Undecember
When has the previous Undecember season started?
The previous Undecember season - Season 12: The Farside - has started Thu, 10 Sep 2026 03:00:00 GMT
When has the previous UD season started?
The previous UD season - Season 12: The Farside - has started Thu, 10 Sep 2026 03:00:00 GMT
When is the previous Undecember season ending?
The official end date of the previous Undecember season has not been announced yet.
When is the previous UD season ending?
The official end date of the previous UD season has not been announced yet.
Next season: To be announced
Not announced yet
When does the next Undecember season start?
The official launch date of the next Undecember season has not been announced yet. It is likely starting To be announced
When does the next UD season start?
The official launch date of the next UD season has not been announced yet. It is likely starting To be announced
If it follows past seasons, expect it around early January 2027.
We'll add it the moment it's announced.
Season rhythm
~3.5 months
per season on average (112 days). Most ran between 94 and 130 days.
3-4 a year
new seasons on average.
Thursday, 12:00 AM
is when most past seasons launched, in your time zone.
Latest news
All news →Recent seasons
Full timeline →- Season 11: The ForgeMay 14 - Sep 9, 2026 · 119 days
- Season 10: New AgeJan 15 - May 14, 2026 · 120 days
- Season 9: Abyss GateSep 4, 2025 - Jan 15, 2026 · 133 days