There was a game like this on albinoblacksheep where you were escaping from some sort of strange institution. The name of it was "Space and Time" or something similar and it was pretty damn good. Not many underhanded tricks like in the above game, but lots of logical little puzzles. I got up to like level 10 or so and finally got stuck and forgot about it.
Edit: Here it is:
http://server-admin.pwp.blueyonder.c...nochatgame.htm
It's called "The Mystery of Space and Time"