Firstly, we would like to talk about that this game needs very low requirements. So, it is mean, that this game can play everyone. So, requirements for this game are a good internet connection; 512 MB; RAM, or more to enjoy the game. you must have at least 750 MB hard disk in your PC; 128 MB video card should be; a mouse and keyboard to play CS 1.6; the microphone is optional; operating system support: Windows Vista/xp/7/8/8.1/10.