ACTIVISION Blizzard workers walked out on strike on Wednesday demanding an end to sexual harassment and better working conditions for women amid claims of a “frat boy culture” at the gaming giant.

Around 200 workers staged a picket outside the company’s headquarters in Irvine, California, brandishing placards slamming “unaccountable bureaucrats” for the poor working conditions.

Organisers said it was “the beginning of an enduring movement in favour of better labour conditions for all employees, especially women, in particular women of colour … and other marginalised groups.”

The action comes after a lawsuit was filed against the Call of Duty publishers on June 20 claiming discrimination and sexual harassment.

The lawsuit mentions an incident where a woman who was subjected to sexual harassment committed suicide while on a company trip with her supervisor.

Women workers at Activision Blizzard alleged that the company has a pervasive “frat boy” culture in which women are paid and promoted less than their male counterparts. Just 20 per cent of the company’s workforce are women.

Activision Blizzard has denied the allegations and said it was taking “the actions necessary to ensure we are providing an inclusive, welcoming and safe environment.”