Exhaustion: I like the new rules for exhaustion and I will subsequently be rewriting my rules for it.

For every exhaustion level, any d20 roll is reduced by 2x the exhaustion level and speed is reduced by 5x the exhaustion level in feet.

This also makes me want to rewrite the encumbered metric to be more like this.

The grappler can drag the grappled.

Also: wheelchairs confirmed.

This is getting closer to modded Rimworld. Personally I'd like to see amputation mechanics and levels of prosthetics. In Rimworld, with every hit there is a body part affected and there is a hitpoint amount for that part, so when fingers are hit, they're almost always destroyed. Then you have at least three levels of prosthetics you can replace a finger with, basic, modern, bionic, and archotech, lost technology.