Here is the full list of all 69 The Long Journey Home achievements.
Brought the Daedalus-7 back home
Left the Final Gate open
Discovered an alien brothel
Flew too close to a star
Discovered a stowaway before they were caught or fled
Docked at a Raxact Black Market
Didn't bring enough bug spray
Brought your whole crew back home
Made it back home without losing any Landers in Rogue Mode
Made it back home without firing a single shot in Rogue Mode
Made it back home after attacking every alien met in Rogue Mode
Made it back home without healing any crewmembers in Rogue Mode
Made it back home in Rogue Mode
Made it back home without installing any new technology in Rogue Mode
Survived drifting through a starsystem for 10 minutes without colliding with anything or injuring the crew
Found all of the galaxy's relics
Visited all types of starports and cities in the galaxy
Met all ship types in the galaxy
Encountered all alien races at least once
Brought all eight bounty hunting targets to justice
Visited at least one ruin from every ancient civilisation
Visited all of the galaxy's biotopes
Solved all of the galaxy's current problems
Collected a sample of every animal in the galaxy
Collected a sample of every plant in the galaxy
Won all available trophies and contests in the galaxy
Sampled 5 foods or beverages in a single Journey
Transported 5 aliens aboard the ship at the same time
Collected and kept 5 alien relics
Created a wormhole
Failed before even getting out of Sol
Whatever you were thinking - no!
Brought the Mizzurani plague back to Earth
Sold Earth to the Entrope for harvesting
Retrieved a legendary treasure
Exposed a galactic conspiracy
Won a round of Jassikan's Teeth
Helped the Cueddhaest ascend to the Nextplane
Learned a dark secret about galactic history
Accessed the Entrope database
Helped spark the Wolphax Rebellion
Won the Wolphax Grand Tournament
Discovered a cure for Kirsten's cancer
Destroyed the Final Gate
Defeated an ancient galactic evil
Became allied with the Raxact Horde
Made enemies of everyone in the galaxy
Took more than 2 years to get home
Reassembled the alien warlord P'tah
Double-checked the moon landings weren't a hoax
Discovered a distant piece of Earth history
Found the perfect planet for an archeologist
Sold a crew member into Ilitza slavery
Tamed an adorable space pet
Built up an 1000 credit debt with the Glukkata Trade Alliance
Said what the whole galaxy was thinking
YOU KNOW WHAT YOU DID
Deployed an illegal gate hacking device
Survived all the Cueddhaest Sermons
Brought at least 15 souvenirs back to Earth in one mission
Made 999 credits in a single trade
Repaid a gambler's debt in full
Let Squire Temrach have his victory
Been cargo scanned by every alien empire
Became infested with 20 Kliktiks at once
Ejected desperate alien refugees into space
Collected all of the Glukkt VR experiences
Visited and escaped one of the galaxy's most dangerous planets
Dared take a trip through a black hole