
Opus Building
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.
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About Opus Building
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.
Game details
Game details
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Features
Opus Building price history
Lowest tracked price: €4.99 (Jul 7, 2026) · current best: €4.99.
Opus Building — frequently asked questions
Where can I buy Opus Building at the cheapest price?
Right now the cheapest offer for Opus Building is €4.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Opus Building has ever been?
The lowest price KingsPrice has tracked for Opus Building is €4.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How can I get Opus Building at a discount?
Create a free price alert on this page and KingsPrice will email you when Opus Building drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS: 64-bit Windows 10
- Processor: Intel Core i5-750, 2.66 GHz / AMD Phenom II X4 965, 3.4 GHz or AMD Ryzen™ 3 1200, 3.1 GHz
- Graphics: NVIDIA® GeForce™ GTX 670 or NVIDIA® GeForce™ GTX 1050 / AMD® Radeon™ HD 7950 or AMD® Radeon™ R9 270
- DirectX: Version 10
Recommended
- OS: 64-bit Windows 10
- Processor: Intel Core i5-2300, 2.8 GHz / AMD FX-6300, 3.5GHz or AMD Ryzen™ 5 1400, 3.2 GHz











