Karma

Classic Marvel Forever
FASERIP – Drivethrurpg“>FASERIP
4C System
Classic Marvel Uncanny X-Men Campaign Set download
Mutants & Masterminds SRD
RPG Review – Super Squadron Rules Updates
http://www.fantasygamesunlimited.net/securefiles/V&VRulesOfThumb.pdf

Stars Without Number – Revised Edition

Labyrinth Lord
Lamentations of the Flame Princess
Narcosa
OSRIC
Secret Santicore
Sharp Swords & Sinister Spells
Swords & Wizardry

Pathfinder SRD

Eclipse Phase
Stars Without Number

FUDGE
Fate Core
Fate Accelerated

Gumshoe SRD

Mongoose Traveller SRD