In Hollow Knight: Silksong, Simple Keys are key items used to unlock locked doors that open new areas and grant access to rare items. There are four Simple Keys in the game, each found in different locations, and they can unlock multiple locked doors around the map. Here is a detailed overview:
Simple Key Locations:
- Bone Bottom — Purchase from Pebb's shop for 500 Rosaries.
- Sinner's Road — Obtained by defeating the Roachkeeper at the top of the tower.
- Sands of Karak — Found on a corpse sitting on the eastern bench.
- Songclave (Choral Chambers) — Purchase from Jubilana after completing The Wandering Merchant quest for 650 Rosaries.
Locked Door Locations and What They Unlock:
- Bone Bottom — Unlocks a shortcut through the Wormways leading to the Chapel of the Wanderer.
- Deep Docks — Unlocks a shortcut to Far Fields and access to the Flintslate tool for imbuing the Needle with fire.
- Sinner's Road — Opens the door imprisoning the Green Prince to begin his questline.
- High Halls — Accesses a rosary vault filled with rosary chests, including a Pale Rosary Necklace and hidden rosary strings, plus activatable contraptions like the Rosary Cannon.
Using these keys strategically can significantly ease progression through the game by opening shortcuts and granting valuable items.
