Keywords Studios, the video game services mainstay, is facing a line-up of disputes with unions after it laid off employees at one of its Canadian offices. The Dublin-headquartered company recently laid off 13 employees after BioWare, a division of Electronic Arts behind the Dragon Age series, ended its contract with the company. Keywords’ games testers in Edmonton had voted last year to join a Canadian workers union in a bid to negotiate deals on pay, benefits, and remote working. By voting to unionise, the workers became the first video game union of its kind in Canada. They joined the local…