Existential Defense

A tower defense game in which you play a wizard. You need to cast spells or interact with things to strengthen your defense by magical creatures. But that’s not so easy because you have to reveal your own life essences that you lose when opposing knights break through your defense to summon the monsters. (Actually, I wanted to get it ready for the Ludum Dare Jam, but then I did not make it, so the right version comes a little later)