Chicken Invaders 2 Achievements Here is the full list of all 4 Chicken Invaders 2 achievements.Filter Achievement View View Image viewList view Sort by Won first then 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 AllWonNot wonMission Complete (Veteran)Awarded for completing a mission on the "Veteran" difficulty level 29 September 2020 - Add a guideNo Missiles (Veteran)Do not use any missiles on the "Veteran" difficulty level. 29 September 2020 - Add a guideMission Complete (Rookie)Awarded for completing a mission on the "Rookie" difficulty level 22 December 2019 - Add a guideNo Missiles (Rookie)Do not use any missiles on the "Rookie" difficulty level 22 December 2019 - Add a guide