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UNDECEMBER
Action-packed scene from UNDECEMBER, featuring a character amidst a swarm of enemies in a dark, cavernous environment. Intense combat displayed.
An action shot from UNDECEMBER shows a character using a powerful attack, surrounded by many dark monsters and explosions.
A mysterious figure in a hooded robe stands in a dark, flooded chamber with swords. Likely a scene from the game UNDECEMBER.
Action scene from UNDECEMBER. A warrior in a dark setting fights enemies with fiery effects, showcasing a dynamic battle.

UNDECEMBER is a hack-and-slash fantasy game where you build the ultimate hero. Combine your skills with the all-powerful Link Runes to create builds never seen before. 
In a time when the 12 gods ruled the land of Traum, all beings lived peacefully. Then one day, a 13th being is created: the evil god Serpens. Chaos erupts on Traum and now new heroes are needed. 
UNDECEMBER provides unrestricted freedom to create the character build you prefer. There are no classes nor are there any restrictions to weapons and armor. Simply create strength, intelligence, and agility builds as you desire. Only your imagination limits the kind of character you want.
Loot enemies and complete quests to collect Skill and Link Runes which will enhance your character build even further. You can also upgrade your Rune levels by collecting and farming materials. 
Advance through the chapters of UNDECEMBER to thwart the machinations of Serpens. After completing the main story, raid the endless Chaos Dungeon for more enemies and rewards. Gather up to eight players to complete a Boss raid, or create a Guild with up to 50 members to gain blessings. Your fate is yours to choose in this epic fantasy RPG.

