"Penny Arcade" is among the most popular and longest running webcomics currently online, listed in 2010 as having 3.5 million readers. Holkins and Krahulik are among the first webcomic creators successful enough to make a living from their work. In addition to the comic, Holkins and Krahulik also created Child's Play, a children's charity; PAX, a gaming convention; Penny Arcade TV, a YouTube channel; Pinny Arcade, a pin exchange; and the episodic video game "" with Hothead Games and Zeboyd Games.