I've written a set of tabletop rules based on--but significantly different from--D&D 5E and I'm interested in the possibility of using d20Pro to run the game online. That said, I'm not clear on how viable a choice d20Pro is for the purpose; it looks like it'd be a lot of work (which I'm in for no matter what virtual tabletop I choose), but it also looks like it might not be reasonably possible. I'd like to determine which is the case without sinking in the cost of a d20Pro license. The system I've designed uses character levels and the ability score and proficiency bonus mechanics, but instead of classes has a large array of 'talents,' one of which is gained each level and several of which are taken at character creation in lieu of a more rigidly-defined class. Hit points are based on a multiple of the sum of Constitution score and character level (and modified by some talents, but there are no hit dice). Instead of spells, every character gains 'power points,' which can be used to learn and evolve 'powers' that use a cooldown system instead of spell slots. d20Pro looks well primed for handling some of the 'mathier' parts of the system, but my investigation of the program's documentation suggests implementing custom rules on this scale might be beyond the current release build. What do people think?