I'm here! I'm working with Twine for this jam, so when "falling" was announced, I was stumped. I was still at work for a few hours at the beginning, but by the time I got home I had a basic idea of what to do.
Progress so far! Since Twine is text based, I'm not using any graphics (or sound), so I decided to get a sense of "falling" by using a timer. The player will have between 30-60 seconds to get through what parts of the story they pick and then see where that gets them when the game ends. I'm inspired in part by Queers in Love at the End of the World.
It took me a few tries to implement a timer, made even harder since I had limited access to the internet yesterday. The way I initially wanted to use the timer didn't work with how the Twine format works, but I have a timer now and it's functional, which is what matters!