Attack of the greenpilled pirates! The graphics are good, and it looks almost like Sea of Thieves in some parts.
I had a problem with the controls, though; for some reason I kept turning right. I'm pretty sure it was because I wasn't moving with the ship. Maybe you could make the ship stay in place, or even rotate the island so that it appears that the ship is moving.
I also don't see how this has much to do with falling. I thought it had nothing to do with the theme until I realized the zombies drop in boxes. It isn't central to gameplay but I'll let it slide a bit.