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