System Requirements - X-Hax/sa_tools GitHub Wiki
Hardware
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A DirectX 9 compliant graphics card 
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150~500MB of free RAM 
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A 3-button mouse (for the default control scheme) 
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Willingness to suffer and a lot of patience 
Software
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Windows 7 SP1 or later 
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.NET Desktop Runtime 8.0 (x64 version for 64-bit tools) - get the DESKTOP runtime 
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Visual C++ 2019 runtime, x64 version (if running a 64-bit OS)