Official specs from Steam
XCOM: Enemy Unknown system requirements
Minimum and recommended PC specs as listed by the developer on Steam. Native Linux build available.
Minimum
| OS * | Windows Vista |
|---|---|
| Processor | 2 GHz Dual Core |
| Memory | 2 GB RAM |
| Graphics | NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or greater |
| DirectX® | 9.0 |
| Hard Drive | 20 GB HD space |
| Sound | DirectX Compatible |
| Other Requirements | Broadband Internet connection |
| Additional | Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4. |
Recommended
| OS * | Windows 7 |
|---|---|
| Processor | 2 GHz Dual Core (Intel Core 2 Duo 2.4 GHz or Athlon X2 2.7 GHz) |
| Memory | 4 GB RAM |
| Graphics | NVIDIA GeForce 9000 series / ATI Radeon HD 3000 series or greater |
| DirectX® | 9.0 |
| Hard Drive | 20 GB HD space |
| Sound | DirectX Compatible |
| Other Requirements | Broadband Internet connection |
| Additional | Initial installation requires one-time internet connection for Steam authentication; software installations required (included with the game) include Steam Client, Visual C++ 2008 Redistributable, DirectX and Microsoft .NET 4. |
FAQ
What graphics card do I need for XCOM: Enemy Unknown?
Minimum: NVIDIA GeForce 8600 GT / ATI Radeon HD 2600 XT or greater. Recommended: NVIDIA GeForce 9000 series / ATI Radeon HD 3000 series or greater.
How much RAM does XCOM: Enemy Unknown need?
XCOM: Enemy Unknown needs 2 GB RAM at minimum, 4 GB RAM recommended.
How big is XCOM: Enemy Unknown?
XCOM: Enemy Unknown requires 20 GB HD space.
Does XCOM: Enemy Unknown run on Mac or Steam Deck/Linux?
There is no native macOS version. A native Linux build is available.