Recreational Violence: New Rules and Feats for Bar Fights and Brawls

From publisher blurb:

A Brand New Variant Rule and Feats For 5th Edition

After the quest is done, every adventurer has their own way of unwinding. Some settle into the nearest inn for well-deserved rest while others head to the local shops to spend the gold that’s already burning a hole in their purse. But there are always those members of every party that can only truly relax after indulging in a little recreational violence - and the best source is always a bare-knuckle brawl.

This supplement includes:

A variant ruleset for downtime brawling.
New feats for PCs who love to rumble.