DIGITAL HEARTS HOLDINGS Co., Ltd. operates debugging, media, and other businesses through its subsidiaries. It offers debug testing and reporting for consumer, mobile, online, and arcade games, along with one-stop solutions such as translation, LQA, and marketing support for game makers expanding overseas. The company also provides content creation support, including game development and CG video production, and operates the 4Gamer.net website for computer and online game information and hardware. Additionally, it offers IT software testing, AI application development and testing automation solutions, security services, and IT system development, maintenance, and operation support. Formerly known as Hearts United Group Co., Ltd., it changed its name to DIGITAL HEARTS HOLDINGS Co., Ltd. in July 2018. Founded in 2001, the company is headquartered in Tokyo, Japan.