LINE Games
Undecember season countdown — current and next dates
Undecember season countdown — current and next dates
Total Seasons
6
Avg. Duration
111 days
Steam online
699
7d peak
45.9K
Current season
Undecember Season 11: The Forge launches following the conclusion of Season 10, bringing a leaderboard reset and new seasonal content with a fresh economy and ladder race.
Started
May 14, 2026
Running for
Next season in
Season ended
Updated 06:00 PM
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…
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. {STEAM_CLAN_IMAGE}/41639947/e7bc4a197fb4f524c495…
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. {STEAM_CLAN_IMAGE}/41639947/e7bc4a197fb4f524c495…
No end date has been officially announced for the current Undecember season yet.
The next Undecember season is estimated to start around September 14, 2026. This is based on historical average season lengths and is not yet officially confirmed.
Yes — the date shown for the Undecember season is officially confirmed by the developer.
Undecember seasons typically last around 123 days, based on the average of recent completed seasons.
Season 11: The Forge
Undecember Season 11: The Forge launches following the conclusion of Season 10, bringing a leaderboard reset and new seasonal content with a fresh economy and ladder race.
New Age
The current Undecember season focuses on a large-scale skill overhaul, Season Mode progression through Abyss Gate New Age, and season-specific rewards and passes.
Abyss Gate
Abyss Gate centered on descending through Chaos Statue-linked dungeon depths with progressively stronger monsters and season-exclusive progression.
Starwalker
Season Starwalker added a new Season Mode cycle with its own gear, pass rewards, raid schedule, and season-limited progression systems.
Trials of Power
This season followed Re:Birth, resetting Void Rift progression and adding a new season-focused competitive cycle built around Trials of Power content.
