Glad I finally had some time to play the game!
SPOILERS
Honestly, the build-up was incredible. The fact that we could only answer 'yes' to drilling the creature drove the necessity that Thomas felt. I will say that it would have been pretty cool to get some more hints earlier from interacting with certain objects to continue building up the dread, but it didn't take away from the experience! I liked the vagueness of this game. For me, it seemed that he just wasted away, hence the question mark for the day. He lost track of himself and died. Was it the guilt buried inside? The screams he tried to repress? Or was it the isolation? Vague endings like this really help drive the themes of the game and give more life to the characters. You really have to think about the information you were given to see how you expound upon it. I think you did a great job! This was nice to come to after a long day (two exams lol). Thanks for sharing your talent!