Meta-Houserule Overlay: "In Time"

[Necrosnoop110]

Ok, what about a normal D&D campaign but we overlay rules for individual death clocks similar to the movie "In Time."

Thinking out-loud here:

Each character class alots a certain amount of time till death per level? Once dead no magic can bring you back. If you kill certain enemies you can gain there time?

Thoughts?

[Necrosnoop110]

You don't gain experience points, you gain time at each level. And you can spend time like action points and xp costs.