THE BOY
The protagonist died at 18 after years of severe neglect in his foster family's room. He travels without realizing he is dead; the world he passes through is deliberately unexplained.
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FILAMENT / RESTRICTED DEVELOPMENT RECORDSPOILER
THRESHOLD.
This page reveals the protagonist's fate, Brother's identity, Luna's ending, and other central story twists. It is meant for people who want to read the unreleased design bible, not for a first-time visitor discovering the game.
YOU CAN ALWAYS RETURN TO THE SPOILER-FREE SITECLASSIFIED / DESIGN DOCUMENT CONTENT
The truth
behind the light.
BROTHER
The elder brother he remembers never physically existed. He was the imagined protector through whom the boy carried his own resilience, courage and self-compassion.
THE FINAL CONFRONTATION
Brother becomes the final boss — The One Who Kept You Alive. The climactic revelation reframes remembered rescues as the boy's own acts of survival. The choreography and exact True Ending remain undecided.
LUNA'S BOAT ENDING
Luna, coerced by the independent organization The Anchors, brings him to a larger ship where he is captured. Her younger sister meets her there. The sisters leave as the city disappears into fog.
The game's supernatural origin, the protagonist's final fate, and several other questions remain deliberately unanswered or in development.
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