Here is the full list of all 38 House of the Dying Sun achievements.
Because I am not human.
Run over a traitor lord's escape pod.
Because this isn't real.
Because I love to kill.
To avenge the Emperor.
Destroy a vessel while inside its shields.
Purchase all upgrades.
So I could rest.
Assassinate The Traitor King.
Complete a mission on Harbinger.
Complete a mission on Warlord or higher.
To free the galaxy.
Earn a second wingman.
Add a destroyer to your fleet.
Earn a frigate for your fleet.
Purchase an upgrade.
Earn a new weapon.
Earn a wingman.
Complete a bonus objective.
Complete a mission on Invader or higher.
Destroy an escape pod.
Complete host uplink training.
Complete at least 1 battle in Challenge Mode
Survive for at least 5 battles in Challenge Mode.
Survive for at least 10 battles in Challenge Mode.
Assassinate Commodore Freyv.
Assassinate Commodore Ausgauth.
Assassinate Commodore Elduette.
Assassinate Lord Commodore Seigfast.
Assassinate Lord Commodore Ganuun.
Assassinate Lord Commodore Naybard.
Assassinate Traitor Admiral Anrune.
Assassinate Traitor Admiral Bergautur.
Assassinate Traitor Admiral Alfmundur.
Assassinate Prince Aum.
Assassinate Princess Admiral Du Moch.
Assassinate Kingsclone A1.
Assassinate Kingsclone B1.