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By all measures Isaac Llewellyn is a success in life. So why doesn't it feel like that? Something is horribly wrong. Join Isaac as he returns to his childhood home to try to make sense of what happened in his youth. To reconcile truth with memory, Isaac must explore a horrifying past.

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About The Bicameral Protocol

The Bicameral Protocol is a 1st person exploration game. Join Isaac Llewellyn as he returns to his childhood home, drawn there by a compelling desire to make sense of who he truly is. On the surface Isaac is a successful architect and is leading a good life. It’s what’s beneath the surface that worries him. Something's there, calling to him, pleading, scratching away from within.

<i>Think Gone Home meets the Backrooms.</i>

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Visit 1990s rural England and explore Isaac’s childhood. Is it as idyllic as he remembers? Isaac will need to explore realms spanning reality and sub-conscious hellscapes to get to the truth.
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Witness past events unfold, with fully voiced performances providing immersive encounters that reveal intricate threads of intrigue and revelation.
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Lore-rich and lived-in environments, featuring a wealth of items to discover and utilise. Personal possessions, newspapers, letters, keys, a telephone… no, not the telephone, anything but the telephone…!
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Explore a large countryside hub area, but beware: it won’t be quite the same each time you return. Something wails in the distance, and it’s hungry for company. You’ll have to be very careful if you want to reach your next objective.
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Features multiple sub-plots, each interconnected and yielding subtle insights into the greater mystery.

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.

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