"Game week" refers to the period of time when a particular game, sport, or competition takes place. It usually includes the days leading up to the game, as well as the game day itself and sometimes the days following it. Full definition
A new study found that participants who reported playing hours of games a week were better at a predictive task involving cue cards. (entrepreneur.com)
Retailers actually often have copies of upcoming games weeks in advance with instructions not to sell them until the street date. (n4g.com)
Frankly, they all should hold off on announcing new games the week before E3. (vghangover.com)