< - MFW it ended.
Not years, but definitely months.
Warhammer Fantasy. Was a wizard in a group that was trapped in a city that had been swallowed by the warp. Chaos Gods (featuring a custom-Slaanesh that was all about Aryan beauties and big shining knight stuff -- it was frustratingly cringy) were fighting for control. We were the monkey wrench.
Played a Bright Wizard. Initial group of players deliberately committed suicide over and over again, brought in friends to supplant them.
Anyways, long story, so TL, DR:
I kill an NPC we needed (things escalated unintentionally), he was a Death Wizard and basically shoved his soul into my body so he could haunt me forever. Discovered he had a daughter, woo redemption arc!
Eventually found said daughter being grabbed by the Slaanesh-replacement, allowed Death wizard to use my body to channel spells and eventually he flung his angry soul at a greater daemon in order to save his daughter. Nearly died, took daughter to safety, ended up so fucked that my allies cut a deal with 'friendly' Tzeentchians to keep me alive.
Turned out safe place was compromised; Slaanesh thing corrupted the whole place, removed our only safe haven and got the daughter anyways. I ended up mindhacked by the Slaanesh thing.
Turned out the twist of the campaign was that one of us was a descendant of Sigmar and was a conduit the gods wanted to use to fuck Sigmar up more directly, supplant him. Turns out I 'won' that lottery.
Endgame: We find a ritual that requires me to use said Sigmar connection and basically Save Everyone.
Problem: People we were working with were Slaaneshi. I ended up sacrificing my soul to it, doomed the Empire.
Everything I'd fought for through the entire campaign went the worst way possible. All friends died and my soul/body became a puppet for Slaanesh.
Still mad.
Bonus: it was my first full-length RPG.