Opus Castle Price Tracker
Opus Castle is free to play and download on Steam.
Last Updated: 6/27/2025
| Release Date | 11/9/2021 |
| Franchise | QUByte Interactive |
| Developer | Messier Games |
| Publisher | QUByte Interactive |
| Steam App Id | 1725660 |
Opus Castle Price Tracker
Opus Castle is free to play and download on Steam.
Last Updated: 6/27/2025
- Windows
- Mac
- Linux
Opus Castle DLC
Opus Castle has 5 downloadable add-ons available for purchase on Steam which include Opus Castle - Chapter 4, Opus Castle - Chapter 2, and Opus Castle - Chapter 6.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Opus Castle - Chapter 4 | DLC | 5/12/2025 | Steam Charts |
 | Opus Castle - Chapter 2 | DLC | 10/28/2021 | Steam Charts |
 | Opus Castle - Chapter 3 | DLC | 5/12/2025 | Steam Charts |
 | Opus Castle - Chapter 5 | DLC | 5/12/2025 | Steam Charts |
 | Opus Castle - Chapter 6 | DLC | 5/12/2025 | Steam Charts |
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Opus Castle data has been sourced from:
- Valve Corporation. (2025, June 20). Opus Castle on Steam. Steam Store.
- Valve Corporation. (2025, June 20). Opus Castle. Steam Community Hub.
- Messier Games. (2023, July 8). Opus Castle. Opus Castle.