Housemarque Oy is a Finnish video game developer based in Helsinki. The company was founded by Ilari Kuittinen and Harri Tikkanen in July 1995, through the merger of their previous video game companies, Bloodhouse and Terramarque, both of which were founded in 1993 as Finland's first commercial developers. Housemarque is the oldest active developer in Finland and has about 110 employees as of 2023. It was acquired by Sony Interactive Entertainment in June 2021, becoming a part of PlayStation Studios.