🛠️ 重返未來：1999 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。
2026 年 9 月
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9/29二🎉 活動3rd Anniversary Sincere Gratitude
▼Event Time2026-10-01 00:00 - 2026-11-05 04:59 (UTC-5)▼Event IntroLog in during the event to claim \ x1, \ x1, \ x1, \ x1 via Mail.※ \: Use to select any non-collab garment previously available in \ b…
2026 年 7 月
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7/29三🎉 活動Dev Broadcast of 3rd Anniversary
Thanks for all the feedback and support. Version 3.7 On Another's Sorrow will launch on August 13th (UTC-5) with new events, stories, and arcanists. We will be hosting the Reverse: 1999 3rd Anniversar…
2025 年 9 月
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9/19五🎉 活動2nd Anniversary Special Version
2-Year Anniversary Version - Celebration EventEternal MagnetismLog in to get a new 6-star character for free\: Complete the main story 1ST-01 \\: After the version update on 2025-09-19 - 2025-10-30 04…
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。