Knockback Mutations

A handful of mutations affecting knockback. - Melee Always Knockback - Melee Never Knockback - Charged Melee Always Knockback, Uncharged Never "Knockback" refers to zombies stumbling backwards when hit by an attack. Feel free to use them as you see fit. I personally don't enjoy how inconsistent knockback is with melee weapons especially, so I like playing knowing that each hit I successfully land will knock a zombie back and not instead let them get a free swipe at me while I'm stuck in my swing animation. And of course, the never-knockback options could be useful for those wanting to make the game harder.