Not sure if this strictly adheres to the jam theme. Ignoring that, it is a very well executed first person 3D simulation of a 1930s balloon flight. I kept dying due to not being able to follow the popup instructions in time. They don't stay on screen very long either. I made 3 attempts which all ended in failure (= death). I got as far as needing to wind the barograph. I have no idea what a barograph is and I could find it anywhere.
I didn't realise WASD could be used to move around (tricky for me being left handed) so maybe that helps find it.
Still, I laughed at my incompetence each time I died which is the sign of a good game (blaming yourself instead of the game for failure).