Unstable Dungeon
In this mode, engage in 1-on-1 battles against bosses you've faced in the story in either Sung Jinwoo or Hunter mode.
[How to Access the Unstable Dungeon]
- [Menu] ▶ [Game Modes] ▶ [Unstable Dungeon]
- [Lobby] ▶ [Compass] ▶ [Unstable Dungeon]
- Available after clearing Chapter 5.

[Unstable Dungeon Guide]
- The Unstable Dungeon can be played in Sung Jinwoo Mode or Hunter Mode.
- Dungeon Entry Keys are deducted each time you clear a dungeon, and you can view how many keys you have remaining.
- Dungeon Entry Keys are replenished for free every day and additional keys can be purchased at the shop.
*If you purchase additional keys from the shop or obtain extra keys through events while already having the max number of keys, you can hold more than the max limit.
*You can only obtain free keys until you reach the free key limit.

[Conquest Missions]
- You can obtain rewards based on the number of times you cleared the Unstable Dungeon.
- When rewards are reset, the rewards may change depending on your Battle Tier Level.

[Unstable Dungeon Guide]
- The details of the Unstable Dungeon will be displayed in the menu.
- Reviewing the boss details for the tier allows you to plan a strategic combat formation.
- You can obtain additional rewards by clearing the Battle Missions.
- The rewards you can obtain by clearing the dungeon are listed as well.
- Rewards for clearing the Unstable Dungeon include artifacts and material items.
- You'll obtain the rewards and the number of keys you have will be reduced only when you clear it.
- Tiers where all Battle Missions are cleared can be swept.
- Bosses are rotated weekly.

[Reward Settings Guide]
- Select a hunter to view their recommended artifact set and stat details.
- You can select your desired artifact type from a list of those available and set it as your target.
- By setting your preferred lock and salvage filters in the Lock/Salvage settings, artifacts will be automatically managed based on those conditions.

[Proof of the Strong Guide]
- Unlocks once you reach the Challenge difficulty tier.
- Choose which penalty tier to apply.
Once a penalty is selected, previous tiers' penalties also apply all at once.
(EX. Choosing to apply the Tier 8 penalty applied all penalties from Tiers 1-8.)
- The recommended Total Power changes depending on the number of Proof tiers selected.
- Clearing a stage with Proof of the Strong applied
provides bonus rewards based on the applied Proof Level.
*This guide was written based on the test version of the game, and the content may change in the future.