I don’t really like how death saves work. They’re abstract, and kind of arbitrary, and the whack-a-mole healing thing is silly. I’ve played around with a few hoserule alternatives, and they all have their benefits and drawbacks. I’ve recently come up with a new one I’m thinking about trying out, thought I’d run it by you folks for a vibe check. Here’s the idea:
When you first fall to 0 hit points, you automatically fall Prone. Whenever you take damage or start your turn while at 0 hit points, make a DC 10 saving throw (no modifier). On a failed save, you gain the Stunned condition until the end of your next turn. If you already have the Stunned condition, you instead gain the Unconscious condition. If you already have the Unconscious condition, you die.
This would completely replace death saving throws and the whole stable/unstable status.
I wanted to think this over for a few days before responding.
Overall I like it and it is similar to failed deaths saves equating to "stages" or "wound levels" I've seen before. This is how I would write it up:
Dropping to 0 Hit Points
When a creature drops to 0 Hit Points, it has the Prone condition and either dies outright or begins making Death Saving throws, explained below.
Death Saving Throws
When you start your turn with 0 Hit Points or take damage while at 0 Hit Points, you make a DC 10
Death Saving Throw to determine if you creep closer to death or hang on to life. Unlike other saving throws, this one isn’t tied to an ability score. You’re in the hands of fate now.
If you take damage from a Critical Hit while at 0 Hit Points, you make the Death Saving Throw with Disadvantage.
Success. You keep death at bay for the moment. You do not make additional Death Saving Throws unless you take further damage, even if you start your turn with 0 Hit Points.
Failure. You have the Stunned Condition until the end of your next turn.
Failure/Stunned. If you fail a Death Saving Throw while Stunned, you have the Unconscious condition until healed.
Failure/Unconscious. If you fail a Death Saving Throw while Unconscious, you die.
If we look at this, it means you only need to make a single DST to become "stable" at 0 HP. While simpler and more forgiving, it (hopefully) encourages PCs at this point to back out of the fight or at least focus on defense so they don't take more damage.