PC (Microsoft Windows)May 12, 2025
Released ✓ 
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Opus Castle: Chapter IV
Chapter 4 invites you into the heart of the castle's darkest secrets. Time begins to distort, showing the past as if it were the present. Visions of those who lived—and died—there become inescapable. The castle begins to reveal its own consciousness, reacting to your presence. Your investigation into the tragedy becomes personal, and each ghost you encounter has a story to tell—or a warning to deliver.
ActionHorrorSurvivalAdventureIndie
Game modes
Single player
Player perspectives
First person
Prices
Release dates
Xbox Series X|SMay 12, 2025
Released ✓ Nintendo SwitchJuly 24, 2025
Released ✓ PlayStation 5October 5, 2025
Released ✓ 