"Fate cage" is a plot puzzle game focusing on family of origin conflicts to virtual reality. The game is designed to have a multi-branch ending, that is, the ending of the story is in an unknown state. Whether the protagonist finally rushes out of the cage against fate or does not dare to resist and suppress the rest of his life is determined by the "mood value" and "courage value" finally obtained by the player. Based on virtual reality, players can explore in various game scenes full of the protagonist's memories through the first perspective, find hidden clues, evoke memories, solve puzzles, and uncover the deeper truth and secrets behind the story through the association and suggestion between clues. The game as a whole creates a strong sense of dreams and a mysterious atmosphere of memories. Players will be immersed in vivid and realistic VR scenes, find themselves in dreams and reality, and move towards their own ending.