Buy Guns of Icarus Alliance on Steam!
http://shingekinokyojin.wikia.com/wiki/Three_Dimensional_Maneuver_GearThere ya go.
The crew doesn't actually have a life of their own. They are ancient spirits, soul bound to the ship through dark techno-sorcery long since lost to man. Their corporal bodies have long since turned to dust. The humanoid figures you see scampering around the deck of a ship are but ghosts of those brave yet foolish individuals who volunteered to spiritually merge with these flying death machines. Ghosts have nothing to fear from bullets, flame, or shrapnel. Yet like any apparition they can not stray far from the corporal object they haunt. Attempts to win their freedom by leaping off their ghost ship are always met with humiliating failure as the dark magic rips the self projection back onto the cold hard deck it was so eager to leave. Only through the fiery destruction of the Airship itself can these lost souls hope to find the truce peace of the grave.
GoIO is just a bad dream, when you fall you wake up and are back on the ship.. how many dreams are you inside of though..?
I wonder why how they would manage to not fall from the ship in the first place, aren't the ship going crazy fast in this game ? Junker is slowest ship at 93km/h if I'm not mistaken, how can someone stay standing at that speed ?