
Grezzo is a Japanese video game studio run by Koichi Ishii, known for his work on the Mana series of games by Square Enix. The company's name comes from the Italian phrase "diamante grezzo", meaning "a diamond in the rough".
Grezzo has been active in the gaming industry from 2010 to 2024, with 16 titles tracked on PlayPile. Their catalog primarily spans Adventure, Puzzle, Role-playing (RPG), with additional titles in Simulator. The studio carries a solid 78.5/100 average rating across their catalog, with 9 titles rated favorably by the community. Their highest-rated title on PlayPile is The Legend of Zelda: Ocarina of Time 3D (91.2/100). Games from Grezzo are available across 5 platforms, most notably Nintendo 3DS, Nintendo Switch, Nintendo Switch 2.















