Forgotten Hall

The Forgotten Hall is a game mode within the Treasures Lightward section of the Interastral Peace Guide. It is unlocked after completing Adventure Mission Fleeting Lights, and can be accessed by speaking with the Messenger.

Location

View map: Parlor Car

Map Location
Forgotten Hall

How to Unlock

Trailblaze Level 21 is required to unlock Adventure Mission Fleeting Lights and "The Last Vestiges of the Towering Citadel".

"The Voyage of Navis Astrigera" is unlocked after completing Trailblaze Mission A Dragon Gallant, Its Ocean Distant in the chapter Topclouded Towerthrust.

Memory of Chaos stages are unlocked after completing "The Last Vestiges of the Towering Citadel".

Overview

Forgotten Hall tests players' ability to quickly clear a diverse range of enemies with a relatively low amount of assistance. It is divided into multiple series of sequential stages with increasing enemy levels.

Battles in this mode typically consist of two-wave battles against a fixed amount of 1-5 enemies per wave, though one-wave and three-wave structures have been documented. Most Forgotten Hall stages are divided into two Nodes, each of which must be challenged by a different team.

Typical enemies include Normal and Elite enemies. Some battles contain a Boss enemy in their final wave; among them, Gepard, Bronya, Svarog, Cocolia, Stellaron Hunter: Kafka, Swarm: True Sting, and Stellaron Hunter: Sam may fight alongside additional enemies, while the others will appear by themselves.

Memory Turbulence

Memory Turbulence is the stage buff supplied for Forgotten Hall stages. Typically, it takes effect at the start of every new Cycle, and can provide effects ranging from extra instances of True DMG, ally buffs and enemy debuffs, and much more.

All stages in a Memory of Chaos series share the same Memory Turbulence, which changes along with the phase. Stages in "The Last Vestiges of the Towering Citadel" and "The Voyage of Navis Astrigera" have unique Memory Turbulences.

Scoring

A fixed number of Cycles is alotted to clear each stage, shared among all battles and all Nodes in the stage, and the Action Value elapsed will be reset to its initial value upon the start of a new wave or battle. A Node must be cleared within the time limit to proceed to either the next Node or score finalization.

After a stage is cleared, up to 3 stars are awarded: two for clearing the stage with at least a certain number of Cycles remaining, and one for having less than a certain amount of downed characters.

Series

The Last Vestiges of the Towering Citadel

A permanently-available series based on Jarilo-VI. Enemy levels range from 32 to 65.

Stages 1 to 5 contain a single Node with one battle. These Stages must be completed within 20 Cycles, and possess the following star targets:

• Win with at least 10 Cycle(s) left
• Win with at least 14 Cycle(s) left
• No more than 1 downed character(s)

Stages 6 to 10 contain a single Node with two battles that can be fought in any order. These Stages must be completed within 20 Cycles, and possess the following star targets:

• Win with at least 8 Cycle(s) left
• Win with at least 12 Cycle(s) left
• No more than 1 downed character(s)

Stages 11 to 15 contain two Nodes that each contain one battle. These Nodes must be completed within 30 Cycles, and possess the following star targets:

• Win with at least 12 Cycle(s) left
• Win with at least 18 Cycle(s) left
• No more than 1 downed character(s)

The Voyage of Navis Astrigera

A permanently-available series based on the Xianzhou Luofu. Enemy levels range from 50 to 90.

All six stages contain two Nodes that each contain one battle. These Nodes must be completed within 20 Cycles, and possess the following star targets:

• Win with at least 6 Cycle(s) left
• Win with at least 12 Cycle(s) left
• Have no downed characters

Memory of Chaos

A significantly harder series that refreshes every 6 weeks, with a similarily variable theme. Enemy levels range from 68 to 95.

All Memory of Chaos stages contain two Nodes that each contain one battle. These Nodes must be completed within 30 Cycles, and possess the following star targets:

• Win with at least 10 Cycle(s) left
• Win with at least 20 Cycle(s) left
• Have no downed characters

Starward Mode

Clear Stage 11 of Forgotten Hall to unlock Starward Mode.
Clearing Stage 12 in Starward Mode requires challenging 3 Nodes.
Clear Stage 11 of Forgotten Hall to unlock Starward Mode.
Clearing Stage 12 in Starward Mode requires challenging 3 Nodes.

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Clear Stage 12 of Starward Mode with 3 stars and 33 or more Cycles remaining to obtain the Prismatic Star and additional new rewards.
Accumulate 36 stars and the Prismatic Star to obtain this period's Forgotten Hall Limited-Time Clearance Medal.
Clear Stage 12 of Starward Mode with 3 stars and 33 or more Cycles remaining to obtain the Prismatic Star and additional new rewards.
Accumulate 36 stars and the Prismatic Star to obtain this period's Forgotten Hall Limited-Time Clearance Medal.

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You can switch back to Regular Mode at any time to challenge Stage 12 of the regular Forgotten Hall and obtain the original rewards.
You can switch back to Regular Mode at any time to challenge Stage 12 of the regular Forgotten Hall and obtain the original rewards.

Starting from Version 4.3, players who clear Stage 11 will unlock Starward Mode. Starward Mode is an alternate version of Stage 12 that adds a third Node, which must be challenged with a third separate team. However, each Node can now be challenged independently and team lineups can be changed separately, similar to the Knight stages in Anomaly Arbitration. The maximum scores for each Node will be kept unless its lineup is changed or its equipment is reused in another Node.

To accommodate the additional Node, the maximum Cycles and cycle-based star targets are 1.5 times the original values, leading to a maximum of 45 Cycles and the following star targets:

• Win with at least 15 Cycle(s) left
• Win with at least 30 Cycle(s) left
• Have no downed characters

Additionally, a Prismatic Star and a limited-time clearance medal can be obtained by clearing with 3 stars and at least 33 Cycles left. Meeting this score requirement will unlock all rewards for the iteration even if the original Stage 12 lineup was not touched.

Nameless Honor Missions

This event added additional "This Period" Nameless Honor missions to the Nameless Honor. The Nameless EXP obtained from these missions do not count towards the weekly experience limit of 8,000 The Nameless EXP.

Missions	The Nameless EXP
Obtain a total of 15 stars from clearing Forgotten Hall stages	1,400

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