Waker is an interesting platformer puzzle game with a nice story:

Created by Scot Osterweil and Lan Xuan Le from GAMBIT (Singapore-MIT Game Lab), it has an interesting mechanic where you’ll have to draw the paths to read the room end by dragging an icon around.
It’s fairly easy and short… the image was taken from the last level, I just finished it.

Click the image or this link to GAMBIT’s Waker webpage, and play it!

Source: IndieGames