Trepang2

1. 
   Erase Your Light

   Escape from Site 14
   82%
2. 
   Take Your Flight

   Complete Level: Pandora Institute
   60%
3. 
   To A Place Where You Will Be Remembered

   Complete Level: Jorvik Castle
   43%
4. 
   To A Place Where You Will Be...

   Complete Level: Site 83
   33%
5. 
   ..Loved

   Completed Level: Horizon HQ
   29%
6. 
   TREPANG2

   Break The Cycle
   28%
7. 
   Not So Hard

   Complete all campaign and side missions on Hard difficulty or higher
   13%
8. 
   Supersoldier

   Complete all campaign and side missions on Very Hard difficulty or higher
   5.3%
9. 
   Subject 106

   Complete all campaign and side missions on Extreme difficulty or higher
   3.2%
10. 
    Unbreakable Will

    Complete all campaign and side missions on Rage Mode difficulty
    2.5%
11. 
    The TruthSecret

    Steam withholds the description of a secret achievement.
    26%
12. 
    One Last MissionSecret

    Steam withholds the description of a secret achievement.
    5.4%
13. 
    Complexity

    Complete Level: Gunnarson Complex
    37%
14. 
    Spelunker

    Complete Level: Kellington Colliery
    27%
15. 
    Oil Spill

    Complete Level: Oil Rig
    26%
16. 
    IT Specialist

    Complete Level: Iron Dragon Data Center
    34%
17. 
    Dark Secrets

    Complete Level: Site 32
    30%
18. 
    Lost and Found

    Complete Level: Crash Site
    28%
19. 
    Smol Brain

    Collect 50% of all intel docs
    20%
20. 
    Big Brain

    Collect all intel docs
    3.1%
21. 
    Average Weapons Enjoyer

    Acquire all weapon parts
    4.7%
22. 
    Trepangus

    Throw an enemy into the vent in the first combat encounter in Site 14
    5.2%
23. 
    Average Weapons Fan

    Use a weapon bench to customize a weapon for the first time
    85%
24. 
    You Monster!

    Throw a TF27 soldier into the helicopter blades in Site 14
    7.1%
25. 
    You’re Paying For Their F***ing Surgery!

    Kill all TF27 soldiers in Site 14
    11%
26. 
    Dry Party

    Destroy 100 beer/wine bottles
    43%
27. 
    EmersusSecret

    Steam withholds the description of a secret achievement.
    4.8%
28. 
    50 shades of burnt

    Destroy 1000 cultist books
    31%
29. 
    TrePayne

    Acquire the dual wield serum
    44%
30. 
    Pest ControlSecret

    Steam withholds the description of a secret achievement.
    60%
31. 
    XCISecret

    Steam withholds the description of a secret achievement.
    43%
32. 
    LXXVIIISecret

    Steam withholds the description of a secret achievement.
    29%
33. 
    CVISecret

    Steam withholds the description of a secret achievement.
    29%
34. 
    Slide Into Your DMs

    Slide into an enemy and grab him while he’s ragdolled
    41%
35. 
    You're a Firework!

    Shoot an enemy while he’s thrown as a hostage grenade, detonating his grenade
    36%
36. 
    Efficient

    Use every bullet in a pistol magazine to get headshot kills
    4.6%
37. 
    That Was a Close One!

    Kill an enemy with a headshot on final bullet in the mag
    76%
38. 
    Solid 106

    Stealth kill an entire squad without anyone becoming alerted
    22%
39. 
    Stylish

    Grab an enemy, throw and kill him with a headshot
    36%
40. 
    Oh Snap!

    Execute your first hostage
    84%
41. 
    JuggerNOT

    Kill a heavy soldier
    82%
42. 
    How’s That Helmet Working?

    Kill an enemy by shooting through his helmet with a DMR
    54%
43. 
    Cost Effective

    Kill 3 enemies with 1 grenade
    72%
44. 
    Backfired

    Shoot an enemy’s thrown grenade, killing him with it
    43%
45. 
    Stick Around

    Kill an enemy with a tomahawk
    28%
46. 
    Think Fast!

    Kill an enemy with a flashbang impact
    4.5%
47. 
    Flashlight!

    Alert an enemy by shining a flashlight from behind, shoot him before he turns around
    62%
48. 
    CVSecret

    Steam withholds the description of a secret achievement.
    92%
49. 
    XCVSecret

    Steam withholds the description of a secret achievement.
    63%

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 49 of them.