I destroyed the pyramid :)
Man wow, what a rich atmosphere. At first I thought the movement was way too slow, but in retrospect I think like tank controls in other games it actually added to the creepy survival horror aspect, it could still probably be a bit faster but the slow pace of moving through was on-theme for the underwater horror aspect.
In terms of visuals and audio I love it, so spooky and crunchy. Those body bags at the end are super creepy. I also got a fright the first time I faced one of the faster enemies (Siren I think?) and they rushed at me. Some interesting environmental story telling as well, like the spear in the dudes side that matches the audio log.
I was a bit confused whether or not my attacks were registering on the enemies, but they eventually died so I guess they were. That would be my primary piece of feedback, adding some more juice so I know when I connect.
Really cool entry, well done!