As Ars Techina reports:

According to the [Entertainment Software Association]’s measure of 2013 sales, women ages 18 and over now constitute 36 percent of all measured gamers, compared to boys under the age of 18, who represent 17 percent of the total population.

Overall, 48 percent of those playing video games now are women. And nearly 4 in 10 of all game players are now 36 years of age or older.

H/t: JAT