Helen’s Mysterious Castle is a role-playing game developed by Japanese indie developer Satsu released on Microsoft Windows. Helen knows little about who she is and where she is, but she’s dying to find out. Stuck on an island with a mazelike castle begging to be explored, Helen lets her curiosity get the better of her. It’s a good thing she’s more than capable. Armed with a plethora of weapons she finds on her journey, Helen must battle monsters, collect amazing relics, and uncover the secrets of her mysterious home.