I saw this game being advertised on r/rpg. It's a heavily condensed hack of The Burning Wheel. Currently it's name your own price on itch, so if anybody's interested, feel free to download it and take a look.
I've just downloaded it for the recommended $5 US.
It seems pretty good! It's use of traits is a bit different from BW. And the treatment of fallout actually reminds me a lot of Prince Valiant. (A couple of us in my group have described Prince Valiant as "BW lite".)