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Horror and mystery unravel across parallel realities in this atmospheric Brazilian saga.

Inspired by real events, Opus Castle is a narrative-driven adventure set in the mysterious Castelinho da Rua Apa, in São Paulo. In this first chapter, explore the haunted mansion, uncover secrets of the past, and make choices that shape your journey. Atmospheric exploration, puzzles, and subtle horror guide you through an eerie introduction to the saga.

Opus Castle - Chapters 3 to 6

Continue the journey through four new chapters that explore deeper layers of the mystery, each from a different character’s perspective. Traverse alternate realities, uncover chilling secrets, and make decisions that shape unique storylines. With expanded mechanics, narrative depth, and surreal twists, the truth behind the haunted castle grows darker—and more complex.