Empyrean Achievements Here is the full list of all 23 Empyrean 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 Ace PilotShoot down at least five enemy aeros. Everyone LivesThe Air Guard captain, the Quon Bexi spy, the revolutionary, and the machine-girl all survive to the end of the game. Ghost of the SkiesMaintain an impenetrable cover identity. Learned Your LessonOnly crash once. Still FlyingEnd the game with the Empyrean in your possession. Engine SlayerDestroy at least three Deep Tech creatures. State of the ArtReach 75 Empyrean at any time. The Great UnificationUnify the Combines and the revolutionaries. Wing DancerFight a sword duel on the wing of an aero. Glorious RevolutionEnd the game with Revolutionary Character 80 or higher. Honorable AuthorityEnd the game with Combine Character 80 or higher. City of IndustryEnd the game with Actorius Technology 80 or higher. City of LightsEnd the game with Actorius Grandeur 80 or higher. Love and LoyaltyRomance the Air Guard captain. Dangerous LiaisonsRomance the Quon Bexi spy. Revolutionary ActRomance the revolutionary. Love Among the RheostatsRomance the machine-girl. BetrayerBetray Wesh. Double-CrossDouble-cross your father after betraying Wesh. Gossamer PilotFly the Gossamer. ReprogrammerReprogram an automaton. Secret GardenFind the Iridium Garden. Spot the SpyIdentify Lectini as the Quon Bexi spy.