Night of the BloodMoon

I am a scholar of the dark arts. A cult is summoning an ancient God. I can stop them. But my powers demand blood...

Navigate the streets of a cyclopean city, fighting your way past cultists and sparing as many of the innocents as you can manage. Can you stop the summoning before the Ancient God is summoned and ends the world? All of your spells cost blood which you must harvest from enemies or innocent townspeople.

Controls:
arrows: move
Space or up: jump
F: attack (does not cost blood)
D: blood magic attack (costs blood)
S: Teleport/Blink (costs blood)
A: Heal (Costs blood).