🛠️ UNDER NIGHT IN-BIRTH II Sys:Celes 更新紀錄
開發商在 Steam 發布的官方公告：修補檔、新內容與活動，依時間整理。點標題看完整內容。
2024 年 9 月
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9/12四🎉 活動Up to 50% off! Fighting Game Sale!
Let's DIVIDE...the price! ●Standard Edition is $24.99 (50% off) ●Deluxe Edition with DLC is $41.99 (40% off)
2024 年 7 月
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7/25四🎉 活動Up to 50% off! [Uzuki Release Anniversary]Summer Sale!
DIVIDE...the price! ●Standard Edition is ¥3,740 (50% off) ●Deluxe Edition with DLC is ¥5,940 (40% off)
資料來源：Steam 官方公告（每 6～24 小時更新）。標題與摘要版權屬於原開發商。