Rocket Engineer

1. 
   Goodbye Clean Light

   Reach space
   72%
2. 
   What Goes Up... Stays Up

   Reach a stable orbit
   46%
3. 
   Fly Me to the... Oh, We're Here

   Reach Lun
   30%
4. 
   Percussive Maintenance

   Mine resources on another world
   12%
5. 
   Houston, We Have a Suburb

   Create a colony on Lun
   17%
6. 
   Rusty Dirt Enthusiasts

   Create colony on Ruo
   3.9%
7. 
   Some Assembly Required

   Process Resources
   8.2%
8. 
   Absolute Zero? Try Absolute Maximum!Secret

   Steam withholds the description of a secret achievement.
   7.4%
9. 
   Handshake Protocol Accepted

   Dock two vessels
   6.1%
10. 
    Biological Payload Delivered

    Bring crew to a colony
    13%
11. 
    Outsourcing Liftoff

    Launch a rocket from a colony
    1.7%
12. 
    Specific Impulse Enthusiast

    Use a rocket that consumes hydrogen
    3.4%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 12 of them.