Undecember: The Forge

4.2
52.7K reviews
Content rating
Rated for 16+
1M+
Downloads
Content rating
Rated for 16+
Strong Violence
Users Interact, In-Game Purchases (Includes Random Items)
Learn more
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About this game

Various limited-time events will be available alongside the New Season Update!

Don't miss out on event opportunities, including a 7-day Attendance reward granting a brand-new Pet, as well as powerful gear and new Costume rewards available through the Season Celebration Exchange.

《Season Update Highlights》
◈ Tier 15 Gear Option added
◈ Season-exclusive opportunities to obtain higher-tier options
◈ New skills added: "Frost Storm" and "Axe Throw"
◈ New growth content, Card System added
◈ Expansion of advanced and Abyss Gate content
◈ Chaos Dungeon and Black Market reward improvements
◈ Convenience improvements, including Zodiac Presets
◈ Various other content improvements

■ UNCHANGED – Unchanged Values
Immersive storyline and growth through hunting and farming
Fun and excitement, while pursuing the unchanged values of a RPG

■ UNEXPECTED – A Perfect RPG Beyond Expectations
Venture through countless maps with diverse themes
And experience the unexpected thrills of combat

■ UNLIMITED – Limitless Skill Combinations
Surpass the limit by creating thousands of
skill combinations from various Skill and Link Runes

■ UNDEFINED – Freedom of Style
Instead of choosing a class, enjoy building up
your own character based on your combat style

■ UNSTOPPABLE – Endless Contents
From Raids to Guild Battlegrounds!
Test your limits through multiple available contents

Check the latest UNDECEMBER news from the Official Community!
[Brand Site]
https://undecember.line.games/
[FLOOR]
https://ud.floor.line.games
[DIscord]
https://discord.com/invite/Q7syAnHfha
[YouTube]
https://www.youtube.com/channel/UCO1YHH625KZdI66PjAEHDWQ

ⓒ LINE Games Corporation & Needs Games Inc. All Rights Reserved.

■ Minimum Requirements
- OS Android 7.0 (Nougat) RAM 2GB

■ Optional Access
The following access is requested upon use.
You may still continue using the service without the specific feature even if access is declined.
- Photos/Media/Files: Allows attaching files saved in the device when posting at the Official Community.
- External Storage: Required to write game data in the external storage.

[How to Remove Access]
- Android 6.0 or above: Settings > Apps > Select Category > Permissions > Allow or Remove Access
- Lower than Android 6.0: Update the OS to Remove Access or Uninstall the App

■ Information on Paid Contents and Usage
※ Purchasing paid contents will incur additional charges.
- Provider : ⓒ LINE Games Corporation
- Terms of Service and Service Period : Refer to the information provided in-game
(If service period is not shown, the game service end date is to be regarded as the service period)
- Payment amount and method : Refer to the amounts and methods provided for each content in-game
(Billed amount may differ depending on exchange rate and fees when using foreign currency)
- Content provision method : Issued directly to the game account(character) that carried out the purchase
or issued to the Paid Shop Storage in-game
- Information on refunds : Refer to Article 5 of the Terms of Service
- Compensation for damages and handling of complaints : Refer to Articles 11 and 15 of the Terms of Service
- Inquiries : Submitted online through the in-game Support feature

[Developer Contact]
E-mail : game_service@linegames.support
[Business Registration Number]
120-87-89182
[Business Address]
2F, AP Tower, Teheran-ro 218, Gangnam-gu, Seoul, 06221
[Privacy Policy]
https://cs.line.games/policy/store/privacy?companyCd=LINE_GAMES&svcCd=STORE&langCd=en
[Terms of Service]
https://cs.line.games/policy/store/terms?companyCd=LINE_GAMES&svcCd=STORE&langCd=en
Updated on
Jul 6, 2026
Events & offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
49.5K reviews
Chris Mccafferty
January 28, 2025
I won't lie, I'm addicted and I love it. Some things I hate, The UI isn't resizeable, so despite your choice of method to play, still expect to struggle to see. There is embedded autoaim, so if u love range skills, they still rock, but it gets really annoying. Idk, I'm only a few days in. It just needs more settings, this game has insane frikan potential and I'm in love, it just needs more love on the side of more settings so it's better for pc and mobile. ADJUSTED from 4 to 3 stars
23 people found this review helpful
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Chatto
June 26, 2026
Great Arpg with MMO lite. It's like Path of Exile but a little bit not too complicated skills. The game have a weekly update and the story isn't done yet. I had to uninstall it because the lag is unbearable even when you are only soloing Chaos Dungeon, can't imagine when you're in group. If only this game is optimize it will be an awesome game. EDITED: Awesome game!
10 people found this review helpful
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LINE Games
June 10, 2023
Hello, Rune Hunter. We have read through your suggestions and will look into how we can further improve UNDECEMBER. Thank you for taking the time to share your feedback with us. We will continue to work hard to ensure that players can enjoy our game to the fullest! Thank you.
Tarzaan888
June 2, 2026
Im a incredible og childhood 2000s gamer, giving me a dungeon seige 3 slash diablo 2 mix, and it's potential from skill runes and mechanical tech tree is near limitless. it is both free and pay to play. I've gotten 73+ free but im not suggesting dont pay, honestly if this game is takin care of 10 bucks here and there is supportive in my book. 5 stars. on a second note, they should implement a mercenary, 2 inventories, 2 characters, 2 skill trees to work on. with different mercenary selections.
1 person found this review helpful
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What’s new

◈ Tier 15 Gear Option added
◈ Season-exclusive opportunities to obtain higher-tier options
◈ New skills added: "Frost Storm" and "Axe Throw"
◈ New growth content, Card System added
◈ Expansion of advanced and Abyss Gate content
◈ Chaos Dungeon and Black Market reward improvements
◈ Convenience improvements, including Zodiac Presets