What is Counter-Strike: Global Offensive?
Counter Strike Global Offensive is a video game that has been around since 2012. The game is the successor to the games Counter-Strike and Counter-Strike: Source, CS gaming has been around since the late 90s and source in the mid-2000s.
CS: GO is a first person shooting game, which means that you are the eyes of a “man” who can control just as you want. The game is played five against five, where one team are terrorists and second, Cops (anti-terrorist), terrorists will try to plant a bomb, and the police will try to defuse the bomb, the bomb exploded win round the terrorists and defuse the bomb wins the policemen. Round can also be won if all the players of the opposing team are killed without the bomb exploded, or defuse the roundtimen ends and it is 1.45 minutes long. Do any of the teams that we will win a round. First to 16 rounds wins machen. You play 15 rounds as Terrorist and 15 police (unless the game ends before).
CS 1.6 had over 40 million games sold (http://www.techaudible.org/play-counter-strike-1-6-multiplayer/). Counter Strike Global Offensive on 8 October 2014 8,384,121 unique players last month.
CS: GO has its daily peak where about 700,000 to 850,000 players playing simultaneously. In October 2013 the game had 53,263 so in two years, the game has grown about 400 percent, and it is still growing, but in August 2015 the game grew by 8.5%.
Comparing games the difference is not very large, from 2005-2010 attempted Valve (owner of the product) release new games similar to counter-strike because the graphics huh very lousy in 1.6 without success.