Looks like there is some nice puzzle game hidden, but unfortunately I couldn't get into it: The door didn't want to open, even after entering the right code. (The riddle was easy, but good.)
Some more comments:
- The graphics I have seen could be improved. The office building doesn't look like the HQ of a huge company and there is no background. What about just using some open source pics and a filter? That would look better with not much work. Otherwise a better 3D model would be needed. It's the first impression of the game, after all!
- Next page not only with mouse click, but also with space or enter, would be nice.
- The mouse clicks did not always work, although they gave a confirming sound.
- Whether the pattern should be white-grey or grey-white for the correct solution is unclear. Players have to try both?