We Love It's Guide to…
Play a classless Rune Hunter, combining skill and link runes to fight monsters, collect gear, and shape a dark-fantasy build.
Released 11 Oct 2022
Combine Skill Runes
Build Without Classes
Challenge Chaos Dungeons
UNDECEMBER is a Hack & Slash Action RPG in which players are able to surpass the conventional limits of skills by endlessly combining variety of Skill and Link Runes. Become a Rune Hunter and experience the joy of farming and growth!
Developed by Needs Games · Published by LINE Games Corporation









In a dark-fantasy world shaped by twelve divine beings, you play as a Rune Hunter confronting the threat of Evil God Serpens. The main story unfolds across a series of acts.
Fight groups of enemies in hack-and-slash combat, collect equipment and materials, and develop a character without choosing a fixed class. Skill Runes provide abilities, while Link Runes modify them; combining the two lets you shape different combat styles.
Progress by upgrading runes and gear and allocating passive bonuses through the Zodiac system. After the story, you can tackle Chaos Dungeons, join boss raids for up to eight players, compete in free-for-all PvP, or join a guild.
Players who enjoy the game often praise the freedom to experiment with skill and link rune combinations, and the character builds those combinations enable. Some also highlight fast combat against large groups of enemies, visual effects, and the campaign. These positives sit alongside frequent criticism of the game's storage limits, monetization, and later progression.
| Platforms | Windows |
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| Age ratings |
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| Players | 1–8 |
| Play modes |
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| Other modes |
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| Multiplayer | The store information states single-player, online co-op, online PvP, and cross-platform multiplayer. Explicit multiplayer modes named are Boss Raid with up to 8 players, Crusade of Glory as free-for-all PvP, and Guilds with up to 50 members. Reviews indicate the main story is largely solo, with some co-op party play and raid/group endgame content. |
| Multiplayer & mods | No mod support or multiplayer mod features are mentioned. |
| Controller support | PlayStation, Xbox |
| Controller required | No |
| DRM / EULA |
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| Content notices |
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| AI disclosure | During development, AI-based tools may be used in a limited capacity to assist with the creation of certain content.All such outputs are subject to review and revision through our internal production pipeline, and the final results fully reflect the creativity and intent of our art and development teams. |
| AI disclosure categories |
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| Website | Official website |