances. We sincerely apologize for the inconvenience caused to the players impacted.
- [Ver.1.35]Patch Notes - 1 October 2025
This update to Version 1.35 consists of balance adjustments for game mechanics as well as some characters.The outline and purpose of the game balance changes are summarized in the “Battle Related Adjustments” section.■General UpdatesChanged Battle Version to 1.35.Fixed a portion of the sign that can be seen in the “Deep Azure Aquarium” stage.Other minor bugs have been fixed.■ Training Mode ChangesWe have added “recovery proration” to the damage display options.The recovery proration value decreases each time you connect combos, and a lower value results in a shorter untechable time.■ Mission Mode ChangesAdded around 5 “Expert” challenges for each character.The difficulty level is extremely high, but please make use of features like the demo assist function to aid in character practice.■ Explanation of Battle Related AdjustmentsAs an overall policy, we reviewed areas where the number of…
- [Ver.1.34]Patch Notes - 29 August 2025
The version 1.34 updates address issues that occurred in versions 1.32 and later.We sincerely apologize for any inconvenience caused.■ Overall ChangesChanged Battle Version to 1.34.We have fixed an issue where the display order of certain custom titles was incorrect.■ Battle Related Changes・ByakuyaFor both the normal and Increased versions of \ (B+C), the landing recovery can now be canceled into actions like dash on hit.While version 1.32 introduced adjustments allowing landing recovery cancellation, it only worked for normal and special attacks, not with other actions like dashes. This caused an unintended nerf and execution issues, as dashing attacks were prone to accidentally triggering other normal attacks. This adjustment fixes this problem.・KaguyaWe have fixed an issue where the voice audio timing for ↘+C>B would occasionally become misaligned.・IzumiFixed an issue where performin…
- [Ver.1.33]Patch Notes - 20 August 2025
In Version 1.33, this update focuses only on addressing urgent bug fixes.We sincerely apologize for any inconvenience this has caused.Until now, our updates have generally set the overall balance standard a bit higher, keeping nerfs to a minimum while focusing on buffs across the board.With Izumi’s release now complete, future updates are planned to slightly lower that standard and include balance adjustments with not only buffs but also nerfs, so that players can enjoy the game’s unique style of mind games and back-and-forth interactions even more.■General UpdatesChanged Battle Version to 1.33.Made minor fixes to text.■ Battle Related ChangesOgreFixed a bug where performing certain inputs after using Chain Shift on \ (↓↓+B+C) could cause the move to behave incorrectly.
- New DLC character "Izumi" & v1.32 update! - 19 August 2025
The Initiator of the final act drifts quietly on the waves…Wield the power of water—Elefee—to forge the perilous path!The version 1.32 update includes the addition of a new character, Izumi, as well as balance adjustments to existing characters and game systems. ▼\ Patch Noteshttps://www.arcsystemworks.jp/portal/post-30285/Thank you for supporting UNDER NIGHT IN-BIRTH II Sys:Celes.
- [Ver.1.24]Patch Notes - 22 May 2025
In the version 1.24 update, we mainly addressed minor display-related bug fixes. ■General Updates Changed Battle Version to 1.24. Fixed animation issues with the stage "North Metropolis - Central Street." Fixed other minor issues. ■ Battle Related Changes ・Gordeau Fixed an issue with the display timing of the attack effect for (B+C) and (→+B+C mid-dash). This issue fix only affects the visuals and not the properties of the moves. Thank you for supporting UNDER NIGHT IN-BIRTH II Sys:Celes.
- [Ver.1.22]Patch Notes - 7 March 2025
This update to Version 1.22 consists of fixes for minor issues. Given the upcoming finals tournament for ARC WORLD TOUR, we have avoided any issue fixes that could end up weakening individual characters and kept changes to a minimum. ■General Updates Changed Battle Version to 1.22. Made minor fixes to text. Fixed other minor issues. ■Network Mode Changes Fixed an issue causing the connection signal indicator (ping value) with the opponent to display incorrectly. *Steam only ■Replay Mode Changes Fixed an issue causing the dummy behavior registered with Replay Assist to playback incorrectly sometimes when using Replay Assist Plus. *Steam only ■Battle Related Changes Fixed an issue where it was still possible to perform additional attacks after whiffing Steer Ender during a combo. This was unintended behavior caused by the previous fix to prevent it becoming unnaturally impossible to land…
- New DLC character "Ogre" & v1.21 update! - 20 February 2025
"King of Devils", Sovereign of Demons, has come! Demolish your opponent with fancy feet and devastating fists! In this update to Version 1.21, we’ve added the new character Ogre and made balance adjustments to existing characters and game mechanics. ▼ Patch Notes https://www.arcsystemworks.jp/portal/post-27942/ Thank you for supporting UNDER NIGHT IN-BIRTH II Sys:Celes.
