Promises

This game presents a stickman hero with a very straightforward top-down map: a corridor attached to three rooms, each containing a wise man, and a fourth room, secured behind three locks, containing a princess. So far, so good: go to the wise men, get their keys, free the princess. But wait, there's a catch: bringing to mind Tower of Heaven, as the game progresses and the player talks to first one elder and then the next, constraints begin being imposed on his movements. Sure, the wise man will give you his key, but only if you promise not to retrace your steps.

Go back on your word and none of the other sages will give you their keys. But the goal is impossible to reach without going back on your word, so it's critical to devise a path allowing every key to be truthfully gained before making your good name mud and going for the goal -- at which point the princess also has a promise she wants you to make.

The game, contains only one level of this puzzle.