ToV Black Flag Reference Document (BFRD) Now in Creative Commons CC-BY 4.0

[bedir than]

Better than working with 5e, Level up, PF 2, Runequest, Archamge Engine and the whole 3.x OGC ecosystem?

Considering the ORC doesn't do that, yes

 

[mamba]

Better than working with 5e, Level up, PF 2, Runequest, Archamge Engine and the whole 3.x OGC ecosystem?

presumably the OGL? Yes, because this is a disparate bunch you would not use together anyway, while it does make sense for the different 5Es to mix and match