Here is the full list of all 48 The Spatials achievements.
Had 1000 officers go into stasis
Completed 1000 bounties
Visited by 100000 visitors
Made 10000000 credits
Built 10000 floor tiles
Built 1000 objects
Failed 100 contracts
Manufactured 1000000 products
100 officers resigned
Killed 10000 enemies
Defeated the big bad end boss and saved the galaxy
Leveled one officer to level 30
Found 10 collectible objects
Unlocked the entire tech tree
Visited by 10000 visitors
Blorg will now visit the station
Made 1000000 credits
Conquered 100 planets
Nogi will now visit the station
Recycled 1000 items
Crusantians will now visit the station
Manufactured 100000 products
Completed 1000 contracts
Leveled one officer to level 20
Completed 100 bounties
Hired 100 officers
Lemurians will now visit the station
Manufactured 10000 products
Made 100000 credits
Killed a boss of WTF quality for the first time
Visited by 1000 visitors
Completed 100 contracts
Leveled one officer to level 10
Killed 1000 enemies
Killed a boss of hard quality for the first time
Manufactured 1000 products
Completed 10 bounties
Hired an officer for the first time
Visited by 100 visitors
Completed 10 contracts
Manufactured 100 products
Unlocked your first tech node
Killed 100 enemies
Completed a mission for the first time
Killed a boss of normal quality for the first time
Your first visitor has landed in the station
Completed your first contract
Landed on a planet for the first time