The Forgotten Hall is a game mode unlocked after completing the Adventure Mission Fleeting Lights.
Location[]
Forgotten Hall
Overview[]
The Forgotten Hall involves a number of stages with increasing difficulties. Defeating all enemies in each stage of the Forgotten Hall will reward the player with EXP materials, Credits and Lucent Afterglow. In addition, extra rewards can be obtained by fulfilling specific bonus conditions — clearing the stage in a set amount of cycles and limiting the amount of characters downed in the stage. Equilibrium Levels do not affect the difficulty or rewards in any of the stages.
Forgotten Hall contains two types of stages:
- Memory; Jarilo-VI's "The Last Vestiges of the Towering Citadel" which contains 15 stages, and the Xianzhou Alliance's "The Voyage of Navis Astriger", containing 6 stages.
- Memory of Chaos, unlocked after "The Last Vestiges of the Towering Citadel" is completed.
- All stages must be completed in order.
While in the Forgotten Hall, with the following actions temporarily disabled:
- Changing team setup
- Leveling up or ascending characters
- Changing, leveling up, or ascending Light Cones and Relics
- Using Consumables
All battles taking place in the Forgotten Hall must be won within a certain number of cycles, or the attempt will fail. Memory stages have a maximum of 20 (30 if two Nodes) cycles to clear, while Memory of Chaos stages have a maximum of 30 cycles.
When attempting a stage, the player can restart the attempt should they prefer to. This will return any spent Technique Points in the progress. In the event that the stage has two Nodes, the first Node's progress is saved.
The Last Vestiges of the Towering Citadel[]
This is the first mode unlocked in the Forgotten Hall.
In the first four stages, the player will battle one enemy group with a single party of their own. Starting from stage 5, players will need to fight two enemy groups, and from stage 11 onwards, the player must provide two teams, as the enemies are now split into Nodes. Subsequently, the cycle timer increases from 20 to 30.
Once this mode is cleared, both the Voyage of Navis Astringer and Memory of Chaos become available to the player.
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The Voyage of Navis Astringer is a special mode unlocked after completing "The Last Vestiges of the Towering Citadel". It can be considered a one-time variant of the Memory of Chaos, as there are six stages with significantly increased scaling.
Memory of Chaos[]
Memory of Chaos is a special mode unlocked after completing "The Last Vestiges of the Towering Citadel". There are 12 stages in total. This mode is generally updated once every update with varying enemies placed in them.
The first five stages in each Memory of Chaos is repeated again for the subsequent five stages (with higher stats). The last two stages in the Memory of Chaos are more unique with different enemies and formations.
Each Memory of Chaos iteration has its own Memory Turbulence, and the rewards are refreshed every period.
Other Languages[]
| Language | Official Name |
|---|---|
| English | Forgotten Hall |
| Chinese (Simplified) | 忘却之庭 |
| Chinese (Traditional) | 忘卻之庭 |
| Japanese | 忘却の庭 |
| Korean | 망각의 정원 |
| Spanish | Salón olvidado |
| French | Salle oubliée |
| Russian | Зал забвения |
| Thai | Forgotten Hall |
| Vietnamese | Sảnh Đường Lãng Quên |
| German | Vergessene Halle |
| Indonesian | Forgotten Hall |
| Portuguese | Salão Esquecido |
Change History[]
- Added

Jade Feather rewards in Memory of Chaos Stage 7 to 10. - Added Stage 11 and 12 in Memory of Chaos.
- Added functions:
- The Team Setup from the previous stage will be carried over by default.
- Added the team switching and one-click clear buttons in Team Setup.
- Added the Quick Unlock function in Memory of Chaos (no more than the first 7 stages).
- Added functions:
- Added the Team Setup Memory function.
- Added the Restart Challenge function in battle.
- Starting from Version 1.5 stages, enemies in Memory of Chaos now applied a new stats formula, resulting in higher HP and lower ATK than the normal formula's stats at the same Level.
- Memory: The Voyage of Navis Astriger was added.
- Forgotten Hall was released.
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