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About Castle of Full Moon

Castle of Full Moon is a horror puzzle game about an elf girl forced to marry the cannibal lord of a mysterious castle. You solve puzzles, use switches and evade clowns, ghosts and monsters as you try to escape and uncover the truth about the castle and yourself. You can escape alone, with a companion or with all your companions, or choose to become the castle’s bride or its master. The game has nine endings, eight ways to escape and eight side stories.

The castle

The Castle of the Full Moon is full of mysteries, and its wandering ghosts may be friends or enemies. They have their own stories and wishes, and you can choose whether to help them. Its supposed first owner was Lucas, a legendary wealthy businessman, and his wife Sherry.

Characters

You play as a gentle, kind 170-year-old elf (equivalent to a human age of 17) with different pupils. Her clan considers her ominous, and she is sacrificed as a bride to the castle’s cannibal lord. She can use her own abilities or work with companions to escape.

  • Lane: A fallen vampire noble who serves as the castle’s butler. He calls himself the castle’s second-generation master and believes the heroine can help restore the vampire clan’s glory. A demon contract prevents him from drinking blood, but he cooks fine food and diligently cleans the castle. He is usually accompanied by a bat spirit and can transform into one when his contract is released.
  • Antony and Luna: Antony is an 18-year-old human with a high IQ. The heroine rescued him as a child; because he could understand the master’s words, he avoided death and became the master’s secretary through a demon contract. He is quiet, reads books and secretly practices swordsmanship, hoping to kill his master and avenge his family. His familiar is a cat named Luna, and he hopes to build her a large cat house after escaping.
  • Isabelle: The heroine’s 180-year-old elf sister, who is skilled in divination, dance and music theory. She shares abilities her clan considers ominous but hides them. Although she appears to have had no part in making the heroine a bride, she planned it in advance. She is an old friend of Mr. Mouse and wants to find the Butterfly Ring in the castle and escape this world with the heroine.
  • Ellisa: A powerful, precious flower fairy of unknown age who can take human form. Deceived by Baron Big-Eyed, she is imprisoned in the castle as a piranha. She needs someone to take her out of the nightmare so she can face her feelings and her relationship with the Baron again.
  • Cavill: The castle’s current owner, also known as Baron Big-Eyed. A descendant of the giant-eyed clan, he appears as a handsome human baron and sells demon contracts. On full-moon nights, weakness makes him take his true form, said to be that of a huge, strong monster. He also has an unknown side.
  • Mr. Mouse: A mouse who has lived for hundreds of years and witnessed the castle’s changes. He is afraid of Lane and Luna, likes talking with girls and is an old acquaintance of Isabelle.

Puzzles and endings

The game combines puzzle-solving with chase sequences and offers choices that shape how you leave the castle. Its nine endings and eight escape routes let you decide whom to bring along—or whether to become the castle’s bride or master. Eight side stories add more to discover about the characters and the castle.

Frequently asked questions

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Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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