69%Strong matchAd Infinitum
77%66477% positive reviews, Mostly Positive across 664 reviews·Horror · Psychological Horror
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Fourth Dimension is a single-player psychological thriller where reality and fear collide. Navigate dark dimensions with parkour mechanics, test your reflexes, and face the terror that awaits.
• This is an early horror prototype focused on atmosphere, tension, and core gameplay testing.
• The game is still in development and content will be expanded and improved over time.

Fourth Dimension is an atmospheric psychological thriller and parkour experience where you journey through the dark corners of your subconscious.
You’ll find yourself in a dimension where nothing is as it seems.
Overcome parkour challenges, follow the story, and feel the rising tension with every step.
Each step forward pulls you deeper into the unknown, leaving you no choice but to face your fears.


Amidst forgotten graves cloaked in mist, there is something… watching you, gazing at you — a presence from the past. This spiritual entity is the echo of a dark curse from centuries ago, born from souls that could never rest beyond the veil of mortality.
You can hear its whispers only in the silence of the night, when your heart slows.
Even when the wind ceases, something echoes in your ear. Whispers of a name... Shadows stir. The darkness closes in around you.
No one knows why it is there.
Some say it is the spirit of one who was cursed for betrayal. Others believe it is the reliving of a tragedy that repeats every night at the same hour. But those are only rumors...
But one thing is certain: there is no escape from its wrath.
Its presence does more than watch; it constricts around you and seizes you. In your most vulnerable moment, it reveals your deepest fears.
If you sense it… it may already be too late.


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