XSp.

(Don’t) Save the Princess! is a very nice puzzle game made by Shen Games.

In it, you have the classic scenario: A princess in despair, the brave knight, and a furious dragon… only instead of helping the knight to save the princess, you’ll have to stop him and feed the dragon at the same time. 😛
Addicting game, with level editing possibilities!
Get it by clicking the image or at Shen Games’ (Don’t) Save the Princess! website.

Source: IndieGames