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2K
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Interface Full Audio Subtitles
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System Requirements

Windows
macOS
    Minimum: Windows 2000 (plus Service Pack 1 or higher), Windows XP Home or Professional (plus Service Pack 1 or higher), or Windows Vista; 1.2GHz Intel Pentium 4 or AMD Athlon processor, 256 MB RAM, 64 MB video card with hardware T&L (GeForce 2, Radeon 7500 or better), DirectX 7 compatible sound card, 1.7 GB of free hard drive space, DirectX 9.0c (included)
    Recommended: 1.8GHz Intel Pentium 4 or AMD Athlon processor or equivalent (or better), 512 MB RAM, 128 MB video card with DirectX 8 support (pixel and vertex shaders), DirectX 7 compatible sound card, 1.7 GB of free hard drive space, DirectX 9.0c (included)
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    Recommended:
    • OS: Mac OS X 10.4.11, 10.5.6
    • Processor: PowerPC G5 or Intel
    • CPU Speed: 2.0 GHz
    • Memory: 1 GB
    • Hard Disk Space: 2.5 GB free disk space
    • Video Card: (ATI): Radeon 9600 Video Card (NVidia): GeForce FX 6600
    • Video Memory: (VRam): 128 MB or higher
    • Media Required: DVD-ROM Drive
    • Peripherals: Macintosh mouse and keyboard
    • Supported Video Cards: NVIDIA GeForce 6600, 6800, 7300, 7600, 7800, 8600, 8800, 9400, 9600, GEFORCE GT 120, GEFORCE QUADRO FX 4500 ATI Radeon 9600, 9650, 9700, 9800, X600, X800, X1600, X1900, HD 2400, 2600, 3870
    • NOTICE: Intel integrated video chipsets are not supported.
    • NOTICE: Apple original CPU’s only, CPU upgrades not supported
    • NOTICE: This game is not supported on volumes formatted as Mac OS Extended (Case Sensitive) REQUIRES THE FULL VERSION OF Civilization IV for Mac OS X TO PLAY
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.