| App Type | game |
| Release Date | Nov 9, 2021 |
| Details Last Modified | July 18, 2026 (2 months ago) |
| Developer | Messier Games |
| Publisher | QUByte Interactive |
| Genres | Action, Adventure |
| Supported Systems |
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| Price | Free |
| Required Age | 0+ |
| Achievements | 39 |
| DLC Available | 5 |
| Website | https://messier.com.br/home/opuscastle/ |
| Support | https://www.qubyteinteractive.com/ |
| Support Email | contact@qubyteinteractive.com |
Opus Castle it's a 3D horror, adventure and mysterious game with a narrative based on the real tragic history of the little castle on Apa Street, located in the city of São Paulo, Brazil.
Family Sharing
Partial Controller Support
Single-player
Steam Achievements
Steam Cloud