Hey shields,
I just ran my first game in the zombie apocalypse genre and got heavily inspired by The Walking Dead.
I’d like to share my loot table and a couple of other tools with you, in the form of a handy trifold PDF:
https://drive.google.com/file/d/1BWb19jyIczg1AUK3G7sBL5KLXhoF1WQ9
Cheers,
glocke
Example: Lots of walkers are closing in to the 5 PCs, so everybody rolls CHA to resist freaking out. When more than 50% succeed (3+ PCs), the stress check is successful, if not I bump up the target by 1.
I count nat20s as “two successes” (aka cancel out another PC’s failed roll), nat1 count double too. Maybe bump the target by another 1 for any nat1 included.
Consider letting them roll CHA at the end of the scene too, to offer target relief.
Hope that helps 
I LOVE! that stress mechanic, feels good and doesn’t need to be something extra to track on a sheet like most stress systems are! I also like how its more about the group than the individual! 
Thanks! The only downside is, that enemy to-hit rolls don’t make full sense against the PCs’ stress target. That’s why I call for defense-rolls (or STR-/DEX rolls) when attacks are made against the PCs.
You are killing it with the booklet and ideas here for the genre. Love the stress idea, that’s a really elegant want to run it.
