Granule

Granule is a physics sandbox built around a ragdoll who won't stay dead. Break, bleed, burn, and dismember him with a growing set of tools, powers, and more.

It all starts with Murray, a man who, on a particularly bad day, did not let a certain driver merge onto the highway. That driver was a witch. In her rage, she sent Murray to The Granule - a dimension beyond death, but not beyond torment. Unknown to the witch and Murray, something already lives there. You.
You have Murray now. He can't die here, not the way people are supposed to. The Granule doesn't allow it. But everything short of that is still on the table.
Nothing that happens to him is decided in advance. He tries to stay standing and awake, bleeds when you give him a reason to, and mostly loses. When you've seen enough, you can patch him up and start again. He probably doesn't mind.
There are other things scattered around The Granule: some that explode, stab, sever, and mend, and some far older, far more powerful, that answer to nobody but you. Neither the witch nor Murray were ever meant to touch them.
There will be more - other tools, other challenges, ways to build your own Murrays and worse places to keep them. For now, he's yours. The witch isn't coming back for him, and You were always here.