Hey, I played the game and wanted to share some feedback about it :D
-The main concept/mechaninc of the doors opening once is quite interesting.-Improving the main menu would be great :)
-A lot of paths lead you to the end of the game, I'll try to make more connections between them and just leave one that leads to the end of the game so you have to check a lot of the to get to the end.
-Some of the paths feel "empty" and some others feel very impresive and well thought.
In conclusion, the game is quite interesting on itself but with some work on it and giving some history around it would make it feel quite more solid :)
Regards.