Keep It Contained

1. 
   All Conditions Met

   Solve the Conditions module for the first time.
   15%
2. 
   Code of Life

   Solve the DNA Sequence module for the first time.
   13%
3. 
   Field Engineer

   Solve the Force Field module for the first time.
   22%
4. 
   Contain the Leak

   Solve the Gas Release module for the first time.
   49%
5. 
   First Key

   Solve the Key module for the first time.
   2.2%
6. 
   Mind Palace

   Solve the Memory module for the first time.
   42%
7. 
   In Sync

   Solve the Wave module for the first time.
   1.1%
8. 
   Right Connections

   Solve the Wire module for the first time.
   57%
9. 
   Access Granted

   Solve the Keypad module for the first time.
   7.8%
10. 
    Certified Researcher

    Pass the initiation test and officially join the containment program.
    76%
11. 
    Containment Breach

    Fail for the first time.
    74%
12. 
    Emergency Protocol

    Trigger the self-destruct sequence for the first time.
    51%
13. 
    Lights OutSecret

    Steam withholds the description of a secret achievement.
    3.3%
14. 
    Last Second Save

    Complete a level with less than 5 seconds remaining.
    15%
15. 
    Containment Secured

    Complete the entire game.
    0.0%
16. 
    Override AcceptedSecret

    Steam withholds the description of a secret achievement.
    4.4%
17. 
    Wrong Number?Secret

    Steam withholds the description of a secret achievement.
    43%
18. 
    Introduction

    Complete Chapter 1.
    45%
19. 
    Basics

    Complete Chapter 2.
    33%
20. 
    Intermediate

    Complete Chapter 3.
    11%
21. 
    Stalling

    Complete Chapter 4.
    2.2%
22. 
    Challenging

    Complete Chapter 5.
    1.1%
23. 
    Extreme

    Complete Chapter 6.
    1.1%
24. 
    Random

    Complete Chapter 7.
    1.1%

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.