Rule System Directory

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Rule System (sort) Publisher (sort) Edition Settings Campaigns (sort)
Gamma World 1st 1 3
Gamma World 2nd 1 1
Gamma World 3rd 1 1
Gamma World 4th 1 1
Grimm 1st 1 3
GUMSHOE Pelgrane Press Ltd 1st 4 6
GURPS 4th 6 27
GURPS 3rd 6 5
GURPS 2 1