Duneborne

Entombed for crimes best forgotten, you have two choices: sit there and rot, or become Duneborne - trading in your soul for a chance at freedom. Ever after you are tied to an hourglass that grants incredible powers, but cursed to die when the last grain of sand falls...

Duneborne is active time battle-esque duncgeon crawler that revolves around balancing your life with the power you can wield. As time passes and sand falls through your hourglass, your lifeforce dwindles but your powers increase... however, an ugly end awaits those whose sands run out. Inverting staves off that impending doom, but reduces your powers to barely above mortal. At least, until the sands run low once more...