Update history
Latest UNDECEMBER: The Forge updates
Search patches, hotfixes, and dev posts. Load more to keep browsing the timeline.
Browse updates
Published changes
Search updates. Filter by source or date. Open any row for the full patch notes, or load more to continue the timeline.
- UNDECEMBER: The Forge
Jun. 25 Scheduled Maintenance
Greetings, Rune Hunters. We would like to inform you that UNDECEMBER will undergo scheduled maintenance on Jun. 25 (Thu) to provide even more reliable game services. Please see below for more details on the maintenance…
Patch notes1 changeGameplay - UNDECEMBER: The Forge
Notice of Products Available for Sale After Jun. 11 (Thu)
Greetings, Rune Hunters. We would like to inform you about the new products that will be available for purchase after the update on Jun. 11 (Thu). You can find detailed information about these products in the guide belo…
Event2 changes - UNDECEMBER: The Forge
Notice of Events Taking Place After Jun. 11 (Thu)
Greetings, Rune Hunters. We would like to inform you about the events that will take place after Jun. 11 (Thu). Please see below for more details. List of Upcoming Events 1. Souls Awakening in the Sweltering Heat Event…
Event16 changes - UNDECEMBER: The Forge
[Completed] Jun. 11 Scheduled Maintenance
Greetings, Rune Hunters. We would like to inform you that UNDECEMBER will undergo scheduled maintenance on Jun. 11 (Thu) to provide even more reliable game services. Please see below for more details on the maintenance…
Patch notes1 changeGameplay - UNDECEMBER: The Forge
Advance Notice on the End of Package and Product Sales
Greetings, Rune Hunters. We would like to inform you in advance that certain packages and products currently on sale at the Shop will no longer be available after the following dates. Please see below for more details.…
Event3 changesGameplay - UNDECEMBER: The Forge
[Completed] May. 28 Scheduled Maintenance
Greetings, Rune Hunters. We would like to inform you that UNDECEMBER will undergo scheduled maintenance on May. 28 (Thu) to provide even more reliable game services. Please see below for more details on the maintenance…
Patch notes1 changeGameplay - UNDECEMBER: The Forge
May. 26 Server Patch
Greetings, Rune Hunters. UNDECEMBER will be undergoing a server patch on May. 26 (Tue) to address identified issues. Please refer to the following information for details. May. 26 Server Patch Server Patch Schedule: May…
Announcement4 changesFixServer - UNDECEMBER: The Forge
May. 20 Server Patch
Greetings, Rune Hunters. UNDECEMBER will be undergoing a server patch on May. 20 (Wed) to address identified issues. Please refer to the following information for details. May. 20 Server Patch Server Patch Schedule: Ser…
Announcement5 changesServer - UNDECEMBER: The Forge
May. 19 Server Patch (2nd)
Greetings, Rune Hunters. UNDECEMBER will be undergoing a server patch on May. 19 (Tue) to address identified issues. Please refer to the following information for details. May. 19 Server Patch Server Patch Schedule: May…
Event9 changesFixServer - UNDECEMBER: The Forge
May. 19 Server Patch
Greetings, Rune Hunters. UNDECEMBER will be undergoing a server patch on May. 19 (Tue) to game service stabilization. Please refer to the following information for details. May. 19 Server Patch Server Patch Schedule: Ma…
Announcement4 changesServer - UNDECEMBER: The Forge
[The Forge] Season Celebration Event Notice
Greetings, Rune Hunters. A season commemorative event will be held for the valued Rune Hunters joining Undecember for the new season! Please see below for more details. [List of Upcoming Events] 1. [The Forge] Season Ce…
Event2 changes - UNDECEMBER: The Forge
Notice of Events Taking Place After May. 14 (Thu)
Greetings, Rune Hunters. We would like to inform you about the events that will take place after May. 14 (Thu). Please see below for more details. List of Upcoming Events 1. Wonderland Event 2. Total Playtime Event 3. S…
Event1 change - UNDECEMBER: The Forge
May. 14 Update
Greetings, Rune Hunters. Our next update will take place on May. 14 (Thu). Please see below for more details. ※ The information may change when the update takes place. ※ All screenshots were taken on a test server and d…
Event7 changesServerGameplay - UNDECEMBER: The Forge
[Completed] May. 14 Scheduled Maintenance
Greetings, Rune Hunters. We would like to inform you that UNDECEMBER will undergo scheduled maintenance on May. 14 (Thu) to provide even more reliable game services. Please see below for more details on the maintenance…
Patch notes1 changeGameplay - UNDECEMBER: The Forge
May.14 (Thu) Advance Notice of Darkness Energy Removal
Greetings, Rune Hunters. As previously announced, on the update of May 14, 2026 (Thu), [Darkness Energy] and related items will be removed. Please refer to the details below. ※ The information may change when the update…
Store1 change - UNDECEMBER: The Forge
Advance Notice on Upcoming Changes with May.14 Update
Greetings, Rune Hunters. There will be various changes coming into effect with the new update that is taking place on May.14(Thu). Among them, advance notice is provided regarding the reset contents, the end of Season […
Event1 change
