A precision sphere awakens in a calibration cradle at the edge of a void, where twenty worlds hang in empty space and gravity itself forms the track. Steered by the tilt of a hand, it rolls out through a chain of trials: glassworks and foundries, ice stations and storms, magnetic rails, weightless voids and tiny planets with gravity of their own. Each world teaches it a new way to move. Past the Event Horizon and through Fractured Reality, where even “down” stops holding still, the Crucible tests it against every force at once. Only then does the last world open: GRAVION, the impossible sphere, and one final descent home. Beyond the end of the map, a sealed, unlisted signal called NULL waits for those who gather enough gravity shards.