I think you should continue developing this game, I don't know if there is a game with the same concept but that is a fun concept, beware of the fps problem though. Especially in the level with flames it became unplayable for me.

Impressive stuff Lazy_Programmer. 

- You nailed the theme with this one! 

- The puzzles you had were fun to play too and there's definitely ways we could improve on them. E.g. enemies/monsters that will sleep at night and be awake during the day and so on. 

- I'd advise you keep working on this game and see if you can take it to the next level.

Enjoy playing it!