I have no idea what this little project is going to turn into... probably a searchable blog or database once I have gotten a little further into it. I wanted to list a series of optional rules I've run across in the Indie TTRPG scene that I find valuable, including where they can be found, what genres they might best be used in, and some keywords for playstyles.
This is going to be a living project where I add a few every once in awhile, and see how it evolves.
I will not include material I have seen presented as an optional rule in the core book of a current pooular TTRPG. For example, I do not include Advantage / Disadvantage because it is a rule in the core of D&D5e, and readily visible to anyone in the TTRPG community. This is meant to draw attention to options you might not have discovered.
In each entry I have a "Find it In" section; this does not list the original appearance of the mechanic. Instead I list where I have seen interesting, innovative presentations of the mechanic. I give priority to games that are free, open culture, or at least have a downloadable quick start manual, or that cost less than $10. And I link to where the rules can be accessed most easily in my experience.
I also have sample Keywords that cover descriptions of kind of feel or experience the mechanic supports. If a rule works well to make a campaign feel "Dark", then that is where I list it. This will let you easily use this list with the Poster Pitch tool I have presented in part one of my two-part guide to rules hacking.
Likewise I have listed common genres of TTRPG that this specific rule will support well.
I ask you for your feedback: Is this a project worth expanding and developing