| Achievement | How to unlock
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| Ace Pilot | Shoot down at least five enemy aeros.
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| Betrayer | Betray Wesh.
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| City of Industry | End the game with Actorius Technology 80 or higher.
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| City of Lights | End the game with Actorius Grandeur 80 or higher.
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| Dangerous Liaisons | Romance the Quon Bexi spy.
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| Double-Cross | Double-cross your father after betraying Wesh.
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| Engine Slayer | Destroy at least three Deep Tech creatures.
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| Everyone Lives | The Air Guard captain, the Quon Bexi spy, the revolutionary, and the machine-girl all survive to the end of the game.
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| Ghost of the Skies | Maintain an impenetrable cover identity.
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| Glorious Revolution | End the game with Revolutionary Character 80 or higher.
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| Gossamer Pilot | Fly the Gossamer.
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| Honorable Authority | End the game with Combine Character 80 or higher.
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| Learned Your Lesson | Only crash once.
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| Love Among the Rheostats | Romance the machine-girl.
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| Love and Loyalty | Romance the Air Guard captain.
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| Reprogrammer | Reprogram an automaton.
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| Revolutionary Act | Romance the revolutionary.
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| Secret Garden | Find the Iridium Garden.
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| Spot the Spy | Identify Lectini as the Quon Bexi spy.
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| State of the Art | Reach 75 Empyrean at any time.
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| Still Flying | End the game with the Empyrean in your possession.
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| The Great Unification | Unify the Combines and the revolutionaries.
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| Wing Dancer | Fight a sword duel on the wing of an aero.
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