Shame its unfinished, but can see it being an interesting concept for a game.

The title and description was a bit of a vibe killer for a first impression, but the core idea here is very interesting. It's too bad you didn't have enough time, hope to see updates! Good effort, you did well :)

I rated it 5 stars on creativity. Even after pressing spacebar a couple of times and trying to rotate and move I was not sure what to do. I did not have any idea about how the topography was around me and only saw some waves. Although the idea is creative, I am not sure how the gameplay works. Maybe the sonar needs to work in a way that players would know where to go.

Maybe this critique will be helpful when you finish this game.

Hey, even though this is unfinished, you should know that this is a great idea and I like the visual effect. Echolocation is a great concept for a horror title, and I think with the right tweaking, you could find a really cool balance between navigating reasonably well but having the effect impair your immediate awareness. Hope you keep on with this concept!