This was fairly fun to try and finish. Like other comments have suggested, I think the game had some room to fit in more horror elements in it to fit the jam a bit more. I enjoyed the dialogue with the sarcophagus and found it fairly amusing, as with the whole concept of dragging it around. Though I will say it was fairly common for the rope to clip through walls around corners, causing the sarcophagus to get stuck. Not sure if this was intentional mechanic or not, but I felt it added unneeded pressure when trying to escape.
Overall, I believe the game just needs some finer detailing and improvements to the atmosphere, but otherwise a solid game.