Mythos: Book One

Mythos: Book One is a supernatural murder mystery visual novel where you investigate Lisa Harrison's death and uncover a hidden world of supernatural beings, secrets, and unexpected connections. Follow the clues, build relationships, and decide how the mystery unfolds through your choices.

The game combines investigation-focused storytelling with relationship-driven choices. Players can explore conversations, discover clues, and gradually uncover the truth behind Lisa Harrison's death while interacting with characters connected to the supernatural society hiding beneath ordinary life.

Mythos features a branching narrative structure where choices influence relationships and how characters respond throughout the story. Players can pursue different relationship styles while continuing to investigate the central mystery, creating different experiences depending on their decisions.

The supernatural world is revealed piece by piece as the protagonist encounters new characters, suspects, and hidden organizations. Instead of presenting every secret immediately, the story focuses on gradually expanding the player's understanding of the world and the people within it.

Later updates added Investigation Mode, allowing players to examine scenes more actively and search for additional clues. Relationship guidance, interface improvements, new music, achievements, and additional side stories were also added during development.

About the Developer
Nine of Swords is the developer behind Mythos: Book One, focusing on story-driven visual novels that combine mystery, character development, and supernatural worldbuilding.

Game Info
Engine: Ren'Py
OS: Windows, Mac, Linux, Android
Language: English, French
Genre: Supernatural Mystery Visual Novel

Updated to 1.1.0.0 on April 27th 2026.

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