My First 3d game!

Hi Everyone!
I made my first 3D game and I want you guys to try it out and give me feedback. Its name is The Maze. So what you have to do is to to find the elevator which will have no power and then find and restore the power supply and then escape through the elevator. Now I only made the Demo where it ends there but in the full game the journey will resume.There is also a secret second ending by escapong through the keypad door so i hope someone finds it too.
HINT:Click all the boxes in Main Menu
If there are any bugs feel free to report.
Link:The Maze:Demo | Play on