Here is the full list of all 65 Warhammer 40,000: Rogue Trader achievements.
You swore allegiance to the C'Tan.
You queued patiently with the commoners in Jae's second quest.
You surrendered Eufrates II to Chaos.
You investigated the secret bunker in the distress signal zone.
You stepped willingly into sewage on Footfall.
You found a gold xeno-idol.
You wore the Halo Device.
You handed over Idira, Yrliet, and Marazhai to the Inquisition.
You learned the Necron language.
You let the Khymerae tear apart all the gladiators in the first battle in the Commorragh arena.
You removed all debuffs from the Rogue Trader before meeting Malice.
You solved all the puzzles at the unidentified ruins.
You visited all optional locations.
You killed the Daemon of Tzeentch in the sewers under the Upperway.
You scanned all worlds and reported them to the Explorators.
You melted the ice planet.
You completed 20 orders.
You destroyed 30 torpedoes.
You dodged 500 enemy attacks with your party members.
You became a Votary (Heretical) on Daring difficulty or above.
You became a Votary (Iconoclast) on Daring difficulty or above.
You became a Votary (Dogmatic) on Daring difficulty or above.
You completed the game on Daring difficulty or above.
You completed the game with any Conviction: Zealot on Daring difficulty or above.
You killed a defiler without destroying any of the 4 plasma batteries strengthening it.
You returned the boots in Chapter 3.
Playing on Daring, you did not let any shuttles be destroyed at the end of Chapter 1.
Playing on Daring, you did not let the Chaos Spawn consume any cultists at the end of the Prologue.
You finished the game.
You raised your own abomination.
You destroyed at least one ship of every enemy fleet (pirates, Chaos, Asuryani, Drukhari, Necrons).
You completed Chapter 4.
You recruited a secret companion.
You subdued the Pit.
You visited half of the optional locations.
You found your true love.
You completed the highest-tier colony project on each of your colonies.
You reclaimed all the colonies of the von Valancius dynasty.
You restarted the shields on your flagship and received no damage to the hull while doing so.
You completed Jae's second quest without being spotted.
You discovered the truth about Nomos.
You completed a colony project of the highest tier.
You prevented 10 combats through dialogue.
You completed Chapter 3.
You performed 500 critical hits with your party members.
You obtained Sweet Perdition.
You discovered the truth about Theodora's death.
You completed Chapter 2.
You tried to reach the Imperium.
You secured Dargonus.
You won all void combats.
You drove Marazhai mad at the governor's camp.
You decided the fate of Kiava Gamma.
You resolved the crisis on Janus.
You killed an enemy with 100 damage dealt by one attack.
You charted a new path through the warp from one system to another.
You gave the inheritance to the girl at the old pirate's funeral.
You killed 5 enemies with one attack.
You gained a third-tier doctrine.
You won your first void combat.
You completed Chapter 1.
You started a romance.
You gained a second-tier doctrine.
You completed the Prologue.
You visited all the systems in the Koronus Expanse.