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