Had a great time with this. The visuals are really good, and the sound design is just amazing. The way the narrative is integrated into the exploration/gameplay is really natural, and the story itself is also very engaging. The environment is also full of little details that are easy to miss, but definitely add a lot. Seriously great job with this, loved playing it :)
SPOILER // I also loooved how the oxygen deprivation played into the paranoia of whether everything was in your head or not. For a moment I was fully convinced there was no "monster" and the gimmick was to trick the player into feeling uneasy through the atmosphere alone. Seriously great job there.