En Masse Entertainment, Inc. (formerly Bluehole Interactive, Inc.) was an American video game publisher. Founded in June 2008, the company was based in Seattle, Washington and is best known for publishing massively multiplayer online role-playing game TERA, which was developed by parent company Bluehole. The original En Masse leadership team had extensive experience in the video game industry at leading companies, including Blizzard Entertainment, Microsoft, NCsoft, ArenaNet, and Electronic Arts. In January 2013, Chris Lee and Soo Min Park became chief executive officer and chief operating officer, respectively. On November 5, 2018, Bluehole and its subsidiaries, which include En Masse, were rearranged horizontally under a new parent company, Krafton Game Union. En Masse announced on Augus