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 lightweight; almost any new laptops will work for playing CS:GO.
Every new laptop meets the RAM requirement of 2gb.
Also, note that at least 15gb of hard drive space is required, which has to be noted if you install many games.