UNDECEMBER: 4th Anniversary

by Needs Games·published by LINE Games Corporation

Steam · Mixed

Steam Facts

Data current as of Apr 27, 2026. We re-crawl reviews and metadata every 14 days.

Steam Sentiment54

Mixed

Roughly half of players recommend it.

Quick Stats

Reviews

4,950en

20,503 total (all languages)

Current as of Apr 27, 2026

Released

Oct 11, 2022

Price

Free

Velocity

3.6/day

Slowing

Metadata current as of May 3, 2026 · Source: Steam

Market Reach

Free-to-play — revenue estimates don't apply.

About

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!

Sentiment History

Sentiment over time

Playtime Sentiment

Sentiment by time invested

· 4,855 post-launch reviews

18%817 rev

<2h

33%323 rev

2-10h

64%1,358 rev

10-50h

64%1,323 rev

50-200h

61%703 rev

200h+

61%331 rev

Players who invest more time rate this game significantly higher (+28pts) — a strong signal of a slow-burn experience that rewards patience.

Competitive Benchmark

Compared to 335 similar games in the Action genre released in 2022.

Sentiment vs. similar gamesBottom 9%

Popularity vs. similar gamesTop 3%

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