Ragemoor [Living Castle, NOOK, or ROOM?]

Ragemoor

From the creators of Mutant World! Ragemoor! A living castle, nurtured on pagan blood, harborer to deadly monsters! A fortress possessed of its own will and ability to change itself, with the power to add and destroy rooms and to grow without the help of any human hand. Its servants aren’t human, its origins Lovecraftian, and its keeper must fend off the castle walls from the terrible race of worm men!

The mad owner of the Ragemoor mansion seeks an heir for his throne. Unfortunately, the woman he loves would rather die than subject herself to him, his crazy apes, and his living castle!