This was very, very good. It's extremely polished, and the scares are good. When I got to the end, I realised that I would definitely buy/play a full length version of this!
It actually felt a little like an SCP game, with mysterious societies and weird creatures, if you're into that sort of thing. But with a Bioshock/Subnautica vibe going on. I'll absolutely be following the studio to see what comes next!
Here's a video, if you want to see someone flail around underwater for a while ;)