Very dark and atmospheric game. I see that artstyle is actually good but graphics look blured. It's often problem for beginners in pixel art style, so I'll give you some advise: as I can see, you are using Unity. When you import texture into Unity set the filter mode to  point(no filter). The other promlem for me is lack of sound effects. During some puzzles there even no music. Otherwise, it is good for your first project. I wish you the best of luck with your progress!

Cool concept, the pattern in the timer was very clever :)

A few tips since it's your first game, your pixel art looks blurry because it's set to linear filtering, you should set it to closest or nearest (depending on the engine). The textboxes sort of mixed with each other, if you interacted with 2 things at the same time, consider blocking the player while the text is active or blocking the mouse button at least. 

The artstyle  is cool! 

I didn't know how to save the family, I have no idea what is missing from the universe, and I don't know the correct range of numbers. I don't know if this is just me or if the game doesn't give me much information to work with.