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Hollow Knight: Silksong
All 4 Simple Key Locations and Where to Use
☆ Walkthrough in Progress: Bookmark for Updates!
★ Best Crest Builds | Best Tools
☆ Full Interactive Map of Pharloom!
★ Mask Shards | Spool Fragments | Abilities
☆ Boss Guides: The Unravelled | First Sinner
★ Wishes: Broodfeast | The Lost Fleas
There are 4 Simple Keys in Hollow Knight: Silksong that you can use to unlock different doors and cages. See the locations of all 4 locked doors to use the Simple Key on in this guide.
List of Contents
All 4 Simple Key Locations
There are a total of 4 Simple Keys to find in Hollow Knight: Silksong. Two of which can be purchased from merchant NPCs while the other two can be picked up in a specific location.
- Bone Bottom, Moss Grotto: Purchase from Pebb for 500 Rosaries.
- Songclave, Choral Chambers: Purchase from Jubilana for 650 Rosaries.
- Sinner's Road: Obtain from the Roachkeeper enemy on top of Sinner's Road
- Sands of Karak: Obtain from the sitting corpse on the rightmost bench.
Purchase from Pebb in Bone Bottom
A Simple Key can be purchased from Pebb's Shop in Bone Bottom. This will cost you 500 Rosaries, so we suggest farming them to get it. Do note that you can only purchase it once.
Purchase from Jubilana in Songclave
Another purchasable Simple Key can be purchased from Jubilana in Songclave, which is at the top right area of the Choral Chambers. This costs 650 Rosaries, and it can only be obtained after Wandering Merchants has been completed.
Choral Chambers 100% Map Guide
Dropped by an Enemy in Sinner's Road
An enemy (Roachkeeper) at the top of Sinner's Road drops a Simple Key once you defeat it. Be wary while exploring the area, as you will have to avoid spikes and stick to walls to get to the area.
Found by the Bench in Sands of Karak
A sitting corpse on a bench in Sands of Karak has a Simple Key that players can get. There's no other specific requirements to get the key, so make sure to grab it while you're nearby.
Where to Use the Simple Key
The Simple Keys that you obtain can be used to unlock 4 locked doors in Pharloom.
Each key can be used in any of these locked doors below:
- Bone Bottom, Mosshome: At the area that connects between Mosshome and Wormways.
- Deep Docks: At the bottom-right area below the room with the Bench and NPC merchant.
- Sinner's Road: At the bottom-part of the central vertical room.
- High Halls: At the platform with the rosary sign west of the Bench area.
Locked Gate Above Bone Bottom
- Go to the Left of Mosshome
- Use the Hanging Cages to Reach the Other Side
- Go Past the Acid-Spitting Bug
- Use the Key on the Locked Door
1. Go to the Left of Mosshome
Go through Mosshome and drop down to the opening on the floor to the left-most part of the area. Then, head left to the next room.
2. Use the Hanging Cages to Reach the Other Side
Keep heading left to find hanging metal cages that you can step on. Use Swift Step to reach them and get to the other side.
3. Go Past the Acid-Spitting Bug
Enter the area to find a Craggler, large bug that spits out acid. Avoid attacking it for now and instead hide underneath the platforms. Use Swift Step and keep heading left until you reach the next room.
4. Use the Key on the Locked Door
Once you get to the Locked Old Door, you can use the Simple Key to unlock a new major area called Wormways. Do note that you can only use a Simple Key once, as it will be consumed afterwards.
Pharloom Full Map and All Locations
Locked Door in Deep Docks
| Overworld View | Map Location |
|---|---|
 |
 |
There is a locked door in Deep Docks that requires a Simple Key. Using this item will unlock a large area part of Deep Docks that you can explore. Do note that using the Simple Key will consume it, so you can only use it once.
Area Can Be Accessed via Far Fields
You can access the location as it is connected to a hidden area in Far Fields. We recommend using the Simple Key in the door above Bone Bottom instead, then open this door once you get another Simple Key.
Free the Green Prince in Sinner's Road
You can use a Simple Key to free the Green Prince in Sinner's Road. Use the one dropped by the enemy in the same area.
Rosary Storage Door in the High Halls
The final door where you can use a Simple Key can be found in the High Halls, just west from the bench. It will lead to the Rosary Storage, which is where you can get the Rosary Cannon.
Hollow Knight: Silksong Related Guides
All Item Guides
Author
All 4 Simple Key Locations and Where to Use
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I found another Simple Key in possession of Jubilana. Spoilers. In the Capital, once you activate the First Shrine bell, it activates a settlement to soon appear, along with a wish board with a wish for locating the traveling merchant Jubilana, and once you save her, she sells a Tool "Ascendant's Grip" which allows you to cling to walls, possibly indefinitely, a Mask Shard, a Simple Key, and a Spool Extender.