In Hollow Knight: Silksong, the locked door in the Deep Docks area is an ornate door that sits just beyond a lava gap. To reach and open this door, players need the "Swift Step" ability, which allows a dash-run jump necessary to cross the lava gap. Additionally, opening the door requires one of the game's Simple Keys, which are single-use keys scattered across Pharloom. This door is one of four Simple Key locks in the game. This locked door in Deep Docks is optional and not required for main story progression, so using a Simple Key to open it will not cause the player to softlock their save. To reach the door quickly, players start from the Deep Docks Bellway sign and head right through an enemy rush room, then use Swift Step to jump across the lava to the platform where the door awaits. Using a Simple Key on this door will grant access to whatever lies behind it in the Deep Docks area, possibly including boss fights or items. Summary:
- The door is locked and ornate, located beyond a lava gap in Deep Docks.
- Requires Swift Step ability for the jump.
- Requires one Simple Key to unlock.
- It is optional and doesn't block main story progression.
- The door leads to further Deep Docks content.
This information is supported by multiple recent player guides and discussions as of early September 2025.
