| 2018-08-21 | Released | 游戏正式发布 |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call All Characters |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Hyde |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Phonon |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Mika |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Enkidu |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Wagner |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Chaos |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Nanase |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Byakuya |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Hilda |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Yuzuriha |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Vatista |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Merkava |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Gordeau |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Carmine |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Waldstein |
| 2018-08-21 | DLC | UNDER NIGHT IN-BIRTH ExeLate[st] - Round Call Voice Linne |
| 2018-08-27 | | Hot-Fix (August 27th, 2018) |
| 2018-09-03 | | Hot-Fix (September 3rd, 2018) |
| 2018-10-11 | | Patch1.02 (October 11th, 2018) |
| 2018-11-22 | | Patch1.03 (November 22nd, 2018) |
| 2019-04-03 | | Patch1.03kr (April 3rd, 2019) |
| 2020-03-27 | DLC | UNICLR - Additional Character Londrekia & Additional Gallery Item |
| 2020-03-27 | DLC | UNICLR - Additional Character Color 5 |
| 2020-03-27 | DLC | UNICLR - Additional Character Color 6 |
| 2020-03-27 | DLC | UNICLR - Additional Character Color 7 |
| 2020-03-27 | DLC | UNICLR - Additional Character Color 8 |
| 2020-03-27 | DLC | UNICLR - Additional Londrekia's Color (No.31-40) |
| 2020-03-27 | DLC | UNICLR - Londrekia's Round Call Voice |
| 2020-03-27 | Update | UNDER NIGHT IN-BIRTH: Exe-Late [cl-r] free update available NOW!!! |
| 2020-04-07 | | UNICLR v1.03b Online stats hotfix (Apr 7th) |
| 2020-04-28 | | UNICLR v1.04 Update (Apr 28th) |
| 2026-08-24 | | |