UNDECEMBER — next season start dates

UNDECEMBER (언디셈버) is a Korean hack & slash from Needs Games, published by LINE Games. There are no classes: your character is a set of runes. Skill runes slot into link runes, links empower each other, and the whole setup can be swapped at any moment — you don't pick a build at the start, you assemble it as you go. The game runs on seasons, and that's exactly the same kind of event as leagues in Path of Exile: a season wipes progress in seasonal mode, everyone enters the new world at once and from scratch, and everything you earned moves over to Standard. The eleventh season, “The Forge,” ran from May 14. The twelfth season, “The Farside,” begins on September 10, 2026. It brings the “Agony Wave” content, the official release of the card system, a rework of the “Constellation of Time,” and a new “Zodiac” specialization. Plus the new skill runes “Divine Punishment” and “Charged Shot,” five new link runes, and two transcendent runes. The exact start time is the end of maintenance: the server goes down for maintenance on September 9 at 22:00 KST and comes back on September 10 at 12:00 KST. The publisher has already changed the schedule once, so it's worth double-checking right before launch.