What a spooky little experience.
I assume this was meant to evoke sailing down the river Styx, and each encounter was definitely interesting. I would love to see a longer version of this with more character to each individual soul, possibly having to decide for yourself wether they are friendly or antagonistic.
The one major issue here is sound. I imagine this was made for a Game Jam, but there are parts where the supposedly spooky noises are either underwhelming or sadly a bit comical. But still, everything else is far too interesting for that to detract from the overall experience
Your game begins at 17:28