Counter-Strike: Global Offensive is a free game made by Valve and Hidden Path Entertainment in 2012. Counter-Strike: Global Offensive (CS: GO) expands upon the team-based action gameplay that it pioneered when it was launched 19 years ago. CS: GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
The system requirements are light; almost any new laptops will work for playing CS:GO.
Every new laptop covers the RAM requirement of 2gb.
Take account that at least 15gb of disk space is necessary, which has to be noted if you install many games.