Mastiff has announced that Gurumin: A Monstrous Adventure, the 3D action-RPG developed by Nihon Falcom, has been released via Playstation Store. Immersing gamers in a vivid fantasy world filled with a colorful cast of characters, Gurumin: A Monstrous Adventure features 23 non-player characters, 48 unique enemies, and over 90 items to collect, puzzle and trap-filled dungeons, and more.