GROSS Demo Achievements Here is the full list of all 7 GROSS 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 PacifistCompleted Wave 1 in endless mode with no guns. The bare minimumKilled 1'000 zombies. Tax breakDestroyed 10 tax drones. Twenty is plentyCompleted wave 20 in endless mode. Mildly upsetDealt 100'000 damage. Easter bunnyReturned from the dead. Home defenseKilled a zombie in HOME.