It seems promising, to say the least. As already mentioned, I was just running up and down, didn't find something else to do. I went through the comments, you didn't reply so, this is a riddle/puzzle on its own. But you nailed the theme since we do are the final person standing..!

like this game but don't know what to do also when I crouch I cant un crouch also I fall through the floor when I crouch

Atmospheric and spooky vibe, just a heads up holding crouch can let the player out of bounds. A little more time and this seems like a really good game. Cheers :) 

Couldn't figure out how to start. But first scene and main menu is really giving high quality vibe.

gives off some really spooky vibes! couldn't really figure out what to do though. and i had a bug that would make me fall through the ground when crouching 

This looks so cool! My dumb ass couldn't figure out how to do more than walk up and down the aisle though.