Cốt truyện

You wake up in a locked prison cell. Everything is red. On the wall of the cell is a mirror, and when you look into it, you see the truth. Your cell unlocks, but you're far from free. Explore a non-linear world with interconnected level design, each space more dream-like than the last. Talk to NPCs or slay them. Read the signs or ignore them. Take the path set for you or find another. Read a bunch of scripture against your will. Interpret it's lack of meaning. Worry about the mental health of another. Accept there's nothing you can do for them.