Pathfinder and Dungeons & Dragons The World of Aeleon is being written to be easily implemented with either the Dungeons and Dragons (3.5e or 5e) or Pathfinder RPG rules sets. As I go through the and continue to flesh out the various sections, I will add notes on rules modifications and add sample stat blocks as appropriate for each rules set. Generally, I will not add notes and stat blocks specific to D&D 3.5e, as in most cases the Pathfinder specific variations should be sufficient with little or no alteration. Aside from specific changes called out in the various sections, there should be no other rules changes needed to implement Aeleon in either D&D or Pathfinder. Other Rules Sets There's no reason why Aeleon couldn't be implemented in just about any fantasy based rules set out there. I leave the details to you.