Island Invasion Achievements Here is the full list of all 21 Island 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 Starting OutReached level 10 on Easy difficulty Learning The RopesReached level 25 on Easy difficulty Ready For MoreReached level 50 on Easy difficulty Movement Towards ImprovementReached level 10 on Medium difficulty Getting The Hang Of ItReached level 25 on Medium difficulty More Than CapableReached level 50 on Medium difficulty Challenge MeReached level 10 on Hard difficulty Bringing The PainReached level 25 on Hard difficulty UnstoppableReached level 50 on Hard difficulty Full SetBuilt one of every tower Full Metal JacketUpgrade a tower to its maximum level Precious Real EstateBuilt 20 towers on a map Scrap CollectorDestroyed 250 enemies Tank BusterDestroyed 1000 enemies Destroyer Of WorldsDestroyed 5000 enemies High RollerEarned a total of 250,000 resources To The EndFinished a game Pay RespectsPressed F to pay respects SurvivorSurvived 20 minutes of continuous spawning - easy WarriorSurvived 20 minutes of continuous spawning - medium ChampionSurvived 20 minutes of continuous spawning - hard