Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 3880830 |
| Live current players | 0 |
| SteamPulse tracked peak | 1 |
| Live count (today's peak floor) | 0 |
| Price | $4.99 |
| Free to play | No |
| Discount | 0% |
| Original price USD | $4.99 |
| Current price USD | $4.99 |
| Release date | Mar 9, 2026 |
| Developer | Messier Data e Creative |
| Publisher | Messier Data e Creative |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | No user reviews |
| Positive review percent | Not available |
| Positive reviews | 0 |
| Negative reviews | 0 |
| Total reviews | 0 |
| Steam recommendations | Not available |
| Achievements | Not available |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | https://store.steampowered.com/app/3880830/ |
Short description
In this sequel to Opus Castle, investigate the mystery behind the Joelma Building fire in a supernatural journey through time, uncovering the secrets of a demonic cult and spiritual horrors rooted in real historical events.
About this game
Hell didn’t end — it was merely asleep. In Opus Building , the sequel to Opus Castle , you return to the shadows of São Paulo for a deeper, more dangerous, and more supernatural investigation. Blending psychological horror, narrative exploration, and esoteric elements based on real events, this chapter places you at the center of a new mystery involving secret cults, demonic rituals, and one of Brazil’s most infamous tragedies: the fire at the Joelma Building. A new story unfolds with investigative journalist Helena Meirelles , hired to write a feature about the building’s revitalization. What she doesn’t know is that she’s being used by a cult seeking the second key to the Ark of Solomon — a hidden artifact of immense power tied to the 1974 fire. As Helena digs deeper into her story, she’s pulled into a temporal journey that takes her into the past, reliving the hours before the tragedy — and into a space where hidden forces are about to tear the Veil between worlds. Key Features: A setting inspired by the Joelma Building A dense and symbolic reconstruction of one of Brazil’s most iconic locations, shifting between the physical, the spiritual, and the infernal. Narrative exploration across layered timelines Travel between 1974, the present, and a distorted spiritual dimension where time folds in on itself — investigate, decode, and survive. Psychological and spiritual horror Demonic entities, whispers, illusions, and ever-changing environments create an atmosphere of dread built on tension and discovery. Inspired by real events. Powered by the unknown. Opus Building expands the universe introduced in the first game, taking historical horror to new spiritual depths. Get ready to face your own fears — and uncover what was truly sealed behind the doors of the 13th floor .
Supported languages
Portuguese - Brazil * * languages with full audio support