Wall World

1. 
   Meet in the Middle

   Knock on heaven's door
   85%
2. 
   One Way Out

   Reach the bottom
   39%
3. 
   What Kind of Day Has It Been

   Get defeated
   92%
4. 
   Stranger in a Strange Land

   Find a special spot
   59%
5. 
   A Hard Way to Go

   Pick up a key
   66%
6. 
   Long Time Coming

   Get all keys
   34%
7. 
   Three Slaps

   Build three structures
   55%
8. 
   House of Enlightenment

   Enter three rooms
   67%
9. 
   All the Bells Say

   Take three relics
   73%
10. 
    Get Some Then

    Slay 500 zyrex
    75%
11. 
    Endure and Survive

    Survive for a while
    66%
12. 
    The Hope That Kills You

    Buy all upgrades
    19%
13. 
    Force of Evil

    Use every weapon
    26%
14. 
    The Day the World Went Away

    Activate it
    33%
15. 
    Dying Changes EverythingSecret

    Steam withholds the description of a secret achievement.
    6.2%
16. 
    Threat Level Midnight

    Obtain a new weapon beyond the rift
    17%
17. 
    Watching Too Much TelevisionSecret

    Steam withholds the description of a secret achievement.
    14%
18. 
    The Route of All Evil

    Collect all blueprints beyond the rift
    3.7%
19. 
    Asteroid Blues

    Gather all resource types beyond the rift
    12%
20. 
    Down Like the Titanic

    Trigger the Devastator
    15%
21. 
    Optimal Tip-to-Tip Efficiency

    Max out the Locust Machine Gun
    5.9%
22. 
    Stop Dragon My Heart Around

    Max out the Chemical Weapon
    5.7%
23. 
    Papa's Goods

    Fully upgrade the vacuum capacity
    12%
24. 
    Sore Must Be the StormSecret

    Steam withholds the description of a secret achievement.
    11%

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 24 of them.