- [Ver.1.12] Update contents - 30 September 2024
This update to Version 1.12 consists of fixes for minor issues. ■Battle Updates Fixed an issue causing difficulty performing Infinite Worth (A+B+C) during Cross Cast Veil Off under certain circumstances. This fixes cases where a slight difference in timing for the simultaneous button press when inputting Infinite Worth (A+B+C) would often perform certain unintended moves. (This change applies to the following moves: Hyde’s (B+C), Vatista’s (Crouching) (↓+B+C), Yuzuriha’s (↓+B+C), Londrekia’s ←+C>←+C, Kuon’s ↘+C) Fixed an issue causing the follow-up hit to whiff sometimes after hitting with the Increased version of Waldstein’s standard Throw during the latter half of a combo. Fixed an issue causing the standard process intended to allow instantaneous overheads to be blocked crouching, intended to apply for all characters, to not work for Uzuki’s standing block stance. This addresses inst…
- Up to 50% off! Fighting Game Sale! - 12 September 2024
Let's DIVIDE...the price! ●Standard Edition is $24.99 (50% off) ●Deluxe Edition with DLC is $41.99 (40% off)
- 【August 5th】[Ver.1.11] Update contents - 6 August 2024
This update to version 1.11 mainly fixes issues that occurred in version 1.10 and adjusts moves which were not effectively strengthened or weakened as intended. ■Battle Updates Fixed an issue where the minimum base damage for EX Moves and Infinite Worths in certain combos was higher than intended. This fix brings the base damage to the same value as those intended for patch 1.10. Fixed an issue that made it necessary to input commands as if facing in the opposite direction after the opponent had moved behind your character. For example, Linne’s →+C>→+C, had to be input as ←+C instead of →+C if the opponent went behind your back between the two inputs. Fixed an issue where the application would crash when KOing an opponent with a specific combo. Reduced the rendering processing load for some characters’ Infinite Worth and Infinite Worth EXS. ■Hyde Reduced knockback when ↘+B connects with…
- Up to 50% off! [Uzuki Release Anniversary]Summer Sale! - 25 July 2024
Let's DIVIDE...the price! ●Standard Edition is ¥3,740 (50% off) ●Deluxe Edition with DLC is ¥5,940 (40% off)
- New DLC character "Uzuki" & v1.10 update! - 25 July 2024
The Egomaniacal Necromancer Who Fights Alongside Her Spooky Pals💀 Rampage Hilariously! The update to Version 1.10 includes adjustments to balance for existing characters and game mechanics as well as the addition of the new character, Uzuki. This update will add network mode functionality and customizable items that will make this title even more enjoyable. ▼ Patch Notes https://www.arcsystemworks.jp/portal/post-27191 Thank you for supporting UNDER NIGHT IN-BIRTH II Sys:Celes.
- Under Night In-Birth II Sys:Celes on Sale!! - 28 June 2024
Let's DIVIDE...the price! The latest entry in the Under Night series, Under Night In-Birth II Sys:Celes will be going on sale for it's first time! Get the Standard Edition for 50% off! Or go all in with the Deluxe Edition for 40% off!
- June 6th Update contents - 6 June 2024
Version 1.05 mostly consists of issue fixes and readjustments to techniques that have seen their properties altered unintentionally. Overall balance adjustments are planned to come with the next DLC character update. ■General Updates ・Fixed an issue that caused rollback to happen more often when the opponent performed a tech recovery during matches in Network Mode. ・Fixed an issue that caused the matching to be canceled when closing the Quick Select window after changing some items in it while waiting for an online match in Training Mode from the Network Mode. ・Fixed an issue that caused the character colors to sometimes return to default while waiting for an online match in Training Mode from the Network Mode. ・The check for trophy unlock conditions is now performed even when selecting previously obtained items for trophies unlocked by purchasing items in the Gallery Mode. ・Fixed other…
- May 7th Update contents - 7 May 2024
The update from May 7th brings the following changes: -Fixed the text in the Options mode for Korean, Simplified and Traditional Chinese. -Fixed an issue that caused the framerate to drop in the Options mode. -Removed the option "Vertical Sync: Off (in combat)" and replaced it with "Vertical Sync: Off" in the Options mode to improve the game stability. -Fixed the text display on the Keyboard settings options screen. -Fixed an issue that disrupted the display when switching to Fullscreen mode from Borderless Windowed mode. -Fixed the display issue with the controls guide that occured after having set the Start-up option as "Training Mode" or "Network." -Fixed some of the issues that occur when changing BGM in Network Mode. -Fixed issues related to displaying the member list in Player Matches. -Fixed an issue related to the room name in Player Matches. -Added additional error messages.
- [Apr 5] Bugfix and update - 5 April 2024
■Battle Updates Fixed an issue making it difficult to perform a dashing attack when using the input →→ + button press from a dashing state. Fixed an issue making it impossible to perform the same jumping attack mid-air after certain strings when starting a pressure string or combo from a jumping attack under circumstances where it should normally be possible. ■General Updates Fixed an issue making rollback more likely to occur after skipping the pre-match introduction scene during online matches. Fixed an issue with voice and sound effect playback when rollback occurs during online matches. Fixed an issue where the character match-up specific themes would not be selected as BGM when the BGM select is set to"Auto." Fixed other minor issues.
- [Mar 26] Bugfix and update - 26 March 2024
●Added a message displayed when an issue occurs while connecting to the network. ●Added support for inviting friends and joining games. ●Added the "Borderless windowed" option in Graphics Settings. ●Fixed an issue with uploading replays. ●Fixed other minor issues.
