Undecember: The Forge

In-app purchases
4.1
52.7K reviews
Content rating
Teen
1M+
Downloads
Content rating
Teen
Violence, Blood
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

4.1
49.5K reviews
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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Savage Gamer
February 19, 2026
I don't give praise to mobile games very lightly. I have to say this is the best. Arp GI have played since Diablo 4, having all of this at my fingertips is great. The graphics are amazing. The combat is fun and the colors are bright. The only gripe I have is with menu navigation. Being absent for controller use, there are so many games that do this correctly. If this had proper controller use with menu navigation, I would give it a 5 star. But for that, I have to knock it down to 3
6 people found this review helpful
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Reece Buckland
December 17, 2022
This should be a 5-star game. This game is by far one of the best, most engaging, and fun mobile games I have ever played. Like Path of Exile on my phone. Except PoE was not pay2win. This is w/o a doubt a micro transaction pit. The game is great. Want to buy an extra storage slot? That'll cost you about 700 gems, which there is nearly no way to make w/o buying them. So you have to buy them. Oh and it's like $20 for 500 gems. So that's a big ripoff. This will eventually kill the game. Too bad....
24 people 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