1 Million Zombies Demo Achievements Here is the full list of all 11 1 Million Zombies Demo achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply 100,000 KillsKill 100,000 Zombies 250,000 KillsKill 250,000 Zombies 500,000 KillsKill 500,000 Zombies Zombie SlayerKill 1 Million Zombies Harvest of Horror - ExterminationDestroy every Zombie on the Harvest of Horror Level Harvest of Horror - DestructionDestroy all Destructible Items on this Level Cluck In HellKill 1000 Zombies with Chicken Bombs Pain in the GlassDestroy all Glass Houses on the Harvest of Horror level Harvester of HorrorUnlock the Harvester of Horror Fire from AboveUnlock the Fire From Above Minigame King PinKill 10 Million Zombies