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:5/12/2026
- 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 243 concurrent players online and in-game. This is 96% 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 20,512 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 84,868 followers on its community page.
About UNDECEMBER: 4th Anniversary
UNDECEMBER: 4th Anniversary is an Action, Adventure, 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 20,512 total reviews on the Steam Store. These are split between 10,771 positive reviews and 9,741 negative reviews — an overall 53% positive review rating.
It is available for gamers to download and play completely for free.
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:
- PvP
- Multi-player
- Single-player
- Full controller support
- Online Co-op
- In-App Purchases
- Co-op
- Online PvP
- Cross-Platform Multiplayer
- Partial Controller Support
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
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in realtime to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
UNDECEMBER: 4th Anniversary data has been sourced from:
- Valve Corporation. (2026, May 12). UNDECEMBER: 4th Anniversary on Steam. Steam Store. https://store.steampowered.com/app/1549250
- Valve Corporation. (2026, May 12). 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