Blacksite Theta
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About Blacksite Theta
Blacksite Theta is a puzzle game about escaping a sealed research facility after an occult experiment goes wrong. You play as Frank Sorenson, a former test subject and seemingly the only survivor of the catastrophe. With no one keeping him there, Frank explores the ruined facility in search of a way out.
The facility
In 1996, the United States' Occult Research Program came to a violent halt after an experiment failed. A lockdown sealed the entrance beneath reinforced barriers and tons of rubble, intended to contain whatever had gone wrong. Although the facility was presumed to have no survivors, Frank is still alive.
Frank's abilities
The procedures performed on Frank gave him occult abilities. Ritual texts describe him as a Conduit, able to communicate with a being from the Plane of Force, whose advice and granted power help him in his escape.
You use Frank's mutant arm abilities to solve increasingly complex puzzles: pushing, destroying, pulling, grappling and dashing. The facility's traps pose another danger; failing to evade them risks assimilation into Blacksite Theta. Your objective is to escape.
Frequently asked questions
Yes. Blacksite Theta is free to play on Steam, so there is nothing to buy to start playing.
The minimum requirements for Blacksite Theta are: Windows 7, Intel HD Graphics, Intel Core i3, 8 GB RAM, 4 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Blacksite Theta is a single-player game.
No. Valve rates Blacksite Theta as Unsupported on the Steam Deck.
Yes. Blacksite Theta is the full base game. You need nothing else to play it.













