I have made a number of changes and additions. First the changes from previous feedback:
1. Doubled the width of the corridors
2. Added a speed control "+/-" on the numberpad.
Additions:
1. Some doors are locked (for future devs)
2. Added an item that can be picked up (LMB to view, "G" key to take it.
3. Extended the maze - going through the double doors takes you to a new section.
4. Lighting in "Wizard's room" turns on only when you get close.
Play here:
http://www.3dworlds.ca/unity/
gryff :)