Really neat concept with some pretty graphics. I didn't understand what the controls were at first so some kind of instruction might be helpful. If you continue working on it and add more levels I'd recommend containing the different blocks into different areas, otherwise you can just move all of them into one shadow.  

You have a README which is great, but you'll need a License file as well (these are two main criteria for open source category).

The "Continue the game" on the main menu is super hard to read. I got to 50%, but nothing is happening; I tried moving it around a little bit, but still nothing happens even though I have 50%. Fun concept, and different which is exciting. I like the clean prisms, add some music and sound effects and this would be awesome. Great work on your submission.

I really like the concept. One thing if you do finish it: It might be more interesting if the percentage is continuous, as in the total area of shadow, instead of just checking the center of each tile. Then of course, you’d have to have some tolerance at completion too, like “within 2% of 50%”.

Creative mechanics, I had fun!

Is something suppose to happen when you reach 50/50 ? or 100% because i did not happen 

Otherwise neat use of light sources to make a game

Nice try

ı couldn’t finish it in the time thanks to my Baby 😄. I will update it as soon as possible. Goal was to interact with the elements of game like lights and obstacles to keep the balance of light and dark. 

I don't know how to play this game. But I like the visuals!

I am very confused what the aim of the game is and how I complete a level