UNDECEMBER: 4th Anniversary
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!
- Release Date:10/12/2022
- Franchise:LINE Games Corporation
- Developer:Needs Games
- Publishers:
- Last Updated:1/30/2026
- Steam App Id:1549250
UNDECEMBER: 4th Anniversary
- Windows
- Mac
- Linux
- Steam Deck (Playable)
Steam Charts, Stats, and Live Player Count
At the moment, UNDECEMBER: 4th Anniversary has 1,372 concurrent players online and in-game. This is 75% lower than its previous all-time peak of 5,507 players achieved on 6/4/2023.
Review History Chart
Track historical review trends and overall ratings for UNDECEMBER: 4th Anniversary. It has received a total of 20,362 reviews on the Steam store and achieved a Player Score of 52 (Mixed).
Community Hub Members & Followers Chart
Explore the cumulative breakdown of Steam community hub members for UNDECEMBER: 4th Anniversary and its growth over time. It currently has 84,670 followers on its community page.
About UNDECEMBER: 4th Anniversary
UNDECEMBER: 4th Anniversary is an Adventure, Action, RPG, and Free to Play game developed by Needs Games. On 10/12/2022, it was released on the Steam Store by LINE Games Corporation, and LINE Games.
Players have rated UNDECEMBER: 4th Anniversary as "Mixed" out of 20,362 total reviews on the Steam Store. These are split between 10,686 positive reviews and 9,676 negative reviews — an overall 52% positive review rating.
It can be played and ran on Windows systems. At the moment, it is possible to play UNDECEMBER: 4th Anniversary on the Steam Deck but some functionaliy may not be fully supported.
It also supports 11 languanges in-game including English, Japanese, Chinese (Traditional), Chinese (Simplified), and French. Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, UNDECEMBER: 4th Anniversary supports the following features:
- Partial Controller Support
- Full controller support
- Single-player
- Co-op
- PvP
- Multi-player
- Online Co-op
- Cross-Platform Multiplayer
- Online PvP
- In-App Purchases
From the Steam community, UNDECEMBER: 4th Anniversary has been tagged with the following user tags:
- PvP
- Character Customization
- Loot
- Hack and Slash
- Third Person
- Multiplayer
- Isometric
- Fantasy
- Free to Play
- Realistic
- RPG
- Co-op
- Action RPG
- Dark Fantasy
- PvE
- Top-Down
- Cinematic
- Online Co-Op
- Action
- Singleplayer
Media & Sceenshots
Watch the featured video for UNDECEMBER: 4th Anniversary and see the latest screenshots from the Steam Store.
Supported Languages
UNDECEMBER: 4th Anniversary is available in 11 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| Japanese | Yes | No | Yes |
| Chinese (Traditional) | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
| French | Yes | No | Yes |
| German | Yes | No | Yes |
| Portuguese-Brazil | Yes | No | Yes |
| Spanish (Spain) | Yes | No | Yes |
| Thai | Yes | No | Yes |
| Russian | Yes | No | Yes |
Frequently Asked Questions
Soures & References
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UNDECEMBER: 4th Anniversary data has been sourced from:
- Valve Corporation. (2026, January 30). UNDECEMBER: 4th Anniversary on Steam. Steam Store. https://store.steampowered.com/app/1549250
- Valve Corporation. (2026, January 30). UNDECEMBER: 4th Anniversary. Steam Community Hub. https://steamcommunity.com/app/1549250
- Needs Games. (2023, July 9). UNDECEMBER: 4th Anniversary. UNDECEMBER: 4th Anniversary. https://undecember.line.games/en