Accidental FKR
My game has been unintentionally molting toward FKR. It started before ever hearing the term. It just kinda happened and I continue to enjoy its inherent permission for further mutations.
During a hiatus from D&D 5E, I found myself reading other game systems; exploring their rules (or lack thereof) and ideas. Honestly, I hadn't put together that I wanted to run another system. I was just being curious. Bits and pieces of various systems started to click; most notably, Dungeon World.
Hilariously, I've never run Dungeon World; nor do I have interest in doing so. I don't find it to be a particularly compelling game, but rather a fantastic GM reference! Just reading it changed the way I run games. It also illuminated my want of a different ruleset: something simpler; more inclusive. I didn't need to look very far (even if I did)... DW lead me right to World of Dungeons (WoDu).
There are a number of things in WoDu that changed my game forever (2d6 & Die of Fate come to mind) but in terms of FKR, it was the holes. What do these Skills do? How do rituals work? Decipher? The old GM in me would have thought: "okay, I need to figure out all this shit before we play". But thanks to my exploration of other rulesets, I was able to give myself permission to put these questions to my group. My players really took to this inclusive approach to rule creation. It's very likely why we've been playing for so long (going on 3 years)! Lighter rules also lead to less character sheet-gazing and more creativity. I was hooked!
Two years later, I published some of these house rules as Beasts & Barrows. But shortly thereafter, even BnB started feeling heavy to me. So with an inspiring nudge from 2400, I took another step and revamped them into their new, unfinished form: 1420 Beasts & Barrows. The most notable differences being the lack of stats and d6 dice pool skills. This new ruleset is currently peculating with my regular crew.
For the record, I have no desire to debate what is/isn't FKR. I am not an authority; nor do I wish to be. I purposely refrained from explaining it or linking it to anything here. I prefer its definition to remain elusive and open. I find my game jives with the idea of FKR more than other rpg philosophies (for lack of a better term). YMMV.