RQ6 is one of about right different games that use OGL variations of the BRP/D100 system. That in itself might be enough to scare off a publisher -- with so many different variations, that would be a lot of switchable options you would need. Like Combat Styles for RQ6 that do not match the way combat skills work in other BRP games.
LWD will also have to make a decision when CoC 7th edition is released later this year, which shifts from the normal 3-18 to percentile stats. Is it worth their trouble to release a 7th Edition set?
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