Opus Castle: Chapter III is an adventure developed by Messier Games, released 10 May 2025 on PlayStation 5, Xbox Series X|S, Nintendo Switch and PlayStation 4.
What Opus Castle: Chapter III is
Opus Castle: Chapter III is an adventure game developed by Messier Games and released in 2025. It is available on PlayStation 5, Xbox Series X|S, Nintendo Switch, PlayStation 4, Xbox One and PC (Microsoft Windows).
The premise, in the publisher's words
In Chapter 3 of Opus Castle, the mystery surrounding the tragic events on Apa Street deepens. The shadows grow denser, and the line between reality and illusion begins to blur. As you venture into previously unseen areas of the castle, you'll discover disturbing memories hidden within its walls. The paranormal phenomena become increasingly intense, and each decision you make brings you closer to one of several story paths—will you find the truth or be swallowed by the castle's darkness?
How it plays
It is played from a first person perspective. Its themes are action, horror and survival. It is a single-player game with no multiplayer component.
What it launched against
Opus Castle: Chapter III launched on 10 May 2025, within three weeks of Doom: The Dark Ages, Clair Obscur: Expedition 33, Elden Ring Nightreign and The Midnight Walk. It arrived 5 years into the PlayStation 5's life, so it was built for hardware developers already knew well.
Released around the same time: Doom: The Dark Ages, Clair Obscur: Expedition 33, Elden Ring Nightreign, The Midnight Walk.
Official trailer
Sourced from the publisher’s YouTube channel.
Screenshots
All media
Parents
Quick answers
Opus Castle: Chapter III — frequently asked questions
When did Opus Castle: Chapter III come out?
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