They've added in cloud moon glow, specific moon phases, sun punching through fog, new anti aliasing options, interior ambient light scaling, underwater fog, a background cloud layer, animation improvements, new trees and much more. It sure is starting to look pretty at times too with all the new environment art and visual effects. Enemy Break-through System so enemies react differently when breaking through a door, plus the same for when they fall door.New Weapons & Items like an automatic shotgun and a Tactical Assault Rifle.World and Location updates along with lots of new environment art.On Screen Sprite System for things like: Air Drops, Quest Markers, Player Bedrolls, Traders and more.New Survival System & Critical Injuries.HD Zombie models (some quite terrifying).They've gradually built it up with some seriously great features and Alpha 19 has continued that effort. 7 Days to Die has become, slowly, one of the best open-world survival games around. 7 Days to Die has a big upgrade out with Alpha 19. A little midweek Zombie hunting? Sure, why the heck not.