Official specs from Steam

Sid Meier's Civilization VI 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
OS *Windows 7x64 / Windows 8.1x64 / Windows 10x64
ProcessorIntel Core i3 2.5 Ghz or AMD Phenom II 2.6 Ghz or greater
Memory4 GB RAM
Graphics1 GB & AMD 5570 or nVidia 450 or Intel Integrated Graphics 530
DirectXVersion 11
Storage17 GB available space
Sound CardDirectX Compatible Sound Device
Additional NotesInitial installation requires one-time Internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Microsoft Visual C++ 2012 and 2015 Runtime Libraries, and Microsoft DirectX. Internet connection and acceptance of Steam™ Subscriber Agreement required for activation. See for details.

Recommended

NoteRequires a 64-bit processor and operating system
OS *Windows 7x64 / Windows 8.1x64 / Windows 10x64
ProcessorFourth Generation Intel Core i5 2.5 Ghz or AMD FX8350 4.0 Ghz or greater
Memory8 GB RAM
Graphics2GB & AMD 7970 or nVidia 770 or greater
DirectXVersion 11
Storage23 GB available space
Sound CardDirectX Compatible Sound Device

macOS minimum

OS10.14.6 (Mojave)
ProcessorIntel Core i5 2.7Ghz
Memory6 GB RAM
Graphics1 GB GPU Minimum - GeForce 775M | Radeon HD 6970 | Intel Iris Pro
Storage17 GB available space
Additional NotesNOTICE: It is possible for Mac and PC to become out of sync during updates or patches. Within this time period, Mac users will only be able to play other Mac users.

FAQ

What graphics card do I need for Sid Meier's Civilization VI?

Minimum: 1 GB & AMD 5570 or nVidia 450 or Intel Integrated Graphics 530. Recommended: 2GB & AMD 7970 or nVidia 770 or greater.

How much RAM does Sid Meier's Civilization VI need?

Sid Meier's Civilization VI needs 4 GB RAM at minimum, 8 GB RAM recommended.

How big is Sid Meier's Civilization VI?

Sid Meier's Civilization VI requires 17 GB available space.

Does Sid Meier's Civilization VI run on Mac or Steam Deck/Linux?

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