Hey,
Promising start you have here!
I like the vibes and the concept. The timer decays pretty fast, and I had a couple of issues navigating.
Some of the doors seemed to work once, and then I was trapped in a room and couldn't find a way out before dying.
I reran from the start and took an alternative route, found the key and explored further.
Unfortunately, when I used the key, I encountered a crash!
This actually reminds me of some old AdventureGameStudio games I used to play many years ago.
Lots of potential here, best of luck polishing it up!