This game is free to play, and offers additional paid content

Packs and additional content for UNDECEMBER

Patch Notes

  • 3/12/26 (Mar. 12 Server Patch)
  • 12/29/25 (Dec. 29 Server Patch)
  • 12/23/25 (Dec. 23 Server Patch)
  • 12/4/25 (Dec.4 Server Patch)
  • 12/3/25 (Dec.3 Server Patch)
  • 11/28/25 (Nov. 28 Data Patch)
  • 11/27/25 (Nov. 27 (Thu) Server Patch)
  • 11/14/25 (Nov. 14 Server Patch)
  • 11/13/25 ([Completed] Nov. 13 Server Patch)
  • 11/6/25 (Nov. 6 Server Patch)
  • 11/5/25 (Nov. 6 Server Patch)
  • 10/2/25 (Oct. 2 Server Patch)
  • 9/16/25 (Sept. 16 Server Patch)
  • 9/12/25 (Sept. 12 Server Patch)
  • 9/11/25 (Sept. 11 Server Patch)
  • 8/14/25 (Aug. 14 Server Patch)
  • 7/3/25 (Jul. 3 Server Patch)
  • 6/19/25 (Jun. 19 Server Patch)
  • 5/27/25 (May. 27 Server Patch)
  • 5/15/25 (May. 15 Server Patch)
  • 5/15/25 (May. 15 Server Patch)
  • 5/9/25 (May.09(Fri) Server Patch)
  • 5/8/25 (May. 8 Server Patch)
  • 2/6/25 (Feb. 6 Server Patch (2nd) (Added on Feb. 6 18:00 (UTC+9)))
  • 2/6/25 (Feb. 6 Server Patch)
  • 12/19/24 (Dec. 19 Server Patch)
  • 11/13/24 (Nov. 14 Server Patch)
  • 11/11/24 (Nov. 11 Server Patch)
  • 9/12/24 (Sept. 12 Server Patch)
  • 7/20/24 (Jul. 20 Server Patch)
  • 7/19/24 (Jul. 19 Server Patch)
  • 6/14/24 (Jun. 14 Server Patch)
  • 6/13/24 (Jun. 13 Server Patch)
  • 6/10/24 (Jun. 10 Server Patch)
  • 6/7/24 (Jun. 7 Server Patch)
  • 5/29/24 (May. 29 Server Patch)
  • 5/28/24 (May. 28 Server Patch)
  • 5/10/24 (May. 10 Server Patch)
  • 5/9/24 (May. 9 Server Patch)
  • 5/7/24 (May. 7 Server Patch)
  • 5/3/24 (May. 3 Server Patch (Edited on May. 3 17:11 (UTC+9)))
  • 5/2/24 (May. 2 Server Patch)
  • 4/12/24 (Apr. 12 Server Patch)
  • 4/3/24 (Apr. 3 Server Patch)
  • 3/28/24 (Mar. 28 Server Patch)
  • 3/4/24 (Mar. 4 Server Patch)
  • 2/16/24 (Feb. 16 Server Patch)
  • 2/15/24 (Feb. 15 Server Patch (2nd))
  • 2/15/24 (Feb. 15 Server Patch)
  • 2/1/24 (Feb. 1 Server Patch)
  • 1/26/24 (Jan. 26 Server Patch)
  • 1/23/24 (Jan. 23 Server Patch)
  • 1/19/24 (Jan. 19 Server Patch)
  • 1/18/24 (Jan. 18 Server Patch)
  • 1/16/24 (Jan. 16 Server Patch)
  • 1/11/24 (Jan. 11 Server Patch)
  • 12/28/23 (Dec. 28 Server Patch)
  • 12/27/23 (Dec. 27 Server Patch)
  • 12/22/23 (Dec. 22 Server Patch (Edited on Dec. 27 13:15 (UTC+9)))
  • 12/12/23 (Dec. 12 Server Patch)
  • 12/9/23 (Dec. 9 Server Patch)
  • 12/8/23 (Dec. 8 Server Patch)
  • 11/10/23 (Nov. 10 Server Patch)
  • 11/3/23 (Nov. 3 Server Patch)
  • 10/26/23 (Oct. 26 Server Patch)
  • 10/12/23 (Oct. 12 Server Patch (2nd))
  • 10/12/23 (Oct. 12 Server Patch)
  • 10/4/23 (Oct. 4 Server Patch (2nd))
  • 10/4/23 (Oct. 4 Server Patch)
  • 9/20/23 (Sept. 21 Server Patch (Added on SepT. 21 12:20 (UTC+9)))
  • 9/18/23 (Sept. 18 Server Patch)
  • 9/15/23 (Sept. 15 2nd Server Patch (Added on Sept.15 20:58 (UTC+9)))
  • 9/15/23 (Sept. 15 Server Patch)
  • 9/12/23 (Sep. 12 Server Patch)
  • 9/11/23 (Sep. 12 Server Patch)
  • 9/2/23 (Sep. 2 Server Patch)
  • 9/1/23 (Sep. 1 Server Patch)
  • 8/31/23 ([Completed] Aug. 31 Emergency Maintenance)
  • 8/7/23 (Aug. 7 Server Patch )
  • 7/26/23 (Jul. 27 Data Patch)
  • 7/25/23 (Jul. 25 Data Patch)
  • 7/24/23 (Jul. 24 Server Patch)
  • 7/4/23 (Jul. 6 Update (Jul. 6 12:59 (UTC+9) Edited))
  • 6/23/23 ([Completed] Jun. 23 Temporary Maintenance)
  • 6/22/23 (Jun. 22 Server / Data Patch)
  • 6/20/23 (Jun. 22 Update (Jun. 23 16:35 UTC+9 Edited))
  • 6/2/23 (Jun. 2 Server Patch)
  • 6/1/23 (Jun. 1 Server Patch)
  • 5/19/23 (May. 19 Data Patch)
  • 5/12/23 (May. 12 Server Patch (05/19 14:13 (UTC+9) Edited))
  • 5/11/23 (May. 11 Server Patch)
  • 5/10/23 (May. 11 Update (May. 16 19:30 (UTC+9) Added) )
  • 5/3/23 (May. 4 Update (May. 11 15:50 (UTC+9) Added))
  • 4/28/23 ([Completed] Apr. 28 Temporary Maintenance)
  • 4/19/23 ([Completed] Apr. 20 Emergency Maintenance)
  • 4/6/23 (Apr. 6 Server Patch)
  • 4/5/23 (Apr. 5 Server Patch)
  • 3/20/23 (Mar. 20 Server Patch)
  • 3/14/23 (Mar. 15 Server Patch)
  • 3/14/23 (Mar. 14 Server Patch)

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  • Technical information

  • Official website
  • Categories : Action, Adventure, Role-Playing, Hack & Slash
  • Editor : LINE Games Corporation
  • Developer : Needs Games
  • Mode(s) : Solo, Multiplayer, Co-op
  • Release date : October 11, 2022
  • Latest patch: 3/12/26
  • System Requirements
    • Recommended
    • CPU : Core i5-6600k / Ryzen 5 1600
    • RAM : 16 GB
    • GPU : GeForce GTX 1060 / Radeon RX 580
  • Age Rating
  • PEGI 16
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