Trophies
Population 50,00
Humanity Barely Survived. But You Complete The Story Mode On Easy Difficulty!
Population 100,000
Humanity Had a Rough Run! You Completed The Story Mode On Medium Difficulty!
Population 500,000
You Saved A lot Of People Today. You Completed The Story Mode On Hard Difficulty!
Population 8 Billion
You Completed The Game, On All Modes, And Unlocked The Secret Mode, + A New Difficulty Level! (To Achieve This Achievement you have to kill 50,000 zombies aswell making it impossible to get)