In my real life gaming world I've incorporated Death, Frost , Doom into my regular campaign. The players have hauled off a fair bitof loot (considering I've been cheap in the campaign so far) and haven't ended the world yet. They don't know about the curse a couple of them are under so I'm sure they'll be back. They've actually been doing an annoyingly good job of avoiding entering dungeons until as of late, now the lack of cash is driving them to the underworld so even withotu the curse I know they'll get back to Death, Frost, Doom.
So how'd I spring Death, Frost,Doom on the players? Well by having them bump into a littel old man looking for some partners to help him hunt down some treasure, they checked out his map and agreed to giving him a substantial share for everything the hauled out of the ruins that are rumored to be up there on the mountain which is known as "Death, Frost, Doom" in an obscure elven dialect in my campaign. Beore they finished prepping and set out the gentleman turned up at the Inn they were staying at,smunped to the floor poisoned to death and was clutching the empty scroll case that held the map to Death, Frost,Doom. Inspecting his home revealed it hand been searched but soem of his M-U parephenaila hadn't been hauled off. The party split for the dungeon the next day.
I just can't keep my players away from a place labeled Death, Frost, Doom in an obscure dialect on a dead man's map.
I hope to (soonish) get in a few sessions of Mutant Future using the NML:Mutant Front setting. I neeed the direct feedback from the players and the need to spontaneously create to give me more to add to life to the setting.
There is a Call of Cthulhu campaign on hiatus I'd love to get back to (as a PC even). My character there was willfully entering a cycle of depravity and madness. A few of the other players asked me why I was playing such a sick soul as the mad doctor I'm playing and I replied: Lovecraft's tales weren't always about the good guys and there were darned few heroes that I recall.