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