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