This Is Not For You is a non-Euclidean horror game about mapping a vampiric lighthouse

This Is Not For You, a dimension-defying horror maze game from Mexico-based studio Interactive Dreams, puts you inside a lighthouse that breaks every rule of space and logic — and slowly drains your blood.

You play as Ulysses, a shipwrecked sailor who stumbles into a lighthouse that's bigger on the inside and structurally incoherent. Walking north might take you south. Stepping out of a bedroom might drop you to the ocean floor. The core loop revolves around drawing maps to make sense of the impossible geometry — which is both the survival mechanic and the horror.

The game wears its inspiration openly: This Is Not For You draws directly from Mark Z. Danielewski's cult novel House of Leaves, a book famous for its labyrinthine architecture, unreliable narration, and typographic horror. That novel has been a touchstone for a certain strain of literary horror since its release in 2000, and games have occasionally tried to capture its disorienting spatial dread — but few as literally as this, with map-drawing as a central mechanic.

A trailer is out now. No release date has been announced yet.