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