Official specs from Steam

Hollow Knight: Silksong system requirements

Minimum and recommended PC specs as listed by the developer on Steam. Native macOS version available. Native Linux build available.

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows 10 version 21H1 (build 19043) or newer
ProcessorIntel Core i3-3240, AMD FX-4300
Memory4 GB RAM
GraphicsGeForce GTX 560 Ti (1GB), Radeon HD 7750 (1GB)
DirectXVersion 10
Storage8 GB available space

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10 version 21H1 (build 19043) or newer
ProcessorIntel Core i5-3470
Memory8 GB RAM
GraphicsGeForce GTX 1050 (2GB), Radeon R9 380 (2GB)
DirectXVersion 10
Storage8 GB available space

macOS minimum

OSBig Sur 11 or newer
ProcessorIntel Core i3
Memory4 GB RAM
GraphicsMetal capable Intel and AMD GPUs
Storage8 GB available space

macOS recommended

OSBig Sur 11 or newer
ProcessorIntel Core i5, Apple M1
Memory8 GB RAM
GraphicsMetal capable Intel and AMD GPUs, Apple M1
Storage8 GB available space

FAQ

What graphics card do I need for Hollow Knight: Silksong?

Minimum: GeForce GTX 560 Ti (1GB), Radeon HD 7750 (1GB). Recommended: GeForce GTX 1050 (2GB), Radeon R9 380 (2GB).

How much RAM does Hollow Knight: Silksong need?

Hollow Knight: Silksong needs 4 GB RAM at minimum, 8 GB RAM recommended.

How big is Hollow Knight: Silksong?

Hollow Knight: Silksong requires 8 GB available space.

Does Hollow Knight: Silksong run on Mac or Steam Deck/Linux?

Yes, there is a native macOS version. A native Linux build is available.