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Old 01-10-2011, 07:23 PM   #11
Nymdok
 
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Join Date: Dec 2006
Location: Houston
Default Re: 1e Tomb of Horrors Conversion

Quote:
Originally Posted by sir_pudding View Post
I don't think it's trivial. The philosophical differences between D&D DCs and GURPS modifiers are vast not to mention the purely mathematical differences between 1d20 and 3d6 probability.
I'd definitely have to look into it more, but if its simple pass/fail it shouldn't be that tough.

The saving throws, for example, in 1e AD&D are flat d20. A 60% chance of success is a 60% chance of success regardless of what your rolling.

Now granted, 3d6 gets a bit coarse in the middle, but the difference between 60% and 62.5% is pretty small and overall, Id say pretty negligible.

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