Dark Tree RPG

From the publisher:

Dark Tree: RPG is a full fantasy role-playing game with unique systems of health, magic and combat. With the four different forms of health, your character may perish, but not be out of the game. The system of magic and ritual allows the player to create unique spells on the fly to accomplish the problem at hand. There is no need to look through books when you can simply make up what spell your character will use.