Gray Skies, Dark Waters system requirements state that you will need at least 4 GB of RAM. To play Gray Skies, Dark Waters you will need a minimum CPU equivalent to an Intel Pentium 4 2.00GHz. The cheapest graphics card you can play it on is an NVIDIA GeForce 7200 GS. In terms of game file size, you will need at least 3 GB of free disk space available.
Gray Skies, Dark Waters will run on PC system with Windows Vista or newer and upwards. Additionally it has Mac and Linux versions.
Minimum System Requirements
CPU
1.4 GHz
RAM
4 GB RAM
OS
OS X or newer
Graphics Card
512MB of VRAM
HDD Space
3720 MB available space
Minimum System Requirements
CPU
1.4 GHz
RAM
4 GB RAM
OS
glibc 2.11 or newer
Graphics Card
512MB of VRAM
HDD Space
3170 MB available space
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