They said the build number outlived its signature: Space Engine 0980. Not a patch, not a simulation — an engine that stitched possible skies together and let you step between them. It was cracked open on a forgotten torrent, verified by users who vanished in forums and left only accounts with a single post: "I saw home."

My apartment’s smart lights blinked into deep blue, then went dark. The holo-map on my desk warped, starfields folding like paper. From the speakers came a voice I’d never heard before but knew intimately — my own, sampled and rearranged into a melody of static.

— end hook

I closed my eyes. When I opened them, a notification read: SECURITY ALERT — IDENTITY LEAK. The engine had not only verified the download. It had verified me.

Steps behind the door. The neighbor’s cat walked through the threshold, but its eyes reflected a starfield not of this neighborhood. My reflection in the monitor wasn’t mine; it was older, wearing a jacket stitched from constellations. A message scrolled: WELCOME, USER 0980. SELECT ORIGIN OR CREATE NEW.