Is the e20 System a revision of existing d20-based Open Game Content, sort of like Pathfinder (Paizo Publishing)?
In my opinion, Pathfinder is a continuation of the core design philosophy found in Dungeons & Dragons 3rd edition and Dungeons & Dragons version 3.5 (hereafter “3.0/3.5”). Though it is definitely a revision, it is sufficiently similar that many characterize it as “version 3.75” of those rules. The e20 System, in contrast, is not meant to be a revision but rather to be a thorough rebuilding and rethinking of the 3.0/3.5 rules. Though many details will be familiar — you still have classes, levels, feats, skills, and talents seen in d20 Modern (hereafter “d20M”) and Star Wars Roleplaying Game: Saga Edition (hereafter “SWSE”), among others — the way that these mechanics work in the game is changing substantially, both in terms of how game statistics are calculated and what role they play in the game as a whole.
