King Whurdler said:
Wouldn't that be the Warhammer 40,000 universe hands down? Every second of every day is just a never-ending torrent of blood, death, doom, and despair.
This. You're a Tau? You might be fine. That's assuming you don't go ahead and do anything that the Ethereals would rather you didn't (such as inter-caster hanky-panky, the punishment for which is literally indescribable, which is saying something for the WH40k world).
You're part of the legions of Chaos? Well, either you'll be angry, violent and likely to be beaten the fuck up under Khorne, fat, smelly, plague ridden, cancerous and otherwise in enormous amounts of pain while basically rotting as you stand under Nurgle. A hermaphroditic perpetual rape victim or living sex toy under Slaanesh, or holy shit if you are under Tzeench, it could be literally anything, and you never know from what second to the next will happen. It could be any that I already mentioned. It could be that one day, you are king of a system spanning empire, then the next, you are nothing more than a pink, sinewy mess stuck to the underside of Abbadon's space shoe.
Maybe you're part of the Imperium. Well, assuming you don't end up in some backwater shit hole planet like Volg, killed for being a heretic because you didn't prey to the God Emprah just now, brutally sent west while being part of the Imperial Guard or having gone through the excruciatingly painful procedure to become a Space Marine, then you will likely end up being killed as part of a civilian population during an alien invasion, or, just as likely, during an exterminatus from your own side.
You're an Ork? Well, I suppose this is actually the best of a bad situation. Sure, your life will be filled with little else other than wanton violence, but at least it's what you'll want.
Then if you're Eldar, there aren't many of you left, and you are also a space pixie. Who have power Psykers, but also feel every emotion a billion times more than anyone else, including the ones that come from having created Slaanesh (or at least your ancestors) which would be intense shame and guilt. Forever. Also, you will have terrible armour, it having been designed to look pretty rather than save your life. Then the Dark Eldar are basically this crossed with the Slaanesh one, so good luck with that.