MGG is an international brand specialized in competitive video games and esport, created on February 26, 2002, by Cédric Page under the name Millenium, published since 2014 by Webedia.

Its activities are divided as follows:

Initially, in 2002, Millenium was a guild (a group of players with a common goal) focused on PvP (player versus player) in the game "Dark Age of Camelot."

Driven by passionate members, the guild quickly became a reference in the French community, and its founder, Cédric Page, first transformed it into a non-profit organization in 2006, then into a Limited Liability Company in 2008 (co-founded with Elie Rotenberg and Sébastien Sadosky). With the rise of broadband internet connections and the growing player base, the company diversified around several complementary areas:

As of May 2020, Millenium.org was the second most visited video game website in France, behind Jeuxvideo.com.

In October 2020, Millenium launched its site in Portuguese in Brazil and renamed itself MGG after changing its domain name to millennium.gg.