In order for you to play CS2D on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
32-Bit Linux distribution recommended, otherwise some libs probably need to be installed: apt-get install libgtk2.0-0:i386 libidn11:i386 libglu1-mesa:i386 libpangox-1.0-0:i386 libpangoxft-1.0-0:i386
Processor (CPU):
1 GHZ
Memory (RAM):
256 MB RAM
Graphics Card:
64 MB 3D video card with OpenGL support
Storage:
50 MB available space
In order to play CS2D on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Processor (CPU):
2 GHZ
Storage:
100 MB available space
Sound Card:
OpenAL compatible audio device for voice chat