Zombie Wars: Invasion Achievements Here is the full list of all 13 Zombie Wars: Invasion 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 Zombie MasterComplete level with 3 stars Anti Zombie Forces !Complete All Levels ! Dangerous Mission !Complete level with 3 stars on Hard Mode Code Name: The CleanerComplete all levels Hard Mode Medal of HonorComplete all levels with 3 stars Prepare for battle !First upgrade towers Master of DefenseUpgrade all towers level 5 Gun MasterUpgrade Minigun to level 5 Ice MasterUpgrade Ice Tower to level 5 Tesla MasterUpgrade Tesla to level 5 Flame MasterUpgrade Flame tower to level 5 Anti Flying ZombiesUpgrade Aircraft to level 5 SniperUpgrade Sniper to level 5