Campaign, but it's just the SCP foundation.

Player character that's a mermaid who thinks she's God.

Campaign but it's bioshock

Player character that's a skeleton necromancer. He searches the world in search of his family. Plot twist: they were cremated

Campaign that takes place in candy land. The enemies are snacks and whoever kills them gets to eat them.

Shy skeleton necromancer mage boy. He lives in a massive chateau, with an amazing library and a stunning wine and whisky collection in the cellars that he can no longer enjoy. He speaks by voicing his thoughts with a particular spell (he has no tongue anymore) and he loves to play the piano. He was born with scoliosis and although he has no nerves anymore, experiences periods of phantom pain, which makes him retreat to his study and arcane spell room, sometimes for days at a time... He lives in the chateau with a few ghosts and other kinds of undead for company, but he misses the pulse of true life.