Twenty-one Raven Software QA workers, located in Wisconsin, began voting on Friday on whether to form a union called Game Workers Alliance.
Currently, Keywords QA workers are working on the next Dragon Age, the organizer said.
Keywords would be the second video games developer in North America to have workers organized into a collective bargaining unit.
Last week, the Alberta, Canada Labour Relations Board informed Keywords Studios that its Edmonton QA employees were organizing under the United Food and Commercial Workers Canada Union, Local No. 401, to be their collective bargaining agent.