Here is the full list of all 30 Iron Sky: Invasion achievements.
Destroy all drones in the Shooting Range in less than 30 seconds.
Destroy the Götterdämmerung.
Purchase all upgrades for the Dundee bomber.
Complete all Indian side missions.
Detonate the Überasteroid.
Destroy 300 Walkyr ships.
Destroy 10 Hunding ships.
Complete all US President missions.
Complete all Russian side missions.
Destroy 20 Wotan ships.
Acquire the Banzai heavy fighter.
Purchase all upgrades for the Korean light fighter.
Destroy the Wolfram capital warship.
Destroy the Walther capital warship.
Destroy the Tannhäuser capital warship.
Destroy 50 Alberich ships.
Repel the meteorblitzkrieg.
Acquire the Canadarm heavy bomber.
Destroy 20 Hanebu IV ships.
Safely escort Renate to the moon.
Destroy 100 Rheingold ships.
Collect 100 salvage.
Acquire the Spitfire frigate.
Destroy the Herrmann capital warship.
Destroy the Heinrich capital warship.
Destroy the Biterolf capital warship.
Acquire the Xerg light fighter.
Complete the tutorial part of the game.
Collect 500 salvage.
Destroy 10 Brünnhilde ships.