Official specs from Steam

Sky: Children of the Light system requirements

Minimum and recommended PC specs as listed by the developer on Steam.

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows 10 64-bit, build 1903+ (10.0.18362)
ProcessorIntel i5-6400 or AMD FX 8310
Memory8 GB RAM
GraphicsNvidia GeForce GTX 1030 or AMD Radeon RX 560
NetworkBroadband Internet connection
Storage3 GB available space
Additional NotesVulkan 1.2 Driver. GPU must have at least 2048 MB of VRAM.

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows 10 64-bit, build 1903+ (10.0.18362)
ProcessorIntel i5-8400 or AMD Ryzen 5 1600
Memory8 GB RAM
GraphicsNvidia GeForce GTX 1060 or AMD Radeon RX 580
NetworkBroadband Internet connection
Storage3 GB available space
Additional NotesVulkan 1.3 Driver. GPU must have at least 2048 MB of VRAM.

FAQ

What graphics card do I need for Sky: Children of the Light?

Minimum: Nvidia GeForce GTX 1030 or AMD Radeon RX 560. Recommended: Nvidia GeForce GTX 1060 or AMD Radeon RX 580.

How much RAM does Sky: Children of the Light need?

Sky: Children of the Light needs 8 GB RAM at minimum, 8 GB RAM recommended.

How big is Sky: Children of the Light?

Sky: Children of the Light requires 3 GB available space.

Does Sky: Children of the Light run on Mac or Steam Deck/Linux?

There is no native macOS version. There is no native Linux build (Proton compatibility may vary).