castle idler demo Achievements Here is the full list of all 9 castle idler 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 first upgradepurchase your first upgrade. first demolitiondelete a tower for the first time. strategic moveset attack priority for the first time. ice tower unlockedunlock the ice tower for the first time. first tower upgradeupgrade a tower for the first time. first prestigeprestige for the first time. new recordbeat your previous record time in a level for the first time. no survivorsbeat a level without a single enemy escaping. triple threathave 3 different towers on the map at one time.