In the game you are a demon who is running out of space in hell. So your mission is to feed the monsters who are going into until they explode in order to have empty cells.
Each monster eat something different, we left here the guide, and if you make a mistake the monster will die without exploding.
To feed a monster first you have to click and select him. Later drag and drop the food from the top. To remove the focus click again on him.
Link : https://ldjam.com/events/ludum-dare/42/hell-of-space