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Integrated Lookback: Back to Castle

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Notice

This event has been released in the Global server. As such, the contents of this page and the related subpages have been archived.

Integrated Lookback: Back to Castle
EN
CN
EN Integrated Lookback Back to Castle banner.png
CN Integrated Lookback Back to Castle banner.png
Release
CN date
2025/06/05 – 2025/06/19
Global date
2025/10/14 – 2025/10/28

Integrated Lookback: Back to Castle is the second Integrated Lookback event in Arknights that adds new content to Phantom & Crimson Solitaire, the second Integrated Strategies theme.

Crimson Solitaire updates[edit]

The difficulty level is now changed to one used in later I.S. themes, with Calamity Faceoff removed.

  • Castle Sightseeing to Formal Investigation 3 will be available for players who haven't yet completed a Formal Investigation run.
  • Castle Sightseeing to Formal Investigation 6 will be available for players who have completed a Formal Investigation run.
  • Castle Sightseeing to Formal Investigation 9 will be available for players who have completed a Calamity Faceoff run.

"Strategist" Points[edit]

More "Strategist" Points can be obtained by completing general tasks and special tasks that must be done in Phantom & Crimson Solitaire to raise the milestone progress which gives out rewards once at certain Strategist Point thresholds.

For every 150 "Strategist" Point "Strategist" Point collected, 1 Rhodes Island Supplies Rhodes Island Supplies will be given to the player, up to a limit of 35 Rhodes Island Supplies Rhodes Island Supplies.

General[edit]

"Strategist" Point "Strategist" Point reward 150 200 250 300
Mission Total req.

Spend a total of x Sanity 600 1200 1800

Spend x Credits in the Credit Store 800 1600 2400

Send x Clues to friends 4 8 12

Clear any stage x times 15 30 45 60

Defeat a total of x enemies 500 1000 2000 3000

Perform Recruitment x times 10 20 40

Assign x Operators to restore Morale in the Dormitory 60 120 200

Complete x orders 30 60 100

During this mission period, conduct x Clue Exchange(s) 1 2 3

Interact with Operators in the Base to increase their trust x times 60 120 200

Special[edit]

"Strategist" Point "Strategist" Point reward 100 150 200
Mission Total req.

In Integrated Strategies: Phantom & Crimson Solitaire, obtain a total of x plays 5 10

Reach x ending(s) in Regular Operations on [Formal Investigation] difficulty in Integrated Strategies: Phantom & Crimson Solitaire 1 2 3

Recruit a total of x Operators in Integrated Strategies 10 30 50

Clear a total of x floors in Integrated Strategies 5 10 15

Clear a total of x Emergency Ops nodes in Integrated Strategies 5 10

Clear a total of x stages while earning a Perfect in Integrated Strategies 10 20 30

Obtain a total of x collectibles in Integrated Strategies 30

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