Warning: highly likely to contain major spoilers about the game ending and the “Silk and Soul” quest.
If you don’t want to know the details of the Silksong ending yet, it’s best to stop reading now.

After watching the credits for the first time, you might think the game is over — but there’s actually more. Silksong has a hidden Act 3 that reveals the true story conclusion. Triggering it is not as simple as defeating a boss or solving a puzzle: the requirements are quite vague and involve a series of missions and special objects. Here is a structured guide to start Act 3 and complete the “Silk and Soul” quest.

General Requirements to Unlock Act 3

The exact details have not been fully confirmed, but player consensus suggests the following combination of steps is usually required:

• Complete most of the requests (request board) in areas like Bone Bottom, Bellhart, and First Shrine.
• Move the flea caravan to Pale Lake in the Rotted Channel area.
• Learn the Three-Part Song by finding three melodies: Vault Keeper, Architect, and Conductor.
• After that, the “Silk and Soul” mission will appear on the Bellhart request board.

In some cases, the above steps are not enough. Completing the Crawbug Clearing mission in Greymoor seems to be an additional trigger for Silk and Soul to appear.

If it still doesn’t appear, use the following list as a checklist of missions to complete:

• Berry Picking (Mosshome)
• The Lost Fleas (The Marrow)
• Flexile Spines (Far Fields)
• Bugs of Pharloom (Greymoor)
• Pinmaster’s Oil (Bellhart)
• Crawbug Clearing (Greymoor)
• Rite of Rebirth (Bilewater / Shellwood)
• Infestation Operation (Greymoor)
• Roach Guts (Sinner’s Road)
• Great Taste of Pharloom (Choral Chambers)

Starting and Completing the “Silk and Soul” Quest

Once the requirements are met, the Silk and Soul mission will appear on the Bellhart request board. Here is an outline of the steps:

1. Meet the Caretaker at First Shrine.
   He will assign you to find four soul items/related objects.
2. The four items to collect:

• Maiden’s Soul — from the Chapel Girl in Bone Bottom (west of the area, or below in Moss Grotto).
• Hermit’s Soul — from the Hermit under Bellhart Bellway (access via secret wall on the lowest floor).
• Seeker’s Soul — inside the hut after defeating Groal the Great in Bilewater.
• Snare Setter — in Weavenest Atla (right of Moss Grotto). Use Needolin at the entrance, climb to the plant area, wall-jump up, and find the secret hole in the ceiling.

3. Return to the Caretaker.
   After handing over the four items, he prepares a trap for Grandmother Silk.
4. Fight Grandmother Silk.
   Defeat the final boss. At the closing moment, instead of binding her, use Needolin.
   If done correctly, when the save file is reloaded you will start Act 3.

Practical Tips & Notes

• Because the Act 3 requirements are not explicit, complete many requests and side missions.
• The request board in Bellhart is key — always check back after finishing missions.
• If the quest hasn’t appeared, focus on missions in Greymoor (especially Crawbug Clearing).
• Use Needolin at the final moment of the Grandmother Silk fight. If you choose the wrong action, Act 3 will not unlock.

Act 3 of Silksong is a secret ending that demands exploration, completing side missions, collecting special items, and making the right decision at the end.
Combine completing the request board, missions in Greymoor, gather the four requested souls, and use Needolin at the crucial moment.
If all is done correctly, the next save file will unlock Act 3 — the true conclusion of Silksong.