Purgatory

Artemis wakes in a strange forest and meets an infuriating vampire. Stuck in Purgatory he must find a way out. Artemis falls into Hell and is at the mercy of the master of the pit, a merciless demon who delights in breaking people.

Unfortunately for Artemis, greater things are at work...

As usual, Heaven is really bad at orchestrating the universe. An angel loses Artemis' paperwork and all hell breaks loose. Literally.

Meanwhile, in Hell a war is brewing, millennia long plans coming to fruition; the end of the world creeping ever closer...

His friends and family think he is dead, with no body, they assume he was vaporized in the blast when a portal was opened to banish the souls of the Berserker warriors from the living world.

Or: Artemis is stuck in Purgatory, makes a friend, falls into Hell gets tortured/Stockholm syndrome and generally loses his shit. Dr Argon is going to have a field day with this one.

https://www.royalroad.com/profile/473529/fictions