Mythos Corruption


What Happens When You Read The Book Bound In Human Skin

There's a lot of wierd stuff in Cthuhu.
One of these things is the fierce dividing line between Cultists and Investigators.
But they often read the same books etc, so what makes a cultist? Are they insane to begin with?
Are they born with a desire to worship things with more teeth and tentacles then brain cells?

Well, I can't answer that question right away.
But some Investigators slowly become cultists, such as in 'The Case of Charles Dexter Ward'.

Originally the protagonist just read some books, and whilst he never worshipped anything, he did become a
sorcerer of sorts, albeit in a scientific way.

So maybe there's something in the evil and blasphemous Cthulhu Mythos tomes that corrupts,
makes the reader feel akin to cultists?
After all, reading so much about Cthulhu etc. must make investigators mildly obsessive.
Of course, it would be silly to assume an investigator reads a book and turns into a worshipper of Nyarthlotep.

So here's a rough idea.
Let's call Mythos Corruption a percentile rating, like Cthulhu Mythos.
It stars as zero, and as Investigators get drawn into the occult, they become less hostile to it.

SO how does it increase? Well, each time an Investigator reads a Tome, look at its + to mythos.
You might want to add a + 1 bonus in terms of corruption tests if the Tome is especially potent.
The player, upon completing the tome and gaining mythos, should make a resisted POW roll against the plus to Cthulhu Mythos
that the book grants.
If the Player succeeds, then s/he gains no corruption. If s/he FAILS, then roll 1D10, and add that much to the Mythos Corruption percentage.
ONLY when 100% is reached does the character become a cultist. However, in the interval, the character becomes fascinated with learning more
and seeks out more Mythos tomes.
Corruption also increases each time a character casts a Mythos spell.
This applies to most spells in Call of Cthulhu, but some which are used AGAINST the mythos do not count.
Each time a spell that you believe is part of the general loathsomeness of Cthulhu, then ask for a resisted POW
roll against a number between 1 and 10. Assign the number depending on how fully the character seems to be dealing with the Mythos.
If the character fails the test, then s/he gains a percentile of Corruption equal to the number you set...

However, corruption can be decreased.
Each time an Adventure is completed, the characters may make a SAN check. If they pass, they may subtract 1D6 Corruption percentiles.
However, if they fail, add 1D4 percentiles, as the madness begins to affect them...
In addition, every time a player casts a spell against the mythos, you may subtract 1D3 percentiles...

General Guide To Corruption Affect On Personality.
========================================================

1-10% = mild curiosity, certain phenomena may be beneficial to mankind if used correctly...

11-20% = A desire to research some more, the information has possible applications.

21-30% = Some experiments may lead to greater understanding of the universe, what we know is false...

31-40% = Fanatically seek out more information, the ANSWER MUST BE SOMEWHERE!!!

41-50% = Some of the saner cultists might know something, a polite interview may be in order.

51-60% = Attend some ceremonys, you have much to learn. Show some reverance to cultists.

61-70% = You're pretty mad, by now you don't mind dealing with Mythos entities regularly.

71-80% = Regularly cast spells, make forbidden pacts, sell out your friends.

81-90% = Mass Human sacrafice, Megolomania, fervent worship of unspeakable beings.

91-100% = Total devotion, even at cost of own life. Humans are fools and must be eaten etc...


Obviously NONE of this has anything to do with real life, I say to Evangelists and fundamentalists who no doubt believe I am a Satanist. Im not, Id like to add.

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IM NOT AN EVIL SATANIST!!!!!


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