Our protagonist lived his life normaly, had a PhD in physics and some problemes. Nothing too out of what can be considered common. At least until he died. 

After his death, he comes to himself as some breathing sphere. While still himself, he forgot a good part of his memories, he kept various parts of his knowledge, but it is obvious he was impacted mentaly. Now we follow his actions and their consequences in a brand new world where he causes mayhem and panic without meaning to.

Will he stabilise and be a new kind of dungeon? Or will he just continue being a mess of thoughts and doing atrocities without realising it?

I have stopped writing this story, it was one for me to train, and I have much to work on. I don't plan to resume it, but if I do, then I will rewrite it from the begining.