Here is the full list of all 64 Out There: O Edition achievements.
Rule the Enemy
Purge a star system ruled by the Enemy
Build a Death Seed
Have your oxygen below 5%
Talk with 15 alien races
Learn all the alien words
Find the cathedral
Probe a star for fuel
Board a huge ship
Have the nostalgia of hamburgers.
Set your ship at 100% efficiency
Find the Crescent ship
Find a yellow ship
Set your ship at 100% ecosystem
Meet the Judge Architect
Encounter 10 alien races
Rule 140 star systems !
Map 120 star systems
Meet the Enemy
Receive a SOS
What a huge ship !
Discover 80 star systems
Board a strange ship
Learn how to say "Love" in alien
Scan a planet
Risk everything and live to tell
Orbit a black hole !
Have your hull below 5%
Meet 5 alien races
Receive a special call
Board a new ship
Dismantle your space folder
Visit 30 star systems
Fix something with Omega
Dig some gold !
Receive some Omega
Use the Synergy
Break your drill
Have an equipement destroyed
Drill an inhabited planet
Meet an Alien
Find an Artifact
Have your fuel below 5%
Approach a Black Hole
Explore 10 star systems
Orbit a Star
Build a Space Folder
Board a space station
Terraform a planet
Travel through a black hole
Reach the Iron Star Station
Find a way back home
Build all Space Folder upgrades
Know all alien races
Board a weird ship
Set your ship at 100% resistance
Build a telescope and its 2 upgrades
Build the Ansible
Reach the very last star
Save your kind
Jettison a human
Bring back an alien on its homeworld
You have gathered the interstellar alliance
You met with 30 alien races.