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